Crate Amplifiers Musical Instrument Amplifier GFX 30 User Manual

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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