PERFORMANCE SPECIFICATIONS
TRM6.1
Free Field Frequency Response
55Hz–21kHz, 2dB
Peak Acoustic Output
≥119dB (per pair w/music @ 1m)
Total Harmonic Distortion (THD) <0.5%, 150Hz–21kHz (90dB @ 1m on axis)
High Frequency Driver
Low Frequency Driver
1" (25mm) Vifa Soft Dome
6.5" (165mm) Polypropylene Cone/
Inverted Nitrile Rubber Surround
Magnetically Shielded
3
Cabinet
0.26 ft (7.3 liters) Vented
Front Panel:
Power Switch
System LED (Power/Clip/Thermal)
Frequency Response
@ 1m on axis
Rear Panel:
XLR Balanced Input
RCA Unbalanced Jack
Unbalanced/Balanced DIP Switch
Input Sensitivity DIP Switches
Bass Rolloff DIP Switches
Bass Shelving DIP Switches
Treble Shelving DIP Switches
IEC Standard Line Input / AC Line Fuse
8.875"W x 13.25"H x 11.50"D
(22.54cm x 33.65cm x 29.21cm)
23 lbs. (10.43kg)
Dimensions
Net Weight
Energy Time Curve
AMPLIFIER SECTION
Power Rating
FTC (20Hz–20kHz, 0.1% THD)
35 Watts RMS @ 6 ohms (high frequency)
50 Watts RMS @ 4 ohms (low frequency)
>100dB
Signal-to-Noise
CMRR
>70dB typical @ 1kHz
Input Impedance
Input Sensitivity Range
47kΩ per phase balanced, 47kΩ unbalanced
500mV to 3V (unbalanced)
275mV to 1.5V (per phase balanced)
(+4dB, +1dB, -2dB, -5dB, -8dB, -11dB)
+33dB max. to +18dB min.
Gain
Power Consumption
(both channels driven)
Idle Power: 11W / 150mA @ 115 VAC
Idle Power: 11W / 75mA @ 230 VAC
Normal Operation: 55W / 600mA @ 120 VAC
Normal Operation: 54W / 310mA @ 230VAC
Full Power: 139W / 1.37A @ 120VAC
Full Power: 130W / 680mA @ 230VAC
Horizontal Polar Response
CROSSOVER SECTION
Crossover Frequency
Crossover Slope
Subsonic Filter
Bass Shelving
3.2kHz
24dB/octave Linkwitz-Riley
Selectable 30Hz or 60Hz @ 12dB/octave
30Hz to 200Hz, 4dB
(+4dB, +2dB, 0dB, -2dB, -4dB)
5kHz to 20kHz, 4dB
Treble Shelving
(+4dB, +2dB, 0dB, -2dB, -4dB)
Dimensions
Specifications are subject to change without notice.
– i –
NOTICE - IMPORTANT SAFETY INFORMATION
The lightning flash with arrowhead symbol within an equilateral trian-
gle is intended to alert the user to the presence of uninsulated "dan-
gerous voltage" within the product's enclosure, that may be of suffi-
cient magnitude to constitute a risk of electric shock to persons.
C A U T I O N
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
The exclamation point within an equilateral triangle is intended to
alert the user of the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
WARNING: TO PREVENT FIRE OR SHOCK HAZARD
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
1. READ INSTRUCTIONS
grounded connection. It is important that the blades of the equip-
ment’s plug be able to fully insert into the mating receptacle.
Never remove the round grounding pin on the plug in an attempt
to mate to a two wire ungrounded receptacle: use a grounding
adaptor with the grounding tab or wire suitably connected to
earth ground.
All the safety and operating instructions of your Hafler equipment
should be read before power is applied to the equipment.
2. RETAIN OWNER'S MANUAL
These safety and operating instructions should be retained for
future reference.
11. NON-USE PERIODS
3. HEED WARNINGS
During periods of extended non-use, the power cord should be
unplugged from the power source.
All warnings on the equipment and in the operating instructions
are important and should be followed.
12. CLEANING
4. FOLLOW INSTRUCTIONS
The equipment should be cleaned only as detailed in the operat-
ing instructions.
All operating and use instructions are important and should be
followed.
13. OBJECT AND LIQUID ENTRY
5. HEAT
Care should be taken so that objects and/or liquids, such as clean-
ing fluids or beverages, are not spilled into the enclosure of the
equipment.
The equipment should be kept away from areas of high temper-
ature, i.e., heater vents, radiators, stoves/ovens, fireplaces, etc.
6. VENTILATION
14. DAMAGE REQUIRING SERVICE
Hafler equipment should be serviced by qualified service person-
nel when:
The equipment should be used in an area suitable for proper ven-
tilation. Care should be taken not to impede airflow in and
around the cabinet.
A. The power supply cord or plug has been damaged, or
7. WATER AND MOISTURE
The equipment should not be used in or around water, such as a
bathtub, sink, or swimming area. Also, the equipment should not
be used in areas prone to flooding, such as a basement.
B. Objects have fallen onto, or liquid has been spilled into the
equipment, or
8. POWER SOURCES
C. The equipment has been exposed to rain, or
The equipment should be connected only to a power source of
the same voltage and frequency as that listed on the rear panel
above the power cord entry point.
D. The equipment does not appear to operate normally or
exhibits a marked change in performance, or
9. POWER CORD PROTECTION
E. The equipment has been dropped, or the enclosure has
been damaged.
Power cords should be arranged so they do not interfere with the
movement of objects in the room: people, fan blades, utility
carts, etc. Also, care should be taken that the cord is not pinched
or cut, and placed so it is not in danger of being pinched or cut,
as in under a rug, around a tight corner, etc.
15. SERVICING
The user should not attempt to service the equipment beyond that
which is described in the operating instructions. All other service
should be referred to qualified service personnel.
10. POWER CORD GROUNDING
The power supply cord is of a three wire grounded type, designed
to reduce the risk of electric shock sustained from a live cabinet.
It is assumed to be of suitable length for most uses of the equip-
ment. The use of extension cords and power strips is discouraged
unless they are of suitable rating to deliver the required total cur-
rent for safe operation of all connected equipment. Furthermore,
extension cords or power strips must provide the same three wire
16. CARTS AND STANDS
The equipment should be used with carts or stands only of suffi-
cient strength and stability for the use intended. An equipment
and cart combination should be moved with care. Quick stops
and starts, excessive force, and uneven surfaces may cause the
equipment and cart combination to topple.
– ii –
ADVERTENCIA – INFORMACION DE SEGURIDAD IMPORTANTE
El símbolo de flecha relámpago dentro de un triángulo equilátero, es para
alertar al usario de la presencia de “voltajes peligrosos” no aislados en el
interior del aparato, los cuales pueden ser de suficiente magnitud para
constituir un riesgo de choque eléctrico a las personas.
El símbolo de exclamación dentro de un triángulo equilátero, es para aler-
tar al usuario de la presencia de instrucciones importantes de operación y
mantenimiento (servicio) en la documentación que acompaña al equipo.
1. LEA LAS INSTRUCCIONES
enchufes no es recomendado, a menos que tengan el amperaje
adecuado para poder suministrar la corrioente requerida pra la
operación segura de todo el equipo conectado. Aun más, las
extensiones deben proveer de la misma conección aterrada de
tres hiles. Es importante que el enchufe se pueda introducir com-
pletamente en el receptáculo. Nunca remeva el pin de ater-
ramiento en un intento por conectar el cable en un receptáculo
de dos hilos no aterrado: use un adaptador de aterramiento que
esté adecuadamente conectado a un punto de tierra.
Todas las instrucciones de seguidad y operación de su equipo
Hafler, deben ser leídas antes de que el equipo sea conectado
dléctricamente.
2. CONSERVE EL MANUAL DEL PROPIETARIO
Estas instrucciones de seguridad y operación, deben ser conser-
vadas para futuras referencias.
3. CUADROS DE ADVERTENCIAS
Todas las advertencias en el equipo y en las instrucciones de
operación, son importantes y deben ser seguidas.
11. PERIODOS SIN USO
Durante períodos prolongados sin uso del equipo, el cable de
corriente debe ser desconectado de la fuente de electrixidad.
4. SIGA LAS INSTRUCCIONES
Todas las instrucciones de uso y operación son importantes y
deben ser seguidas.
12. LIMPIEZA
El equip debe ser limpiado solo en la forma que se detalla en las
instrucciones de operación.
5. CALOR
El equipo debe ser mantenido lejos de areas de alta temperatura,
como por ejemplo: ventilaciones de calentadores, radiadores, est-
ufas/hornos, hogueras, etc.
13. INTRODUCCIÓN DE OBJETOS Y LIQUIDO
Deben ser tornadas precauciones con el fin de que objetos y/ó
líquidos, tales como fluidos de limpieza y gaseosas, no sean der-
ramados dentro del chassis del aparato.
6. VENTILACION
El equip debe ser usado en áreas con ventilación adecuada.
Deben er tornadas las precauciones necesarias para no impedir el
flujo de aire dentro y alrededor del aparato.
14. DAÑOS QUE REQUIEREN DE SERVICIO
Los equipos Hafler deben ser llevados a servicio por personal cal-
ificado cuando:
7. AGUA Y HUMEDAD
A. El cable de corriente ó el enchufe haya sido dañado, ó
El equipo no debe ser usado en el agua ó alrededor de ésta, tales
como en una bañera, tanque o áreas de nado. También, el equipo
no debe ser usado en áreas propensas a inundaciones, tales como
en un sótano.
B. Objetos ó líquido hayan sido introducidos ó derramado en
el equipo, ó
8. FUENTES DE PODER
C. El equipo haya sido expuesto a lluvia, ó
El equipo debe ser conectado a una fuente de poder del mismo
voltaje y frecuencia que el indicado en el panel trasero sobre el
punto de entrada del cable de corriente.
D. El equipo aparenta no operar normalmente ó exhibe un
marcado cambio en su desempeño, ó
9. PROTECCION DEL CABLE DE CORRIENTE
E. El equipo se ha caído, o el chassis ha sido golpeado.
Los cables de corriente deben ser dispuestos de forma tal que no
interfieran con el movimiento de objetos en la sala: personas,
aspas de ventilación, carretillas, etc. También, es necesario tener
cuidado de que el cable no esté punzado o cortado, y debe estar
ubicado de forma tal que esto no ocurra, como podría suceder
debajo de una alfombra o al pasar el cable por una esquina
aguda, etc.
15. SERVICIO
El usuario no deberá intentar darle servicio al equipo más allá de
lo que está descrito en el instructivo de operación. Todo lo
demás, deberá ser referido a servicio por personal calificado.
16. CARRETILLAS Y SOPORTES
El equipo podrá ser usado con carretillas y soportes que tengan
la fortaleza y estabilidad suficiente para el uso previsto.
10. ATERRAMIENTO DEL CABLE DE CORRIENTE
El cable de corriente es del tipo aterrado de tres hilos, diseñado
para reducir el riesgo de una descarga eléctrica procendent de un
chasis energizado. Se asume que su longitud es suficiente para la
mayoría de usos del equipo. El uso de extensiones y multi-
La combinación equipo/carretilla deberá ser movida con cuida-
do. Rápidas paradas y arranques, excesiva fuerza y superficies
imparejas, pueden causar el volcamiento del conjunto de car-
retilla/equipo.
– iii –
ATTENTION: INFORMATIONS IMPORTANTES DE SÉCURITÉ
La lumière clignotante du symbole de la flêche à l'intérieur d'un triangle
équilatéral, à pour objet d'alerter l'utilisateur de la présence “d'un voltage
dangereux” non-isolé à l'intérieur du produit, qui pourrait être de magnitude
suffisante au risque d'éléctrocution.
Le point d'exclamation, à l'intériur d'un triangle équilatéral, à pour objet de
prévenir l'utilisateur de l'importance des instructions de fonctionement et de
maintenance, jointes à l'appareil.
électrique requise à un fonctionement sans risque, de tout
matériel relié.
11. PÉRIODES DE NON-UTILISATON
1. LIRE LES INSTRUCTIONS
Le mode d'emploi et les mesures de sécurité de votre
équipement Hafler devraient être consultés avant sa mise en
marche.
Durant les périodes de non-utilisation, la prise de courant ne
devrait pas être branchée à une source d'energie.
2. CONSERVER LE GUIDE DE L'UTILISATEUR
Le mode e'emploi et les mesures de sécurité devraient être
conservés pour des références futures.
12. NETTOYAGE
Le matériel devrait être nettoyé en respectant les instructions
indiquées.
3. CONSIDÉRATIONS DE MISE EN GARDE
13. PENETRATION DES LIQUIDES
Le mode d'emploi et les mises en garde concernant cet
équipement sont de grande importance et devraient être suivis.
Un attention particulière est éxigée quant à la dispersion de liq-
uides tels que les produits de nettoyage et boissons, de façcon
à éviter toute pénetration dans l'enceinte du matériel.
4. SUIVRE LE MODE E'EMPLOI
Le mode d'emploi et les conseils d'utilisation sont importants et
devraient être suivis.
14. DÉGÂT NÉCESSITANT UNE RÉVISION
Le matériel Hafler devrait être révisé par des personnes qual-
ifées de service après-vente, lorsque:
5. CHALEUR
Le matériel devrait être préservé loin de toute source de
chaleur: radiateurs, cuisinière/fours, cheminées,…etc.
A. Les fiches ou la prise de courant ont été endommagé, ou:
6. VENTILATION
B. De objets sont tombés sur le matériel, ou des liquides s'y
sont dispersés, ou:
Le matériel devrait être utilisé dans un endroit à bonne ventila-
tion. Il reste nécessaire de respecter la circulation de flux d'air
à l'intérier et autour du meuble.
C. Le matériel a été exposé à la pluie, ou:
7. EAU ET HUMIDITÉ
Le matériel ne devrait pas être utilisé près d'une source d'eau,
telle qu'une baignoire, un évier, ou une aire de baignade. De
plus, le matériel ne devrait pas être utilisé dans des lieux sujets
aux innondations, tels que les sous-sols.
D. Le matériel ne semble pas fonctioner correctement, ou
affiche un changement de performance, ou:
E. Le matériel a été renversé à terre, ou l'enceinte a été
endommagée.
8. SOURCES D'ÉNERGIE
Le matériel devrait seulement être relié à une source d'énergie
de même voltage et fréquence que celle indiquée sur le tableau
arrière, au dessus de la fiche d'entrée de la prise de courant.
15. REVISION
L'utilisateur ne devrait pas essayer de réviser le matériel en
allant plus loin que ce qui a été décrit dans le mode d'emploi.
Toute autre réviion devrait être confiée à un personnel qualifié.
9. PROTECTION DE LA PRISE DE COURANT
La prise de courant devrait être arrangée de façon à ne pas
interférer avec le déplacement d'objets (chariots, pales de ven-
tillateurs…etc.) ou de personnes à l'intérieur de la pièce.
D'autre part, il faudrait faire tres attention à ce que la prise ne
soit pas percée ou coupée, ou disposée de façon à risquer de
l'être, comme sous un tapis, autour d'un angle pointu…etc.
16. CHARRIOTS ET MEUBLES
Le matériel devriat être utilisé avec des charriots et meubles de
qualité et stabilité suffisante à son utilisation préconçue.
L'ensemble du matériel et du charriot devrait être déplacé avec
précaution. Des mises en marche et arrêts brusques, des colli-
sions excessives ainsi que des surfaces inégales peuvent ren-
verser l'ensemble du matériel et du charriot.
10. PRISE DE COURANT ÀTROIS FICHES
La prise de courant est composée de trois fiches, désignées à
réduire le risque de décharge électrique de l'appareil.
Elle devrait être de longueur suffisante pour la plupart des util-
isations de ce matériel. L'utilisation de rallonge t d'adaptateur
est déconsellée à moins dêtre en mesure de fournir la charge
– iv –
ACHTUNG – WICHTIGE SICHERHEITS – INFORMATIONEN
Der Blitz mit dem Pfeil, in einem gleihschenkligen Dreieck, soll den benutzer
vor unisolierter “gefährlicher Spannung” innerhalb des Gerätes warnen.
Das Ausrufezeichen, in einem gleichschenkligen Dreieck, soll den Benutzer
darauf aufmerksam machen, daβ dem Gerät wichtige Operations - und
Service - Informationen beigefügt sind.
1. INSTRUKTIONEN LESEN
11. ZEITRÄUME IN DENE DAS GERÄT NICHT GENUTZT WIRD
Wird das Gerät über einen längeren Zeitraum nicht genutzt (z.B.
Urlaub), ziehen Sie bitten den Netzstecker aus der Steckdose.
Alle Sicherheits- und Operationshinweise Ihres Hafler Equipments
sollten vor der Inbetriebnahme gelesen werden.
2. BETRIEBSANLEITUNG AUFBEWAHREN
12. REINIGEN
Bewahren Sie die Bedienungsanleitung sorgfältig auf, damit Sie in
dieser auch in Zukunft nachschlagen können.
Reinigen Sie das Gerät nur, wie in der Bedienungsanleitung
detailliert beschrieben.
3. WARNUNGEN BEACHTEN
13. EINDRINGEN VON FREMDKÖRPERN
Achten Sie darauf, daβ weder Fremdkörper, noch Flüssigkeiten in
das Gerät eindringen.
Alle Warnungen des Gerätes und der Bedienungsanleitung sind
extrem wichtig und müssen befolgt werden.
4. INSTRUKTIONEN BEACHTEN
14. ERFORDERLICHER REPARATURSERVICE
Hafler Equipment sollte nur von qualifizierten Service-Technikern
instand gesetzt werden, wenn:
Alle Operations- und Gebrauchshinweise sind extrem wichtig und
müssen beachtet werden.
5. HITZE
A. Das Stromversorgungskabel beschädigt wurde
B. Eine Flüssigkeit in das Gerät eingedrimgem ist
C. Das Gerät Regen ausgesetzt wurde
Das Equipment sollte fern von Hitze ausstrahlenden Geräten
aufgestellt werden, wie z.B. Heizungen, Öfen etc.
6. VENTILATION
Das Equipment sollte so aufgestellt werden, daβ eine ausre-
ichende Ventialition gewährt wird.
D. Das Gerät nicht mehr ordnungsgemäβ funktioniert, ggf. nicht
7. WASSER UND FEUCHTIGKEIT
mehr die volle Leistung abgibt
Das Equipment sollte nicht im oder in der Nähe von Wasser
benutzt werden, wie z.B. in Schwimmbädem, Saunen etc. Es sollte
ebenfalls nicht in Überschwämmungsgefährdeten Gebieten
aufgestellt werden, wie z.B. Kellerräumen.
E. Das Gerät runtergefallen ist oder das Gehäuse beschädigt
wurde
15. SERVICE
8. STROMANSCHLUβ
Der Benutzer sollte nur den Service ausführen, der in der
Bedienungsanleitung für den Benutzer freigegeben wird. Den
weiterführenden Service sollte nur von qualifizierten Tevhnikern
durchgeführt werden.
Das Equipment darf nur an eine Stromversorgung angeschlossen
werden, die die gleichen Parameter aufweist, welche auf der
Rückseite, über em Anschluβterminal des Gerätes, aufgelistet sind.
9. SCHUTZ DER ZULEITUNG
16. AUFSTELLUNG
Die Zuletungen sollten so verlegt werden, daβ diese nicht in den
Bewegungsbereich anderer Möbelstücke oder Personen hereinra-
gen. Achten Sie darauf, das das Kabel nicht gequestscht oder
durchschnittren wird, wie z.B. unter Schränken oder an scharfen
Kanten etc.
Das Equipment sollte so aufgestellt werden, daβ der gewählte
Untergrund die erforderliche Stabilität aufweist, so daβ eine
gefahrlose Bnutzong gewährleistet wird.
Das Equipment und der Untergrund sollte mit äuberster Vorsicht
bewegt werden. Bei schnellen Bewegungen oder starkem
Abbremsen, kann es zum Umkippen des Equipments kommen.
10. MASSEANSCHLUβ
Das dreiadrige Anschlubkabel ist mit einem Erdungsleiter ausges-
tattet, welcher die Risiken eines Elektroschocks verringert. Das
Kabel hat eine Länge, welche für die meisten Anwendungen völ-
lig ausreicht. Wenn Sie Verlängerungskabel benutzen, achten Sie
darauf, das dies die erforderlichen Ströme bertragen können.
Benutzen Sie immer dreiadrige Verlängerungskable.
– v –
NOTARE – IMPORTANTI INFORMAZIONI SULLA SICUREZZA
Il simbolo del fulmine in un triangolo equilatero vuole avvertire della pre-
senza di tensioni elevate non isolate e di valore sufficiente per costituire ris-
chio di shock elettrico alle persone.
Il punto esclamativo contentuto in un triangolo equilatero vuole avvertire l'u-
tente della presenza di parti di servizio e di manutenzione che sono dettagli-
ate nel manuale di istruzioni.
1. LEGGETE LE ISTRUZIONI
11. PERIODI DI NON UTILIZZO
Tutte le istruzioni riguardanti la sicurezza ed il funzionamento
devono essere lette prima di applicare tensione all'apparato.
Durante lunghi periodi di non utilizzo, staccare il cavo di alimen-
tazione.
2. CONSERVATE IL MANUALE
12. PULIZIA
Queste istruzioni riguardanti la sicurezza ed il funzionamento
devono essere conservate come riferimento futuro.
L'apparato deve essere pulito solo come indicato dalle istruzioni.
13. INGRESSO DI OGGETTI E LIQUIDI
3. AVVERTENZE
Si deve prestar attenzione che oggetti e liquidi, come fluidi deter-
genti e bibite, non vengano versati all'interno dell'apparato.
Tutte le avvertenze poste sull'apparato e sul libretto di istruzioni
sono importanti e devono essere seguite.
14. RIPARAZIONI
4. SEGUIRE LE ISTRUZIONI
Gli apparati Hafler devono essere riparati da personale qualifica-
to quando:
Tuttle le istruzioni operative e di funzionamento devono essere
seguite.
5. TEMPERATURA
A. Il cavo di alimentazione o la spina sono danneggiati
L'apparato deve essere mantenuto lontano da tuttle le zone ad
alta temperature, termosifoni, termoconvettori, stufe e forni,
caminetti ed altro.
B. Oggetti sono caduti all'interno del telaio o quando del
liquido è entrato
6. VENTILAZIONE
C. Quando l'apparato è stato esposto a pioggia
L'apparato deve essere posizionato in aree convenienti per una
corretta ventilazione. Prestare attenzione che sia consentita cir-
colazione d'aria attorno e dentro il cabinet.
D. Quando l'apparato non sempra funzionare normalmente o
quando esibisce un cambiamento di prestazioni o
7. ACQUA E POLVERE
E. Quando è caduto o il telaio è stato danneggiato
L'apparato deve essere posizionato lontano da zone contenenti
acqua, come vasche a bagno, acquari e piscine. Inoltre non deve
essere impiegato in aree soggette ad allagamento, come le can-
tine.
15. ASSISTENZA
L'utente non deve tentare di prestare assistenza all'apparato, se
non per quanto esposto nelle istruzioni. Tutti gli altri interventi
devono essere effettuati da un tecnico specializzato.
8. REQUISITI DI ALIMENTAZIONE
L'apparato deve essere connesso solo ad un'alimentazione della
stessa tensione e frequenza di quanto scritto sulla parte posteriore
del telaio.
16. CARRELLI E STAND
L'apparato deve essere impiegato su carrelli o stand solo se questi
sono sufficientemente solidi e stabili per la funzione a cui si vuole
dedicarli.
9. PROTEZIONE DEL CAVO DI ALIMENTAZIONE
Il cavo di alimentazione deve essere posizionato in modo di non
interferire con il movimento di oggetti nella stanza: persone, ven-
tilatori, carrelli, ecc…prestate attenzione anche che il cavo non
sia tagliato o spellato e che non possa tagliarsi e spellarsi.
La combinazione di carrello ed apparato deve essere mossa con
cautela. Fermate e partenze improvvise, forze eccessiva e superfi-
ci irregolari, possono ribaltare la cominzione carrello e apparato.
10. MESSA A TERRA
Il cavo di alimentazione è del tipo a tre fili con terra ed è proget-
tato pr ridurre il rischio di shock elettrici. Si presume che sia della
lunghezza sufficiente per la maggior parte degli impieghi.
L'impiego di prolunghe e adattatori è sconsigliato se questi non
garantiscono la potenza sufficiente per i corretto fuinzionamento
degli apparati connessi. E altersì importante che vengano sempre
impiegate prolunghe con la configurazaione a tre fili con terra.
– vi –
TABLE OF CONTENTS
PERFORMANCE SPECIFICATIONS ........................................................................................................................i
Frequency Response Graph
Energy Time Curve Graph
Horizontal Polar Response Graph
Dimensions
SAFETY PRECAUTIONS ..........................................................................................................................................ii
INTRODUCTION ..................................................................................................................................................1
TECHNICAL DESIGN FEATURES ............................................................................................................................1
FRONT & REAR PANEL VIEWS ..............................................................................................................................4
INSTALLATION
Location ............................................................................................................................................................5
Determining Acoustic Center ............................................................................................................................6
Input Switch ......................................................................................................................................................6
XLR Wiring Configurations ............................................................................................................................... 6
SCHEMATIC DIAGRAMS
Schematic Diagram............................................................................................................................................7
PC Board Layout..............................................................................................................................................12
OPERATION
Input Sensitivity................................................................................................................................................13
Bass Roll Off....................................................................................................................................................13
Bass Shelving ..................................................................................................................................................14
Treble Shelving ................................................................................................................................................14
AC Line............................................................................................................................................................14
Power Switch ..................................................................................................................................................14
Status LED........................................................................................................................................................15
Rubber Pad ......................................................................................................................................................15
Break-In and Warm-Up....................................................................................................................................15
Cleaning and Maintenance ..............................................................................................................................15
SERVICE REFERENCE
Parts List ..........................................................................................................................................................16
Functional Block Diagram ..............................................................................................................................19
Circuit Operation ............................................................................................................................................20
Calibration ......................................................................................................................................................20
Input Circuit ....................................................................................................................................................21
Tweeter Crossover............................................................................................................................................21
Woofer Crossover ............................................................................................................................................22
Thermal Protection ..........................................................................................................................................22
Clipping Indicator ............................................................................................................................................23
On Indicator ....................................................................................................................................................23
Tweeter Replacement ......................................................................................................................................24
Woofer Replacement........................................................................................................................................24
Amplifier Replacement ....................................................................................................................................25
Transformer Replacement ................................................................................................................................25
WARRANTY ..........................................................................................................................................................26
INTRODUCTION
Thank you and congratulations on your purchase of the HAFLER TRM6.1 reference monitor, the world's finest brand in
professional audio equipment.
The TRM6.1 (Trans•ana Reference Monitor) is a bi-amplified, two-way near field monitor offering unmatched quality
and performance in a truly professional grade product. The TRM6.1 is great for Professional Studios, Digital Work
Stations, Broadcast Booths, and Home Project Studios.
Although we realize a professional such as yourself already knows a thing or two about pro audio, we urge you to read
this manual to at least humor our technical writer. For ease of use, this manual is organized into three main sections:
Installation, Operation, and Service Reference. “Installation” covers the set-up of your new HAFLER equipment in the
system. “Operation” covers the controls and how to use them for optimum performance. “Service Reference” contains
field service information useful for technicians and engineers.
TECHNICAL DESIGN FEATURES
The TRM6.1 amplifiers utilize our trans•ana circuit topology employing MOSFETs in the output stage resulting in supe-
rior sound quality.
An active 4th order Linkwitz-Riley crossover sends frequencies above 3.2kHz to a 35-watt amplifier driving a proprietary
wave guide tweeter, and frequencies below 3.2kHz to a 50-watt amplifier driving an 6" transducer. The high frequency
channel features up to 4dB of Treble shelving, while the low frequency channel features up to 4dB of Bass shelving.
In addition, the low frequency channel includes an active 2nd order subsonic filter selectable to limit harmful frequen-
cies below 30Hz or 60Hz. Monitoring the status of both channels is done with an LED indicating Power On, Clipping
and Thermal.
The high frequency transducer is a Ferrofluid cooled 1" (25mm) soft dome hemispherical tweeter utilizing a rigid but
lightweight silk diaphragm. A Phase Lens and axis-symmetric exponential waveguide improve the transition of sound-
waves from planar to spherical which result in excellent high frequency dispersion and coherent on-axis frequency
response. The low frequency transducer is a proprietary 6.5" (165mm) steel basket woofer utilizing a 20 mil polypropy-
lene cone with a 20 mil dust cap. The suspension consists of a nitrile rubber surround and an extended collar flat spi-
der. The motor is constructed from a 1.25" diameter voice coil on an anodized aluminum former with an extended vent-
ed pole piece. The 33 oz. ferrite magnet is magnetically shielded to suppress stray leakage flux to only 4"...well within
the confines of the monitor's walls, making it great for use near CRT monitors.
The cabinet is made from acoustically dead 19mm MDF, internally lined with damping material, and features a rear fir-
ing radiused Aerovent for reduced turbulence. The outside features a semi-gloss finish and includes a rubber pad on the
underside to control vibration.
– 1 –
Amplifie
MEHSA
(Maximum Efficiency HeatSink Application) MEHSA is a proprietary process that yields up to 5 times better heat
transfer than traditional FET mounting techniques using the exact same components. A multi-layer insulated metal
substrate operating with minimal thermal resistance spreads heat both downward and outward to quickly dissipate
heat from each device across the heatsink. This process combined with our DSM technology and MOSFET devices
allow us to squeeze more watts per cubic inch from every output device as well as provide consistent thermal sta-
bility.
The MEHSA Way
The Old Way
THE RESULT: Better reliability through faster heat dissipation.
Trans•ana
Trans•ana (TRANSconductance Active Nodal Amplifier) is a circuit that allows the audio signal to pass through the
amplifier at low voltage. The signal is directly level-shifted to the fixed high voltage rails via a pair of driver tran-
sistors. Signal linearity is assured by an active node formed by the driver transistors at ultrasonic frequencies. This
allows amplifier performance similar to Trans•nova which is highly stable and linear while utilizing the advantages
of a non-floating power supply.
THE RESULT: An extended frequency band width accurately supplied to the output stages of the
amplifier.
MOSFET Devices
HAFLER is one of the few manufacturers in the sound community to utilize MOSFET devices in both the power
supply and output stages. MOSFET (Metal Oxide Semiconductor Field Effect Transistor) devices offer several
important inherent advantages over the 30-year-old technology of bi-polar design. These advantages include: ther-
mal stability, fast switching speed, ultra low output impedance and wide bandwidth linearity. In addition, MOSFETs
operate very similarly to vacuum tubes in that they are more linear than bipolar transistors. However, MOSFETs
can deliver the midrange clarity without the limitations of transient response and high frequency phase shifting
normally associated with tube operation.
THE RESULT: Thermal stability, fast switching speed, ultra low output impedance and wide bandwidth linearity.
– 2 –
Tweete
Wave Guide
The wave guide is a proprietary axis-symmetrical form of horn mounted to the tweeter to increase efficiency. The
wave guide improves the transition of sound waves (from planar to spherical) smoothly from the throat of the wave
guide to the mouth. The unique shape and smooth surfaces improve the tweeter's off-axis frequency response as
well as provide coherent on-axis response.
THE RESULT: Improves dispersion for a wider “sweet spot.”
Woofer
Shielded Magnet
A shielded magnet is used to reduce the radiation of high-strength magnetic fields from the woofer's motor assem-
bly. Suppression is accomplished by attaching a “bucking” magnet to the motor assembly in order to keep stray
leakage flux within the monitor cabinet. This type of shielding prevents
color and image distortion when placing the woofer in close proximity to
direct view (CRT) television receivers and computer monitors.
THE RESULT: Prevents distortion in TV and computer monitors.
Cabine
Phase Coherent
Each monitor is Phase Coherent in order to assure proper arrival times of all frequencies in the near field environ-
ment. This is accomplished by aligning both transducer's voice coils on a common ZDP (Zero Delay Plane) axis.
The cabinet baffle positions the woofer forward and the waveguide displaces the tweeter back with an additional
39ms delay in the high frequency amplifier to precisely “tweak” the tweeter onto its ZDP axis. This allows the
acoustic center, located midway between the high and low frequency transducers, to coherently deliver a flat fre-
quency and phase response around the crossover point.
THE RESULT: Delivers a flat frequency and phase response.
– 3 –
Front Panel View
Rear Panel View
Tweeter
Balanced
Input
Wave Guide
Status LED
Power
Switch
Unbalanced
Input
Input Switch
Sensitivity
Bass Roll Off
Bass
Shelving
Treble
Shelving
Heatsink
Woofer
AC Line
Input
AC Line
Fuse
Rubber Pad
INSTALLATION
LOCATION
The location of your reference monitors in addition to the acoustics of the listening room will influence the system frequency
response. In the near field environment, our ears are more sensitive to direct sound rather than the reverberation of sound.
Below are some recommendations for the initial set-up which may help you optimize performance in complex acoustic envi-
ronments. In any configuration, keep the rear of the monitor at least 5" (12.7cm) away from any wall or obstruction to
reduce excessive boundary “loading” of the woofer vent and to optimize heat sink cooling.
INADEQUATE
Off-Axis Response
OPTIMUM
On-Axis Response
Fig. 1
Fig. 2
Aiming the monitors directly forward (Fig. 1) may cause response problems resulting in inadequate stereo imaging. Aiming the
monitors toward you and spaced equally like a triangle (Fig. 2) provides the best imaging and produces the flattest frequency
response.
INADEQUATE
Horizontal Alignment
OPTIMUM
Vertical Alignment
Fig. 3
Fig. 4
If you frequently move your chair from side to side in front of your mixing console, positioning the tweeter and woofer in hor-
izontal alignment (Fig. 3) can create complex lobing patterns. Minimizing this effect can be achieved by placing the tweeter
and woofer in vertical alignment (Fig. 4). If it is essential to position the monitors horizontally, place them with the tweeters
toward the inside.
– 5 –
DETERMINING ACOUSTIC CENTER
Finding the “Acoustic Center” is accomplished by positioning the monitors so
coherent arrival of the transducers occurs at ear level. The Acoustic Center is
located 3 to 4 feet in front of the monitor, measuring perpendicularly from the
center point of the cabinet (midway between the woofer and tweeter). Our
tests have shown that a flat phase and frequency response occurs just above
and below the Acoustic Center with the minimum and maximum height
spanning between the tweeter dome and woofer dust cap.
INPUT SWITCH
Use good judgement and common sense throughout all phases of
The unbalanced input uses a conventional RCA phone jack. Move
the input switch ON (-->) to use this jack. The balanced input jack
is an XLR plug. The XLR jack is connected according to the IEC and
AES standard. Move the input switch OFF (<--) to use this jack.
the installation and use mounting techniques appropriate for the sur-
face you select. Use the mounting hardware according to the man-
ufacturer's recommendation and provide adequate reinforcement to
the monitors if needed. Do not mount the monitor only to drywall—
make sure the fasteners are secured to a stud, joist, or other structural
support. If appropriate, use a secondary support for added safety—a
properly installed safety cable provides an extra margin of safety and
can be installed out of sight easily.
Unbalanced
Input
Balanced
Input
Move input
switch
Move input
switch
RIGHT
(-->) to use
RCA
LEFT (<--)
to use
XLR
connector
connector
MOUNTING
The monitor may be mounted on a wall or ceiling, using suitable
mounting hardware. The base of the monitor includes mounting
inserts designed for use with “OmniMount Systems®” or equivalent
mounting products1.
If you mount the monitors to a wall or ceiling, you must take special
care to mount them securely to prevent them from falling and caus-
ing damage or injury. Make sure that the mounting hardware (fas-
teners and connectors) and the surface you are mounting to are each
capable of securely holding the monitor in place even if it is struck
or moved. Make sure the mounting hardware, fasteners, and con-
nectors are rated for an object at least as heavy and bulky as the
monitor.
OmniMount Part #
100 ST-MP / 100 STX-MP
OmniMount Part #
100 WB / 100 WBX
1 “OmniMount Systems®” is a registered trademark of OmniMount
Systems, 1501 West 17th Street, Tempe, Arizona 85281-6255,
TEL (602) 829-8000 FAX (602) 756-9000.
OmniMount Systems is not affiliated with Hafler or Rockford Corporation.
XLR WIRING CONFIGURATIONS
Using the balanced XLR input is recommended for installations where long cable runs are used or when the potential for stray electromag-
netic fields from other wires exists. There is a balanced and unbalanced method in which the XLR inputs can be used. The first method is
an XLR Balanced Input using 3-conductor cable. The balanced signals carried on pins 2 and 3 are equal in amplitude and opposite in phase.
Pin 1 is the ground and shield. In this configuration, noise common on both phases of signal are effectively "canceled" out. The second
method is an XLR Unbalanced Input using 2-conductor cable with the signal carried in the center conductor and the ground carried on the
shield. Many popular mixers use unbalanced outputs and can be used with the XLR balanced input. However, in this type of configuration
we recommend using twisted pair cable or short cable length to prevent residual ground noise.
XLR Unbalanced Input
XLR Balanced Input
Connect (–) and GND (shield) terminals at both ends of cable to
Check output from source for proper signal polarity
prevent unstable amplifier operation
INPUT
FROM
INPUT
FROM
SOURCE
SOURCE
Pin 1 = GND
Pin 2 = (+)
Pin 3 = (–)
Pin 1 = GND
Pin 2 = (+)
Pin 3 = GND
– 6 –
SCHEMATIC DIAGRAM
NOTES: Unless specified otherwise
1. All resistors in ohms.
2. All capacitors in microfarads.
3. Channel 1 only shown.
– 7 –
Qualified Service Personnel Only
–8–
SCHEMATIC DIAGRAM
NOTES: Unless specified otherwise
1. All resistors in ohms.
2. All capacitors in microfarads.
3. Channel 1 only shown.
– 9 –
Qualified Service Personnel Only
–10–
NOTES: Unless specified otherwise
1. All resistors in ohms.
Qualified Service Personnel Only
2. All capacitors in microfarads.
3. Channel 1 only shown.
Qualified Service Personnel Only
OPERATION
NOTE: When using the INPUT SENSITIVITY, select only one switch configuration at a time. Engaging multiple switch
configurations (i.e., moving two or more switches ON) may cause undesirable operation and is NOT RECOMMENDED.
INPUT SENSITIVITY
The Input Sensitivity adjustment is used to match the monitor with signal levels from a variety of mixing consoles. The
Input Sensitivity uses DIP switches to match input levels over a 15dB range and are marked +1dB, –2dB, –5dB, –8dB,
and –11dB. These numbers indicate the input in dBu required to produce an output of 100dB SPL @ 1 meter. When all
switches are in the OFF (left) position, the monitor is matched to +4dB input level. In the +4dB switch setting, the mon-
itor is less sensitive to the input signal. In the –11dB switch setting, the monitor is more sensitive to the input signal.
I
N
P
U
T
+4dB Input
+1dB Input
–2dB Input
–5dB Input
–8dB Input
–11dB Input
NOTE: When using the Bass Roll Off, select only the 30Hz or 60Hz filter. Engaging both switch configurations at
one time (both switches ON) may cause undesirable operation and is NOT RECOMMENDED.
BASS ROLL OFF
The Bass Roll Off is a subsonic filter used to limit harmful frequencies sent to the low frequency transducer to prevent
overexcursion. The filter is selectable to electronically limit frequencies below 30Hz or 60 Hz at a 12 dB/octave roll
off. When both switches are in the OFF (left) position, the amplifier has an electrical -3dB down point of 28Hz. For
optimum operation select only one switch configuration at a time.
30Hz Subsonic Filter
60Hz Subsonic Filter
– 13 –
NOTE: When using the BASS SHELVING & TREBLE SHELVING, select only one switch configuration at a time.
Engaging multiple switch configurations (i.e., moving two or more switches ON) may cause undesirable operation and
is NOT RECOMMENDED.
BASS SHELVING
Bass Shelving is used to match the low frequency response of the monitor to the acoustic environment. Bass Shelving
uses DIP switches to control frequencies from 40Hz to 200Hz over an 8dB range and are marked +4dB, +2dB, –2dB,
and –4dB. When all switches are in the OFF (left) position, the bass level is at 0dB.
–4dB
+4dB
+2dB
0dB
–2dB
TREBLE SHELVING
Treble Shelving uses DIP switches to control frequencies from 5kHz to 20kHz over an 8dB range and are marked +4dB,
+2dB, –2dB, and –4dB. When all switches are in the OFF (left) position, the treble level is at 0dB.
–2dB
–4dB
0dB
+2dB
+4dB
AC LINE
The TRM6.1 operates from a 115 VAC/60Hz power line. The TRM6.1CE operates from a 230 VAC 50/60Hz power line.
Connection is made by a 16 gauge, IEC Type 320, grounded line cord. For safety considerations only a properly ground-
ed (earthed) receptacle should be used. If a grounded circuit is not available, do not break off the ground pin; use the prop-
er adapter plug for a two wire receptacle with the grounding plug suitably connected to earth ground.
IMPORTANT: The power line fuse is mounted on the rear panel. If this fuse blows, replace it
with the same type and rating as indicated in the parts list.
only
– 14 –
POWER SWITCH
The POWER switch is located on the front panel. The LED will illuminate GREEN, indicating the respective amplifiers are on.
It is possible to leave the power switch in the ON position and switch the monitor remotely through a power distribution block
or switched outlet. When doing so, make sure the switch is rated for the current required by the monitor.
Standard practice is to turn the amplifier on last and off first when switching components to prevent
sending damaging transients to the speakers.
Es costumbre encender el amplificador de último y apagarlo de primero cuando se estan encendiendo/
apagando otros equipos, para así evitar el envío de transientes dañinas a los parlantes.
Il est de pratique courante de commencer par tourner l'amplificateur sur “off” et de terminer par “on,”
lorsqu'il s'agit de prévenir l'envoie de passages nuisible aux haut-parleurs.
Der Verstärker sollte als letztes Gerät eingeschaltet und als erstes Gerät wieder ausgeschaltet werden,
um eine Beschädigung der Lautsprecher durch spannungsspitzen zu vermeiden.
L'uso comune consiglia l'accensione dell'amplificatore per ultimo e lo spegnimento per primo quando
si accendono i vari componenti, per evitare l'invio di transitori danneggianti agli altoparlanti.
STATUS LED
Amplifier operation is monitored internally and has a status LED. This indicator can be used for system troubleshooting
in case of aberrant behavior.
LED – Monitors the status of the amplifiers.
COLOR
GREEN
STATUS
Power on*
Clipping
Thermal
FLASHING RED
RED
*Indicates the amplifier is on regardless of input signal
RUBBER PAD
A large rubber pad is supplied to eliminate annoying buzzes and rattles when placing the monitors on mixing consoles or
similar mounting surfaces. Attach the pad to the underside of the monitor in the following manner:
• Thoroughly clean area where pad will be positioned (i.e., with isopropyl alcohol)
• Remove paper liner from rubber pad (avoid touching adhesive with fingers)
• Position pad in desired location
• Press pad firmly to insure good contact
BREAK-IN and WARM-UP
We recommend initially breaking in the woofer for approximately 8 hours with musical information to establish the mon-
itor's natural bass response. To achieve the best sonic performance and image stability from the internal amplifiers, we rec-
ommend letting them warm up for 1 hour before beginning any critical listening.
CLEANING and MAINTENANCE
There is no requirement for regular maintenance on the electronic components of the monitor. If the cabinet or woofer
becomes soiled, it can be cleaned using a damp, soft cloth. If the monitor is located in a particularly dusty environment,
cleaning the inside with compressed air or vacuuming every 18 to 24 months is sufficient.
– 15 –
PARTS LIST
DESIGNATOR
VALUE
PART #
R174
R175
R176
R177
R178
R179
R18
R180
R181
R182
R183
R184
R19
R2
R20
R21
R22
R23
R24
R25
R26
R27
R278
R279
R28
R29
R3
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
R4
R40
R41
R42
R43
R44
R45
R46
R47
R48
R49
R5
R50
R51
R52
R53
R54
R55
R56
R57
R58
R59
R6
R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R7
RES 1.33K OHM 1/4W 1%
35.7K OHM 1/10 WATT 1%
RES 909 OHM 1/10W 1%
35.7K OHM 1/10 WATT 1%
30.1K RES 1% 0805
RES 2.0K OHM 1/10W 1%
RES 100K OHM 1/10W 5%
RES 20 OHM 1/10W 5%
RES 20 OHM 1/10W 5%
RES 20 OHM 1/10W 5%
RES 20 OHM 1/10W 5%
RES 10 OHM 1W
RM/4-1331C
RM/10-3572B
RM/10-9090B
RM/10-3572B
RM/10-3012B
RM/10-2001B
RM/10-104B
RM/10-200B
RM/10-200B
RM/10-200B
RM/10-200B
RM1-100-012
RM/10-6043B
RM/10-1001B
RM/10-104B
RM/10-225B
RM/10-104B
RM/10-104B
RM/10-103B
RM/10-2001B
RM/10-105B
RM/10-132B
RM/10-511B
RM/10-511B
RM/10-132B
RM/4-1210C
RM/10-1001B
RM/4-1210C
RM/10-221B
RM/10-100B
RM/10-301B
RM/10-301B
RM/10-2001B
RM/10-335B
RM/10-100B
RM/10-301B
RM/10-301B
RM/10-473B
RM/10-2001B
RM/10-621B
RM/10-301B
RM/10-1001B
ALL RESISTORS IN OHMS
R1
RES 1.0K OHM 1/10W 1%
RM/10-1001B
RM/10-473B
RM/4-682C
RM/4-682C
RV-502Q
R10
RES 47K OHM 1/10W 5%
RES 6.8K OHM 1/4W 5%
RES 6.8K OHM 1/4W 5%
POT 5K 10% PIHER
RES 1.0K OHM 1/10W 1%
35.7K OHM 1/10 WATT 1%
35.7K OHM 1/10 WATT 1%
35.7K OHM 1/10 WATT 1%
RES 14K OHM 1/10W 1%
POT 2K TRIM
R102
R103
R104
R105
R106
R107
R108
R109
R11
RM/10-1001B
RM/10-3572B
RM/10-3572B
RM/10-3572B
RM/10-1402B
RV-202
RM/10-1402B
RM/10-1402B
RM/10-133B
RM/10-301B
RM/10-621B
RM/10-100B
RM/10-621B
RM/4-101C
RM/10-2001B
RM/10-1001B
RM/10-103B
RM/10-9761B
RM/10-2800B
RM/10-100B
RM/4-101C
RM/10-511B
RM/10-511B
RM/10-7151B
RM/10-7151B
RM/10-473B
RM/10-9763B
RM/10-2002B
RM/10-200B
RM/10-2001B
RM/10-2002B
RM/10-223B
RV-502Q
RM/10-1001B
RM/10-200B
RM/10-200B
RM/10-103B
RM/10-2001B
RM/10-200B
RM1-100-012
RM/10-1001B
RM/10-1071B
RMP/4-3921-03
RM/10-225B
RM/4-3921C
RM/10-1001B
RM/10-335B
RM/10-101B
RM/10-101B
RM/10-152B
RM/10-1001B
RM/10-472B
RM/10-1622B
RM/10-1913B
RM/10-000B
RM/10-9091B
RM/10-6491B
RM/10-2001B
RM/10-103B
RM/10-9761B
RM/10-2001B
RM/10-2001B
RM/10-2211B
RES 604K OHM 1/10W 1%
RES 1.0K OHM 1/10W 1%
RES 100K OHM 1/10W 5%
RES 2.2M OHM 1/10W 5%
RES 100K OHM 1/10W 5%
RES 100K OHM 1/10W 5%
RES 10K OHM 1/10W 5%
RES 2.0K OHM 1/10W 1%
RES 1M OHM 1/10W 5%
RES 1.3K OHM 1/10W 5%
RES 510 OHM 1/10W 5%
RES 510 OHM 1/10W 5%
RES 1.3K OHM 1/10W 5%
RES 121 OHM 1/4W 1%
RES 1.0K OHM 1/10W 1%
RES 121 OHM 1/4W 1%
RES 220 OHM 1/10W 5%
RES 10 OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 2.0K OHM 1/10W 1%
RES 3.3M OHM 1/10W 5%
RES 10 OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 47K OHM 1/10W 5%
RES 2.0K OHM 1/10W 1%
RES 620 OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 1.0K OHM 1/10W 1%
R110
R111
R112
R113
R114
R115
R116
R117
R118
R119
R12
R120
R121
R122
R123
R124
R125
R128
R129
R13
R130
R131
R132
R133
R134
R135
R136
R137
R138
R139
R14
R140
R141
R142
R143
R144
R145
R146
R147
R148
R15
RES 14K OHM 1/10W 1%
RES 14K OHM 1/10W 1%
RES 13K OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 620 OHM 1/10W 5%
RES 10 OHM 1/10W 5%
RES 620 OHM 1/10W 5%
RES 100 OHM 1/4W 5%
RES 2.0K OHM 1/10W 1%
RES 1.0K OHM 1/10W 1%
RES 10K OHM 1/10W 5%
RES 9.76K OHM 1/10W 1%
RES 280 OHM 1/10W 1%
RES 10 OHM 1/10W 5%
RES 100 OHM 1/4W 5%
RES 510 OHM 1/10W 5%
RES 510 OHM 1/10W 5%
RES 7.15K OHM 1/10W 1%
RES 7.15K OHM 1/10W 1%
RES 47K OHM 1/10W 5%
RES 976K OHM 1/10W 1%
RES 20.0K OHM 1/10W 1%
RES 20 OHM 1/10W 5%
RES 2.0K OHM 1/10W 1%
RES 20.0K OHM 1/10W 1%
RES 22K OHM 1/10W 5%
POT 5K 10%
RES 1.0K OHM 1/10W 1%
RES 20 OHM 1/10W 5%
RES 20 OHM 1/10W 5%
RES 10K OHM 1/10W 5%
RES 2.0K OHM 1/10W 1%
RES 20 OHM 1/10W 5%
RES 10 OHM 1W
RES 1.0K OHM 1/10W 1%
RES 1.07K OHM 1/10W 1%
RES 3.92K OHM 1/4W 1%
RES 2.2M OHM 1/10W 5%
RES 3.92K OHM 1/4W 1%
RES 1.0K OHM 1/10W 1%
RES 3.3M OHM 1/10W 5%
RES 100 OHM 1/10W 5%
RES 100 OHM 1/10W 5%
RES 1.5K OHM 1/10W 5%
RES 1.0K OHM 1/10W 1%
RES 4.7K OHM 1/10W 5%
RES 16.2K 1/10 1%
24.9K OHM RES. 1/10 W 1% RM/10-2492B
RES 1.0K OHM 1/10W 1%
RES 3.92K OHM 1/4W 1%
RES 2.2M OHM 1/10W 5%
RES 3.92K OHM 1/4W 1%
RES 604K OHM 1/10W 1%
RES 1.0K OHM 1/10W 1%
RES 4.7K OHM 1/10W 5%
RES 15K OHM 1/10W 5%
RES 1.0K OHM 1/10W 1%
RES 2.2M OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 100 OHM 1/10W 5%
RES 15K OHM 1/10W 5%
RES 10K OHM 1/10W 5%
200 TRIM POT
35.7K OHM 1/10 WATT 1%
RES 1.0K OHM 1/10W 1%
RES 100 OHM 1/10W 5%
RES 10K OHM 1/10W 5%
RES 2.2M OHM 1/10W 5%
RES 470 OHM 1/10W 5%
RES 300 OHM 1/10W 5%
RES 1.5K OHM 1/10W 5%
RES 620 OHM 1/10W 5%
RES 1.0K OHM 1/10W 1%
RES 100 OHM 1/4W 5%
RES 2.0K OHM 1/10W 1%
RES 1.0K OHM 1/10W 1%
RM/10-1001B
RMP/4-3921-03
RM/10-225B
RM/4-3921C
RM/10-6043B
RM/10-1001B
RM/10-472B
RM/10-153B
RM/10-1001B
RM/10-225B
RM/10-301B
RM/10-101B
RM/10-153B
RM/10-103B
RVH-201
RM/10-3572B
RM/10-1001B
RM/10-101B
RM/10-103B
RM/10-225B
RM/10-471B
RM/10-301B
RM/10-152B
RM/10-621B
RM/10-1001B
RM/4-101C
R150
R151
R154
R156
R16
R163
R164
R165
R166
R167
R169
R17
RES 191K OHM 1/10W 1%
RES 0 OHM 1/10W
RES 9.09KOHM 1/10W 1%
RES 6.49K OHM 1/10W 1%
RES 2.0K OHM 1/10W 1%
RES 10K OHM 1/10W 5%
RES 9.76K OHM 1/10W 1%
RES 2.0K OHM 1/10W 1%
RES 2.0K OHM 1/10W 1%
RES 2.21K OHM 1/10W 1%
R170
R171
R172
R173
RM/10-2001B
RM/10-1001B
– 16 –
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C6
C60
C61
C62
C63
C64
C65
C66
C67
C69
C7
C70
C71
C72
C75
C76
C80
C81
C82
C83
C84
C85
C86
C87
C88
C9
CAP .001UF
.047UF 50V
CAP 120PF
CAP .1UF 50V
CDS-102CBAA
CYV-473-033
CDS-121CAAA
CYV-104-033
CDS-470CAAA
CYV-102-033
CYV-102-033
CDS-104CBBB
CDS-104CBBB
CDS-470CAAA
CDS-221CAAA
CYV-102-033
CYV-102-033
CYV-223-033
CYV-223-033
CYV-222-033
CDS-221CAAA
CDS-121CAAA
CYV-104-033
CDS-470CAAA
CDS-221CAAA
CER-106SM
R70
R71
R72
R73
R74
R75
R76
R78
R79
R8
R80
R81
R82
R84
R85
R86
R87
R88
R89
R9
R90
R91
R92
R93
R94
R95
R96
R97
R98
R99
RES 280 OHM 1/10W 1%
RES 10 OHM 1/10W 5%
RES 100 OHM 1/4W 5%
RES 2.21K OHM 1/10W 1%
RES 2.21K OHM 1/10W 1%
RES 100K OHM 1/10W 5%
619K OHM 1/10W 1%
RES 1M OHM 1/10W 5%
RES 1M OHM 1/10W 5%
POT 2K TRIM
RES 6.49K OHM 1/10W 1%
RES 6.49K OHM 1/10W 1%
46.4K OHM RES. 1/10 W 1% RM/10-4642B
RES 120 OHM 1/10W 5% RM/10-121B
46.4K OHM RES. 1/10 W 1% RM/10-4642B
RES 5.49K OHM 1/10W 1%
RES 1.62K OHM 1/4W 1%
RES 2.0K OHM 1/10W 1%
RES 2.21K OHM 1/10W 1%
POT 2K TRIM
RES 2.21K OHM 1/10W 1%
RES 9.09KOHM 1/10W 1%
RES 9.09KOHM 1/10W 1%
RES 3.32K OHM 1/10W 1%
RES 2.0K OHM 1/10W 1%
RES 3.24K OHM 1/10W 1%
RES 1.62K OHM 1/4W 1%
RES 1.33K OHM 1/4W 1%
RM/10-2800B
RM/10-100B
RM/4-101C
RM/10-2211B
RM/10-2211B
RM/10-104B
RM/10-6193B
RM/10-105B
RM/10-105B
RV-202
CAP 47PF 50V 5%
CAP .001UF 50V
CAP .001UF 50V
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP 47PF 50V 5%
CAP 220PF 50V 5%
CAP .001UF 50V
CAP .001UF 50V
CAP-022UF 50V
CAP-022UF 50V
CAP .0022UF 50V
CAP 220PF 50V 5%
CAP 120PF 50V 5%
CAP .1UF 50V
CAP 47PF 50V 5%
CAP 220PF 50V 5%
CAP 10UF 16V
CAP 3300UF 35V
CAP 3300UF 35V
CAP 47PF 50V 5%
CAP .47UF 50V
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP 47PF 50V 5%
CAP .1UF 50V 10%
CAP .1UF 50V
CAP 220PF 50V 5%
CAP 120PF 50V 5%
CAP 120PF 50V 5%
CAP .1UF 50V 10%
RM/10-6491B
RM/10-6491B
RM/10-5491B
RM/4-1621C
RM/10-2001B
RM/10-2211B
RV-202
RM/10-2211B
RM/10-9091B
RM/10-9091B
RM/10-3321B
RM/10-2001B
RM/10-3241B
RM/4-1621C
RM/4-1331C
CERS-338B
CERS-338B
CDS-470CAAA
CYV-474-033
CDS-104CBBB
CDS-104CBBB
CDS-104CBBB
CDS-470CAAA
CDS-104CBBB
CYV-104-033
CDS-221CAAA
CDS-121CAAA
CDS-121CAAA
CDS-104CBBB
24.9K OHM RES. 1/10 W 1% RM/10-2492B
RES 1.0K OHM 1/10W 1%
RM/10-1001B
C1
CAP 220PF 50V 5%
CAP 47PF 50V 5%
CAP 10UF 16V
CAP 3300UF 35V
CAP .47UF 50V
CDS-221CAAA
CDS-470CAAA
CER-106SM
C10
C11
C12
C14
C15
C16
C17
C18
C19
C2
C20
C202
C21
C22
C23
C24
C25
C26
C27
C28
C29
C3
C30
C31
C32
C34
C35
C36
C38
C39
C4
C40
C41
C42
C43
C44
C45
C46
C47
C48
C49
C5
CERS-338B
CYV-474-033
CYV-104-033
CERS-338B
CAP .1UF 50V
CR1
DIO DUAL BAV99L
BRIDGE RECTIFIER
DIO DUAL BAV99L
DIO MMBD914L
DIO ZENER MMBZ5240BL
DIO DUAL BAV99L
DIO DUAL BAV99L
DIO DUAL BAV99L
DIO MMBD914L
RD/GRN BICOLOR LED
DIO DUAL BAV99L
DIO MMBD914L
DIO MMBD914L
DIO MMBD914L
SS-260SM
SS-0799-068
SS-260SM
SS-803SM
SS-1052
SS-260SM
SS-260SM
SS-260SM
SS-803SM
SS-2423
SS-260SM
SS-803SM
SS-803SM
SS-803SM
SS-803SM
SS-260SM
CAP 3300UF 35V
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP 220PF 50V 5%
CAP .1UF 50V 10%
CAP 100PF 50V 5%
CAP 47PF 50V 5%
CAP .47UF 50V
CR10
CR11
CR13
CR14
CR15
CR16
CR2
CR22
CR3
CR4
CDS-104CBBB
CDS-104CBBB
CDS-104CBBB
CDS-221CAAA
CDS-104CBBB
CDS-101CAAA
CDS-470CAAA
CYV-474-033
CYV-474-033
CDS-104CBBB
CDS-104CBBB
CYV-104-033
CDS-104CBBB
CER-225CSM
CER-106SM
CAP .47UF 50V
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP .1UF 50V
CAP .1UF 50V 10%
CAP 2.2UF 50V
CR5
CR6
CR7
CR8
DIO MMBD914L
DIO DUAL BAV99L
CR9
CAP 10UF 16V
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP .1UF 50V 10%
CAP 10UF 16V
CDS-104CBBB
CDS-104CBBB
CDS-104CBBB
CER-106SM
Q10
Q11
Q12
Q13
Q14
Q15
Q16
Q17
Q18
Q19
Q2
Q21
Q22
Q23
Q24
Q25
Q26
Q27
Q28
Q29
XSTR MMBT3906LT1 PNP
XSTR MMBT5088L NPN
XSTR MMBT5088L NPN
XSTR MPS-A56
XSTR MMBT5088L NPN
XSTR NPN MPSA06
XSTR MMBT5088L NPN
XSTR MMBT5088L NPN
XSTR MMBT5087L PNP
XSTR MMBT3906LT1 PNP
Regulator LM317
XSTR MMBTA06L
XSTR MPS-A56R
XSTR NPN MPSA06
XSTR MMBT3904LT1 NPN
XSTR MMBT5088L NPN
XSTR MMBT5087L PNP
XSTR MMBT5088L NPN
XSTR MMBT5088L NPN
XSTR MPS6521
SS-0791
SS-0114
SS-0114
SS-101A-45
SS-0114
SS-102A-45
SS-0114
CAP .1UF 50V
CYV-104-033
CDS-101CAAA
CYV-222-033
CDS-470CAAA
CDS-470CAAA
CDS-104CBBB
CYV-102-033
CYV-102-033
CYV-102-033
CYV-102-033
CDS-221CAAA
CYV-103-033
CYV-103-033
CYV-102-033
CYV-102-033
CDS-221CAAA
CYV-473-033
CAP 100PF 50V 5%
CAP .0022UF 50V
CAP 47PF 50V 5%
CAP 47PF 50V 5%
CAP .1UF 50V 10%
CAP .001UF 50V
CAP .001UF 50V
CAP .001UF 50V
CAP .001UF 50V
CAP 220PF 50V 5%
CAP .01UF 50V
SS-0114
SS-0115
SS-0791
SS-1375
SS-102SM
SS-101A-45
SS-102A-45
SS-0792
SS-0114
SS-0115
SS-0114
SS-0114
SS-209
CAP .01UF 50V
CAP .001UF 50V
CAP .001UF 50V
CAP 220PF 50V 5%
.047UF 50V
– 17 –
Q3
Regulator LM337
SS-1376
SS-0114
SS-0114
SS-0791
SS-0791
SS-0791
SS-209
SS-0791
SS-0791
SS-102SM
SS-0791
SS-0791
SS-0792
Components marked with this symbol are safety critical
and should only be replaced with identical components.
Q30
Q31
Q32
Q33
Q35
Q37
Q38
Q39
Q5
XSTR MMBT5088L NPN
XSTR MMBT5088L NPN
XSTR MMBT3906LT1 PNP
XSTR MMBT3906LT1 PNP
XSTR MMBT3906LT1 PNP
XSTR MPS6521
XSTR MMBT3906LT1 PNP
XSTR MMBT3906LT1 PNP
XSTR MMBTA06L
Los componentes marcados con el simbolo son
imprescindibles para la protección del equipo, por lo
cual que solo sean reemplazados por los mismos
componentes.
Les componsants marqués du symbole
sont indis-
pensables à la sécuritée et ne peuvent être remplacés
qu'avec des composants identiques.
Q6
Q7
Q8
XSTR MMBT3906LT1 PNP
XSTR MMBT3906LT1 PNP
XSTR MMBT3904LT1 NPN
Bauteile, die mit einem
sehr wichtig und dürfen nur mit den orginal Ersatzteilen
ausgetauscht werden.
gekenzeichnet sind, sind
U1
U112
U2
U3
U4
U5
U7
U8
OPAMP TL072CD
OPAMP TL072CD
OPAMP TL072CD
OPAMP TL072CD
OPAMP TL072CD
COMPTR QUAD LM339
OPAMP TL072CD
OPAMP TL072CD
SS-143SM
SS-143SM
SS-143SM
SS-143SM
SS-143SM
SS-730SM
SS-143SM
SS-143SM
I componenti contrassegnati da
sicurezza e devono essere rimpiazzati solo con ricambi
di valore identico.
sono critici per la
DS1
DS12
DS4
DS8
SW SIDE ACT DIP 4 POS
SW SIDE ACT DIP 4 POS
SW SIDE ACT DIP 4 POS
SW SIDE ACT DIP 4 POS
SW-1649
SW-1649
SW-1649
SW-1649
J1
J2
CONN XLR NEUTRIK NC3FAH-2-0 CC-2339
RCA JACK, SINGLE WHITE, GOLD CCH-232
JW1
JW1
SH 2X3 JUMPER
HDR 6 PIN DUAL ROW
CC-648
CC-673
V120
VV120
RES 0 OHM 1/4W (JUMPER WIRE) RMP/4-0000-03
RES 0 OHM 1/4W (JUMPER WIRE) RMP/4-0000-03
6.5" Woofer
1" Tweeter
TRM6 MEHSA Bar
FG26387WP
SPK10424
WP-2439
AC6
CONN IEC POWER INLET
CC-1174
CHASS1
HARNESS P1000 CHASSIS GND FA-1401-A
FUSE 3A 3AG SLO BLO
FUSE HOLDER CAP 3AG
FS-003SB
FS-1175
FUSE HOLDER BODY PC MOUNT FS-1176
TS1
THERMISTOR 10K EPOXY
Power Switch
IEC Linecord
SS-0426-066
SHW9840
WIR9856
TT-2326-E
Transformer
MODEL: TRM6.1CE
(230 VAC 50/60 Hz)
RES 0 OHM 1/4W (JUMPER WIRE)
FUSEHOLDER CAP 5X20mm
5X20mm 0.8A SLO-BLO FUSE
European Linecord <HAR>
RMP/4-0000-03
FS-1269-A
FS-1484-A
WIR10138
– 18 –
TRM6.1 FUNCTIONAL BLOCK DIAGRAM
– 19 –
SERVICE REFERENCE
CIRCUIT OPERATION
Qualified Service Personnel Only
trans•ana Implementation
The transistor Q24 is configured to operate as a switch that controls the constant current source Q21 of the differ-
ential amplifier Q27 and Q28. Switch Q24 is under the control of the thermal and turn-on circuits, and provides a
Soft Start turn-on ramp according to the charging time of C70 through R13 and R156.
U8B is configured as a DC servo-integrator to null the output offset voltage. Class AB bias current is established by
Q29, and adjusted by R11.
The positive and negative input signals are conveyed to the pre-driver transistors Q25 and Q26 by the differential
amplifier Q27 and Q28, and by current mirror Q10 and Q19. Drivers Q22 and Q23 make the transition from the
low-voltage front-end circuit to the high-voltage output stage. Buffer transistors Q30 and Q32 enhance the front-end
drive current, and drive the positive output MOSFET Q20. The same is true for buffer transistors Q31 and Q33 and
negative output MOSFET Q4.
CALIBRATION
WARNING: Only a competent technician should attempt the following procedure.
Bias:
The bias control establishes the quiescent Class AB output current of the amplifier. The bias should not need read-
justment from the factory setting: however, if the amplifier is repaired and the output devices have been changed,
calibrating the bias is necessary. Disconnect the power to the amplifier before removing the heatsink assembly from
the speaker cabinet. To adjust the bias, remove the jumper JW1 and connect an ammeter across the exposed pins.
Adjust trimpots R11 and R9 fully counter-clockwise before reapplying power to the unit. After the Soft Start turn-on
has settled, note the ammeter reading. Adjust R11 until an additional 50mA is created. Then adjust R9 until another
50mA is added to the ammeter reading. Replace jumper JW1.
– 20–
Input Circuit
Qualified Service Personnel Only
The input signal is connected to the amplifier
through the balanced XLR connector J1, or the
unbalanced RCA connector J2. Balanced/unbal-
anced switch DS1 will ground the inverting input
buffer, allowing operation with an unbalanced
signal on either connector. Input buffers U1A and
U1B provide a stable input impedance, dominat-
ed by R10 and R4. The input circuit gain is set by
switches DS2-DS6. Each switch inserts a different
divider resistor for the feedback resistors R88 and
R169, resulting in up to 15dB of additional input
gain when DS6 is closed. Trimpot R8 adjusts the
common-mode-rejection of the woofer channel.
The non-inverting input signal from U1A pin 1,
and the inverting input signal from U1B pin 7, are
summed together to form an unbalanced signal at
U4A pin 1.
Tweeter Crossover
The balanced input signal at U1A pin 1 and U1B pin 7 connects to a 2-stage 39µs delay, using U3A and U3B. This
is followed by the high-frequency shelf circuit at U7B. Switches DS13-DS16 add various reactive components to
the feedback network of U7B, resulting in +4dB, +2dB, -2dB, or -4dB of gain shelving above 5kHz. The next stage
at U7A is a 3.2kHz 2nd order high-pass filter. The last stage consists of another 3.2kHz 2nd order high-pass filter,
bringing the overall tweeter crossover response to a 4th order 24dB/octave slope. The final components before the
tweeter amplifier (R104 and R105 ) can provide up to 2dB of additional gain to the tweeter channel.
– 21 –
Qualified Service Personnel Only
Woofer Crossover
The input signal at U4A pin 1 connects to the 3200Hz 2nd order low-pass filter at U112B. Approximately 2dB of
additional gain can be added to this stage by adjusting R136 against the divider resistor, R137. The next stage is a
30Hz–60Hz switchable sub-sonic high-pass filter. This is followed by an adjustable low-frequency shelving filter
which defaults at +6dB gain, according to the feedback resistors R129 and R134, and dividers R131 and R128.
DS9–DS12 will switch in various reactive feedback networks to accomplish +4dB, +2dB, -2dB, or -4dB of gain
shelving below 200Hz. The last stage is another 3200Hz 2nd order low-pass filter at U2A, which cascades with the
previous filter at U112B to produce an overall 4th order slope of 24dB/octave for the woofer amplifier.
Thermal Protection
The thermal protection is activated, and shuts down audio operation, when the amplifier heatsink reaches an exces-
sively high temperature. The voltage divider R22 and R23 establishes the reference voltage on pin 5 of U5B. The
control voltage on pin 4 is established by the voltage divider TS1 and R25. TS1 is a NTC (Negative Temperature
Coefficient) thermistor mounted on the heatsink. As TS1 warms and the resistance falls, the voltage on pin 4 rises.
When the voltage on pin 4 exceeds the voltage on pin 5, the output on pin 2 goes low, shutting down the Soft Start
switches Q8 and Q24, and lighting the CLIP/THERMAL indicator red.
– 22 –
Qualified Service Personnel Only
Clipping Indicator
The CLIP indicators are driven by the comparator U5A and U5D. The voltage divider R56, R57, and R51, R61
establishes the reference voltage for the Clipping detector at pin 7 of U5A and pin 9 of U5D. Excessive drive sig-
nal at pin 6 or pin 8 will trigger its comparator low and light the CLIP/THERMAL indicator red.
On Indicator
The bicolor LED, CR3, will remain green unless a THERMAL or CLIP condition is detected. The outputs of com-
parators U5A and U5D will be high, and Q35 will be off, allowing current to flow through the green LED of CR3
from ground to –17V.
– 23 –
Qualified Service Personnel Only
TWEETER REPLACEMENT
1. Remove (4) screws from wave guide using a 3/32" Allen Wrench
2. Remove wave guide assembly from enclosure
3. Disconnect the LED harness (FIG. 1)
4. Disconnect the (2) speaker wires from the tweeter (FIG. 2)
5. Disconnect the (2) power switch wires (FIG. 3)
6. Unclip the tweeter from wave guide (4 catch fingers)
7. Position the replacement tweeter into wave guide
8. Snap the tweeter into wave guide
9. Follow steps 1-5 in reverse order to install wave guide assembly
CAUTION: Reconnect wires as indicated in each diagram!
Wave Guide Assembly
FIG. 1
LED Harness
FIG. 2
FIG. 3
Power Switch
Tweeter Replacement #SPK10424
WOOFER REPLACEMENT
1. Remove (4) screws from woofer using a 3/32" Allen Wrench
2. Remove woofer from enclosure
3. Disconnect (2) speaker wires (FIG. 4)
4. Follow steps 1-3 in reverse order to install new woofer
CAUTION: Reconnect wires as indicated in each diagram!
FIG. 4
Woofer Replacement
– 24 –
Qualified Service Personnel Only
AMPLIFIER REPLACEMENT
1. Remove (2) screws from back using a 3/32" Allen Wrench (FIG. 5)
2. Disconnect PCB mounted LED harness (FIG. 6)
3. Disconnect PCB mounted tweeter speaker wires (FIG. 7)
4. Disconnect PCB mounted woofer speaker wires (FIG. 7)
5. Disconnect PCB mounted transformer primary wires (FIG. 8)
6. Disconnect PCB mounted transformer secondary wires (FIG. 8)
7. Disconnect PCB mounted power switch wires (FIG. 8)
Remove
only
these
(2) screws
CAUTION: Reconnect wires as indicated in diagram!
FIG. 5
Amplifier Replacement
FIG. 6
PCB Mounted LED Harness
FIG. 7
PCB Mounted Speaker Wires
FIG. 8
Transformer / Power Switch Wires
TRANSFORMER REPLACEMENT
The TRM6.1 is available both 120V and 230V
versions. If it is necessary to perform service on
the amplifier, be sure to check connections to the
transformer before re-applying power and/or re-
assembling the unit.
CAUTION: Reconnect wires as indicated in
diagram!
MODEL TRM6.1
120V 50Hz VAC
MODEL TRM6.1CE
230V 50/60Hz VAC
– 25 –
SERVICE POLICY AND LIMITED WARRANTY
Rockford Corporation (Hafler Division) offers a limited warranty on Hafler products on the following terms:
• Length of Warranty
1 year on Reference Monitors
• What is Covered
This warranty applies only to products sold to the original owner and is non-transferable. This warranty only
applies to units sold in the continental United States. You are required to have a copy of the receipt stating the cus-
tomer's name, dealer name, product purchased and date of purchase.
• Products found to be defective during the warranty period will be repaired or replaced (with product deemed to
be equivalent) at Hafler's discretion.
• What is NOT Covered
1. Damage caused by accident, abuse, improper operations, water, theft
2. Service performed by anyone other than Hafler or an Authorized Hafler service center
3. Any product purchased outside the United States (please contact your local dealer)
4. Shipping charges to get the unit to Hafler
5. Any product which has had the serial number defaced, altered, or removed
• Limit on Implied Warranties
Any implied warranties including warranties of fitness for use and merchantability are limited in duration to the
period of the express warranty set forth above. Some states do not allow limitations on the length of an implied
warranty, so this limitation may not apply. No person is authorized to assume for Hafler any other liability in con-
nection with the sale of the product.
• How to obtain service or technical support
Please call 1-800-669-9899 for Rockford/Hafler support. You must obtain an RA # (return authorization number)
to return any products to Hafler. You are responsible for shipment of product to Hafler.
Rockford Corporation
Hafler Division
2055 E. 5th Street
Tempe, Arizona 85281
– 26 –
HAFLER
A DIVISION OF
ROCKFORD CORPORATION
546 SOUTH ROCKFORD DRIVE
TEMPE, ARIZONA 85281 U.S.A.
1.866.GOHAFLER
480.967.3565
WWW.HAFLER.COM
MADE IN THE USA
This product is designed, developed and assembled in the USA by a dedicated
group of American workers. The majority of the components used in the con-
struction of this product are produced by American companies. However, due to
the global nature of their manufacturing facilities and the electronics parts indus-
try in general, some parts may be manufactured in other countries.
LIT 11382
11/00 E.W.R.
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