OWNER’S MANUAL
GROOVE 1200
BASS AMPLIFIER
Congratulations on the purchase of your new Kustom amplifier! Your new GROOVE
1200 offers unsurpassed sound quality and performance characteristics. Inside this
manual you’ll find detailed information regarding the amplifier’s features. We wish you
many years of enjoyment with your Kustom GROOVE 1200.
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FRENCH
IMPORTANTES INSTRUCTIONS DE SECURITE
1. Lire avec attention toutes les recommandations et précautions
d'emploi avant d'utiliser ce produit.
Danger
2. Toutes les recommandations et précautions d'emploi doivent être
conservées afin de pouvoir s'y reporter si nécessaire.
3. Lire et comprendre tous les avertissements énumérés dans les
précautions d'emploi.
L‘exposition a des niveaux eleves de bruit peut provoquer une perte
permanente de l’audition, Chaque organisme humain reagit
differemment quant a la perte de l’audition, mais quasiment tout le
monde subit une diminution de I’acuite auditive lors d’une exposition
suffisamment longue au bruit intense. Les autorites competentes en
reglementation de bruit ont defini les expositions tolerees aux niveaux
de bruits:
4. Suivre toutes les précautions d'emploi pour utiliser ce produit.
5. Ce produit ne doit pas être utilisé près d'eau, comme par exemple
baignoires, éviers, piscine, sous-sol humides ... Etc.
6. Utiliser exclusivement un chiffon sec pour nettoyer ce produit.
7. Ne bloquér aucune ouverture de ventilation. Ne pas placer le
produit tout contre un mur ou dans une enceinte fernée, cela
gênerait le flux d'air nécessaire au refroidissement.
DURE EN HEURES PAR JOUR
8
6
4
3
2
1
INIVEAU SONORE CONTINU EN dB
90 93 95 97 100 103
8. Ne pas placer le produit près de toute source de chaeur telle que
radiateurs, arrivées d'air chaud, fourneaux ou autres appareils
générant de la chaleur (incluant les amplificateurs producteurs
de chaleur) .
Selon les autorites, toute exposition dans les limites citees ci-dessus,
peuvent provoquer certaines pertes d’audition. Des bouchons ou
protections dans l’appareil auditif ou sur l’oreille doivent etre portes lors
de l’utilisation de ce systeme d’amplification afin de prevenir le risque
de perte permanente de l’audition, Dans le cas d’expositions
superieures aux limites precitees il est recommande, afin de se
premunir contre les expositions aux pressions acoustiquese I evees
potentielIement dangeure u ses, aux personnes exposees aux
equipements capables de delivrer de telles puissances, tels ce
systeme d’amplification en fonctionnement, de proteger l’appareil
auditif.
9. Ne pas négliger la sécurité que procure un branchement polarisé
ou avec raccordement à la terre, Un branchement polarisé
comprend deux fiches dont l'une est plus large que l'autre. Un
branchement à la terre comprend deux fiches plus une troisième
reliée à la terre. Si la fiche secteur fournie ne s'insert pas dans
votre prise de courant. consulter un 'électricien afin de remplacer
votre prise obsolète.
10. Protéger le cordon d'alimentation de tout écrasement ou
pincement, particulièrement au niveau des fiches, des
réceptacles utilisés et à l'endroit de sortie de l'appareil. Ne pas
casser la fiche de terre du cordon d'alimentation.
ATTENTION
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR.
11. Utiliser uniquement les accessoires spécifiés par le constructeur.
12. Utiliser uniquement avec le chariot de transport, le support, le
trépied, la console ou la table spécifiés par le constructeur ou
vendus avec l'appareil. Lors de l'utilisation d'un chariot, bouger
avec précaution l'ensemble chariotlappareil afin d'éviter les
dommages d'un renversement.
ATTENTION: AFIN DE LlMlTER LE RISQUE DE CHO ELECTR/QUE, NE
PAS ENLEVER LE CHASSIS. NE CONTIENT PAS DE
PIECES POUVANT ETRE REPAREE PAR L’UTILISATEUR.
CONFER LE SERVICE APRES-VENTE AUX
REPARATEURS
13 Débrancher cet appareil lors d'orages ou s'il n'est pas utilisé
pendant une longue période.
CE SYMBOLE A POUR BUT D'AVERTIR L'UTILISATEUR DE LA PRESENCE
DE VOLTAGE DANGEREUX NON-ISOLE A L'INTERIEUR DE CE PRODUIT
QUI PEUT ETRE DE PUISSANCE SUFFISAMMENT IMPORTANTE POUR
PROVOQUER UN CHOC ELECTRIQUE AUX PERSONNES.
14. Des précautions doivent être prises afin qu'aucun objet ne tombe
et qu'aucun liquide ne se répande à l'intérieur de l'appareil par
les orifics de ventilation ou n'importe quelle autre ouverture.
15. Pour toutes interventions techniques s'adresser à un technicien
qualifié.L'intervention technique est nécessaire lorsque l'appareil
a été endommagé de n'importe quelle façon, comme par
exemple si le cordon secteur ou sa fiche sont détériorés,si du
liquide a coulé ou si des objets sont tombés à l'intérieur de
l'apparei1,si l'appareil a été exposé à la pluie ou à l'humidité, s'il
ne fonctionne pas normalement ou s'il est tombé.
CE SYMBOLE A POUR BUT D'AVERTIR L'UTILISATEUR DE LA PRESENCE
D'INSTRUCTIONS D'UTILISATION ET DE MAINTENANCE DANS LES
DOCUMENTS FOURNIS AVEC CE PRODUIT.
AFIN DE REDUIRE LES RISQUÉ D'INCENDIE ET DE DECHARGE
ELECTRIQUE, NE PAS EXPOSER CET APPAREILA LA PLUIE OU A
L'HUMIDITE.
16. ATTENTI0N:Pour réduire le risque d'incendie ou de choc
electrique ne pas exposer l'appareil à la pluie ou à l'humidité.
3
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Product Contents
These items are included with your GROOVE 1200 amplifier.
Be sure to contact your dealer if any items are missing.
GROOVE 1200 Amplifier
MUTE
SOLO
Footswitch
KAC-GFS100
Speaker Cable
KAC-GRVSCC
Footswitch Cable
OWNER'S MANUAL
Warranty Card
Owners Manual
4
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Quick Setup
Your GROOVE 1200 is ready to play right out of the box. After reviewing
this Quick Setup page, feel free to experiment with the controls and
create your own unique sound.
1
2
Set tone controls flat and Master Volume Control down.
Connect input, AC power cord, footswitch cable, and speaker cable. If using an
active bass, toggle the Active/Passive Switch to Active. If the Red Clip
Indicator lights while playing, toggle the Active/Passive Switch to Passive.
TUNER OUT
GROUND
LIFT
PRE EQ
1
MODEL: GROOVE 1200
POST EQ
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DIRECT OUTPUT
EFFECTS LOOP
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
MADE IN CHINA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SEND
RETURN
FOOTSWITCH
SPEAKER OUTPUT
Insert and twist
clockwise to lock.
Speaker
Cabinet
3
Turn on the Power Switch, adjust the Gain Control until the Green Signal
Indicator lights regularly, turn up Master Volume Control slowly, and start
playing.
5
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Front Panel
a Guitar Input Jack:
j High Control:
This is a 1/4" 2-conductor input jack for plugging
in your instrument. It is intended for bass guitar
but will accept other instruments as well.
Controls the amount of high frequency in the signal.
The Normal / Define Switch changes the center
frequency of this control. (See m)
b Active/Passive Switch
k Normal / Sub Switch:
Set this switch to Active when using an active bass
guitar. Setting to Active will lower the input gain
by 12 dB.
When this switch is set to Normal, the Bass
Control frequency is centered at 100Hz. When this
switch is set to Sub, the Bass Control frequency is
centered at 50Hz.
c Gain Control:
Adjust clockwise to increase the amount of preamp
volume. When set too low, the Signal Indicator
will not light.
l Normal / Shift Switch:
When this switch is set to Normal, the Mid
Control frequency is centered at 800Hz. When this
switch is set to Shift, the Bass Control frequency is
centered at 400Hz.
d Clip Indicator:
Indicates when the input signal has reached
maximum level. Note: The Active / Passive
Switch is the only control on the amplifier that has
an effect on this. If the switch is set to Active and
the Clip Indicator still lights, lower the output of
your instrument to correct.
m Normal / Define:
When this switch is set to Normal, the High
Control frequency is centered at 3KHz. When this
switch is set to Define, the High Control frequency
is centered at 5KHz.
n Graphic Equalizer Section:
This 9-band graphic equalizer is used to finely
adjust the sound to taste.
e Signal Indicator:
Indicates when sufficient signal is applied to the
preamp. Adjusting the Gain Control will affect
this.
o Master Volume Control:
Controls the overall output of the amplifier.
f Mute Indicator:
This indicator will light when the preamp is muted.
This can be done by either pressing the Mute
On/Off Button on the front panel or by pressing
Mute on the footswitch. Note: The Tuner Out
Jack will still be active when this is lit.
p Power Switch:
Turns AC power on and off.
q Solo Indicator:
Indicates when the Solo On/Off Button is pressed.
This will also light when Solo on the footswitch is
pressed.
g Mute On/Off Button:
When this switch is active the preamp will be
muted. However, the Tuner Out Jack is always
active.
r Solo On/Off Button:
When this is active, the signal to the power amp
will be boosted by 6dB.
h Bass Control:
s Power Jewel:
Controls the amount of low frequency in the
signal. The Normal / Sub Switch changes the
center frequency for this control. (See k)
Indicates when AC power is applied to the
amplifier.
i Mid Control:
Controls the amount of mid frequency in the
signal. The Normal / Shift Switch changes the
center Frequency for this control. (See l)
6
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Rear Panel
TUNER OUT
GROUND
LIFT
PRE EQ
MODEL: GROOVE 1200
POST EQ
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DIRECT OUTPUT
EFFECTS LOOP
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
MADE IN CHINA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SEND
RETURN
FOOTSWITCH
SPEAKER OUTPUT
t Circuit Breaker:
y Pre EQ / Post EQ Switch:
This circuit breaker will trip when too much
current is applied to the amplifier. To reset: Turn
off Power Switch, press circuit breaker button,
and turn the Power Switch on. Note: If the
Circuit Breaker trips repeatedly when AC power
is applied, take the amplifier to an authorized
service center for repair.
When set to Pre EQ, the Direct Output Jack signal
will be unaltered by the EQ sections of the preamp.
When set to Post EQ, the Direct Output Jack
signal will reflect the entire sound (including EQ
settings) of the preamp. Note: The Master Volume
Control and Solo On/Off Button have no effect on
the Direct Output Jack signal.
u Power Cord:
z Tuner Out Jack:
This supplies AC power to the amplifier. If the
cord becomes damaged, take the amplifier to an
authorized service center for repair.
Use this jack to connect to a tuner or other line level
device. This jack is always active and is a pre-gain
output.
v Speaker Outputs:
{ Effects Send Jack:
Use this jack to connect to the input of an external
effects processor. This jack can also be used as a
preamp out.
Use these jacks to connect the amplifier to
speaker cabinets using heavy duty Speakond
speaker cables. These jacks are connected
together internally. See Amplifier Loading
Chart (Page 8) for speaker cabinet loading
information. Note: To prevent overheating and
possible loss of signal, do not connect a load
lower than 2 ohms. (To connect a cable: Align tab
on speaker cable connector slot. Insert and twist
one quarter turn clockwise to lock. To remove a
cable: Pull back release button on cable connector,
twist connecter counter clockwise one quarter
turn, and pull out connecter.)
| Effects Return Jack:
Use this jack to connect to the output of an external
effects processor. This jack can also be used as a
power amp in.
} Footswitch Jack:
This 3-conductor 1/4” jack may be used for
connecting a footswitch to the amplifier
(Footswitch model KAC-GFS100 is included with
the amplifier). The footswitch will then control the
Mute and Solo features.
w Ground Lift Switch:
Activating this switch removes the ground
connection on the Direct Output Jack.
Removing the ground connection will eliminate
related signal hum.
x Direct Output Jack:
This is a line level output used to connect the
amplifier to another device, such as a mixer or
recorder.
7
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Speaker Connection Diagram
TUNER OUT
GROUND
PRE EQ
1
MODEL: GROOVE 1200
LIFT
POST EQ
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DIRECT OUTPUT
EFFECTS LOOP
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
MADE IN CHINA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SPEAKER OUTPUT
SEND
RETURN
FOOTSWITCH
Cabinet
Cabinet
A
B
Amplifier Loading Chart
Speaker cabinet
loads (ohms) applied
to the amplifier
Cabinet A’s Impedance (ohms)
open
open
16
8
5.33
5.33
4
3.20
2.67
2.67
2
open
16
16
8
5.33
4.00
3.20
2.67
2.29
2.00
1.60
4
3.20
2.67
2.29
2.00
1.78
1.60
1.33
3.2
2
1.78
1.60
1.45
1.33
1.23
1.14
1.00
16
8
8.00
5.33
4.00
3.20
2.67
2.29
1.78
4.00
3.20
2.67
2.29
2.00
1.78
1.45
2.67
2.29
2.00
1.78
1.60
1.46
1.23
2.29
2.00
1.78
1.60
1.46
1.34
1.14
8
Cabinet
B’s
Impedance
5.33
5.33
4
4
3.20
2.67
2
3.2
2.67
2
Total load on amplifier Note: To prevent overheating and possible loss of signal, do
not use any combination of cabinets that results in a box that is shaded.
This chart can help you determine what load (ohms) is present on the amplifier when using multiple cabinets.
- To use this chart with two cabinets (A and B), find cabinet A’s impedance (ohms) column and cabinet B’s
impedance row on the chart. The total load on the amplifier is shown in the box where they meet. For example: If
cabinet A’s impedance is 8 ohms and cabinet B’s impedance is 4 ohms, the total load on the amplifier would be 2.67
ohms.
- To use this chart with three or more cabinets, find the total load for two cabinets and then use the result for
cabinet A’s impedance column. The third cabinet will then be used for cabinet B’s impedance row on the chart.
Find the total load on the amplifier and repeat if more cabinets are used. For example (using 3 cabinets): If the first
cabinet (cabinet A) has an impedance of 16 ohms and the second (cabinet B) has an impedance of 8 ohms, the
total load would be 5.33 ohms. Using this load (5.33) as cabinet A’s impedance and a third cabinet’s (new cabinet
B) impedance of 4 ohms, you would find that the total load on the amplifier is 2.29 ohms. Note: It is not
recommended to use any combination of cabinets that has a resulting load in a shaded area of the chart.
Alternate Connection Diagrams
TUNER OUT
TUNER OUT
GROUND
PRE EQ
GROUND
LIFT
PRE EQ
1
MODEL: GROOVE 1200
MODEL: GROOVE 1200
LIFT
POST EQ
POST EQ
BREAKER
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DIRECT OUTPUT
EFFECTS LOOP
DIRECT OUTPUT
EFFECTS LOOP
ATTENTION
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE
PAS OUVRIR
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
2001124
SERIAL NUMBER
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
MADE IN CHINA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
DESIGNED IN USA
MADE IN CHINA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SPEAKER OUTPUT
SEND
RETURN
FOOTSWITCH
SPEAKER OUTPUT
SEND
RETURN
FOOTSWITCH
8 Ohms
8 Ohms
8 Ohms
8 Ohms
=
8 Ohms
8 Ohms
8 Ohms
8 Ohms
Total Load On Amplifier = 2 Ohms
Total Load On Amplifier = 2 Ohms
8
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GROOVE 1200
Specifications
Input Impedance
Output Power
200K Ohm
450 Watts
750 Watts
1200 Watts
8 Ohms @ 5% THD
4 Ohms @ 5% THD
2 Ohms @ 5% THD
Actual response is tailored to speakers for accurate acoustical
response using a bass guitar as input.
Residual Noise, all level controls 0% (minimum)
Preamp output
Frequency Response
Hum & Noise
20HZ-20kHz
-60db
27db
15db
25db
27db
32db
System Gain
Preamp output, Active
Tuner output
All measurements taken with 1 KHz
input signal, Tone controls flat, Gain and
Volume Maximum. Measured at effects
send output jacks on rear unless noted.
Direct output
Power amp gain
Amplifier Type
Footswitch
Class B
Descrete device Class B amplifier
Any non-momentary two-button foot switch can be used.
Use any standard tip-ring-sleeve cable
USA/Canada
Europe
120VAC/60Hz, 1500W nominal
230VAC/50Hz, 1500W nominal
Power Requirements
Dimensions
UK
230VAC/50Hz, 1500W nominal
Australia
Japan
240VAC/50Hz, 1500W nominal
100VAC/50-60Hz, 1500W nominal
89 (Height) x 483 (Width) x 390 (Depth), 14 kg
3.5 (Height) x 19 (Width) x 15.5 (Depth), 31 lbs
mm/kg
Inches/Pounds
Rack Mounting Instructions
The GROOVE 1200 was designed to mount into a standard 2-space rack. When mounting, use 4
screws to secure the amplifier to the rack. When using only one amplifier, use the bottom 2 spaces in the rack.
However, if more than one amplifier is used, leave one space open between the amplifiers to ensure proper
ventilation (shown below).
9
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10
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EC Declaration of Conformity
We:
Kustom Musical Amplification Inc.
4940 Delhi Pike
Cincinnati, OH 45238
Tel: 1-513-451-5000 Fax: 1-513-347-2192
Declare that the product
Product name:
Kustom
Product model number:
Groove 1200
to which this declaration relates is in conformity with the following standards;
EN55013 (A12) : 1995
Limits and methods of measurement of radio disturbance characteristics of broadcast receivers and
associated equipment.
EN55020: 1995
Electromagnetic immunity of broadcast receivers and associated equipment.
Limits for harmonic current emissions (equipment input current < 16A per phase).
EN61000-3-2: 1995
EN61000-3-3: 1995
Limitation of voltage fluctuations and flicker in low voltage supply systems for equipment with
rated currents < 16A.
EN55103-1: 1995
EN60065: 1994
Electromagnetic Compatibility - Product family standard for Audio, Video Audio-visual and
entertainment Lighting Control Apparatus.
Safety requirements for main operated electronic and related apparatus for household and similar
general use.
Following the provisions of EU Council Directive(s): 72/73 EEC and 89/336/EEC.
We the undersigned, hereby declare that the equipment specified above conforms to the aforementioned directive(s).
Name of authorized person: Rick Kukulies, VP Engineering
Signature:______________________
Date: 05 June 2001
Kustom Musical Amplification Inc. (BC Rich)
4940 Delhi Pike
Cincinnati, OH 45238
Tel: 1-513-451-5000 Fax: 1-513-347-2192
11
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Kustom Amplification Inc., 4940 Delhi Pike, Cincinnati, OH • USA
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