GFX-30
GUITAR AMPLIFIER WITH
DIGITAL SIGNAL PROCESSING
OWNER’S MANUAL
Congratulations!
You are now the proud owner of the Crate GFX-30 guitar amplifier. Featuring a
“Clean” channel with a 3-band EQ and Level control, and an “Overdrive” channel with
our patented “Flex-Wave” circuitry with Gain, Level and Crate’s Shape control, plus an
easy to operate DSP section which lets you dial in a variety of digital effects such as
delay, flange, chorus and reverb (with its own level control), the GFX-30 offers you more
flexibility and performance than any amp in its class. A special damping circuit simulates
the “current source” type output of a tube amp, giving you solid state reliability combined
with classic tube sounds.
Your GFX-30 is Musician Made in the U.S.A., using only the best components.
Extensive testing at the hands (and ears) of skilled technicians and musicians insures
you that this amplifier is the absolute best it can be.
In order to get the most out of your new amplifier, we strongly urge you to go over
the information contained in this manual before you begin playing.
And thank you for choosing
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GFX-30 Amplifier
10
11
12
13
14 15 16
11: DSP MODE: Select the type of digital
effect(s) desired with this control. Each cat-
egory and its central location is called out
(delay, flange, etc.) by the markings around
the control; there are two variations per
effect, as follows:
15: ON LED: The word “ON” will glow
when you turn on the GFX-30, showing you
that the amplifier is activated and ready to
play.
16: POWER SWITCH: Turns the amplifier
ON in the up position, off in the down posi-
tion.
• Slapback delay
• Long delay w/regeneration
• Light Flange
• Heavy Flange
• Slow Chorus
• Fast Chorus
• Chorus w/small room reverb
• Chorus w/large room reverb
• Small room reverb
• Large room reverb
17: POWER CORD (rear panel, not
shown): Your GFX-30 is equipped with a
heavy duty grounded three-wire power
cord. Be sure this cord is properly plugged
into a safely wired grounded 120 volt,
60Hz AC power outlet before use. (If your
GFX-30 was purchased outside the United
States, refer to the rear panel for power
ratings.) For your safety, never attempt to
defeat the ground connection on this cord.
12: FOOTSWITCH: Connect a two-button
footswitch (such as the Crate CFP-2) here
for remote control of the Channel Select
and DSP on/off.
18: FUSE (rear panel, not shown):
Protects the amplifier against damages
caused from a faulty AC power source or
other problems. If the fuse blows, replace it
ONLY with the same size and type fuse. If
the fuse blows repeatedly check the AC
source; if it’s okay, contact your Crate deal-
er for service information.
13. HEADPHONES: For private practice
sessions, plug a pair of stereo headphones
into this jack. The internal speaker is dis-
connected whenever headphones are
used.
14: SPEAKER*: Connect to an extension
speaker cabinet with this jack. The jack is
wired in series with the internal speaker(s).
*WARNING: DO NOT attempt to use
headphones in the Speaker jack!
Permanent hearing damage could result!
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GFX-30 Amplifier
GFX-30 TECHNICAL SPECIFICATIONS
Output Power Rating
>30 watts RMS @ 5% THD 4 ohms, 120VAC
Gain, Overdrive Channel
Gain, Clean Channel
86dB +/-6dB @ 1kHz
46dB +/-6dB @ 1kHz
Tone Control Range, Low
Tone Control Range, Mid
Tone Control Range, High
25dB @ 80Hz
19dB @ 900Hz
23dB @ 5kHz
Signal To Noise, Overdrive Channel
Signal To Noise, Clean Channel
>50dB
>65dB
Maximum Signal Accepted
Internal Speaker
>1.2 volts RMS min. @ 400Hz
12” Crate Custom Design 4 ohm
Input Power Requirements
120 VAC, 60Hz, 50VA
100/115VAC, 50/60Hz, 50VA
230VAC, 50/60Hz, 50VA
Size and Weight:
18.5” H x 19.5” W x 11” D, 20 lbs.
The GFX-30 is covered with a durable black Tolex material: wipe it
clean with a lint-free cloth. Never spray cleaning agents onto the
cabinet. Avoid abrasive cleansers which could damage the finish.
CAUTION
PRECAUCION
ATTENTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RIESGO DE CORRIENTAZO
NO ABRA
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOIS-
TURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS
O
DESCARGAS
LA
LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO.
ATTENTION: PROTÉGEZ CET APPAREIL DE LA PLUIE ET DE L'HUMIDITÉ
AFIN D'ÉVITER TOUT RISQUE D'INCENDIE OU D'ÉLECTROCUTION. POUR
REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE
PIECE INTERNE N'EST REPRABLE PAR L'UTILISATEUR. POUR TOUTE
REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.
ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO
A
LLUVIA
O
NO ABRA LA CUBIERTA. NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO
REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS.
IMPORTANT SAFETY INSTRUCTIONS
• READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.
• DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS. FOR
PROPER OPERATION, THIS UNIT REQUIRES 3” (75mm) OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR
FLOW PROVISIONS IN THE CABINET.
• DO NOT USE THIS APPARATUS NEAR SPLASHING, FALLING, SPRAYING, OR STANDING LIQUIDS.
• CLEAN ONLY WITH LINT-FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS.
• ONLY CONNECT POWER CORD TO A POLARIZED, SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND
COMPATIBLE WITH VOLTAGE, POWER, AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS.
• PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON, PINCHED, OR STRAINED.
• UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.
• ONLY USE ATTACHMENTS, ACCESSORIES, STANDS, OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE OPERA-
TION AND TO AVOID INJURY.
• THIS APPARATUS DOES NOT OPERATE NORMALLY AND REQUIRES SERVICE WITH ANY PHYSICAL DAMAGE FROM IMPACT OR
ANY EXPOSURE TO MOISTURE.
• SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL.
• OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND
PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS. USER CAUTION IS ADVISED AND EAR PRO-
TECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME.
EXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATION DES SYMBÔLES GRAPHIQUES:
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
“ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.”
"REFERREZ-VOUS AU MANUAL D'UTILISATION"
"DANGEROUS VOLTAGE"
“VOLTAJE PELIGROSO”
"DANGER HAUTE TENSION"
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Crate continually develops new products, as well as improves existing ones. For this reason, the
specifications and information in this Crate manual are subject to change without notice.
©1998 SLM ELECTRONICS, A DIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. 63133
P/N 47-454-01 • 03/02
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