Crate Amplifiers Musical Instrument Amplifier GFX 65 User Manual

GFX-65  
GUITAR AMPLIFIER WITH  
DIGITAL SIGNAL PROCESSING  
USER’S GUIDE  
Congratulations!  
You are now the proud owner of the Crate GFX-65 guitar amplifier. This rugged  
amplifier delivers serious clean and distorted sounds through its premium 12” Crate  
Custom speaker. An easy to operate DSP section lets you dial in a variety of digital  
effects such as delay, flange, chorus and reverb – with separate level control. Channel  
selection and Crate’s exclusive Shape circuit are controllable by the supplied two-button  
footswitch. An insert jack allows virtually noise-free connection of your favorite effects.  
Like all Crate products, your GFX-65 is designed by musicians and built 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 read this  
user’s guide before you begin playing.  
And thank you for choosing  
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GFX-65 Amplifier  
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1: INPUT: Connect your guitar here by means of  
a shielded instrument cable.  
7: HIGH: Use this control to adjust the high fre-  
quency output level of the Overdrive channel.  
This control allows an adjustment range of 10dB  
at 10kHz.  
OVERDRIVE CHANNEL: A high gain channel  
designed to give you sounds from a slight edge  
to serious overdrive.  
8: LEVEL: Use this control to adjust the output  
volume level of the Overdrive Channel. Use this  
control along with the Gain and Shape controls  
(#2, 3 & 4) to create a wide variety of sounds.  
2: GAIN 1: Use this control to adjust the amount  
of moderate compression and distortion for the  
Overdrive channel. With the control rotated fully  
counter clockwise the sound will have a thick  
compressed quality. As you rotate the control  
clockwise the amount of distortion increases.  
Gain 1 produces less intense distortion than  
Gain 2 and is active when the Gain Select switch  
(#5) is in the out position.  
9: CHANNEL SELECT: Use this switch to select  
the Clean channel (switch in the out position) or  
the Overdrive channel (switch depressed). A  
footswitch (#18) overrides this switch. The adja-  
cent LEDs indicate which channel is selected.  
CLEAN CHANNEL: A normal gain channel  
3: GAIN 2: Use this control to adjust the amount  
of intense compression and distortion for the  
Overdrive channel. With the control rotated fully  
counter clockwise the sound will have a thick  
compressed quality. As you rotate the control  
clockwise the amount of distortion increases.  
Gain 2 produces more intense distortion than  
Gain 1 and is active when the Gain Select switch  
(#5) is depressed.  
designed to give you crystal clear sounds.  
10: LEVEL: Use this control to adjust the output  
volume level of the Clean Channel.  
11: LOW: Use this control to adjust the low fre-  
quency output level of the Clean channel. This  
control allows an adjustment range of 22dB at  
80Hz.  
12: MID: Use this control to adjust the mid fre-  
quency output level of the Clean channel. This  
control allows an adjustment range of 14dB at  
600Hz.  
4: SHAPE: Working in conjunction with the Gain  
2 control, rotate the Shape control until you find  
the sound you’re looking for. Rotating the control  
counter clockwise enhances the mid frequen-  
cies. Rotating the control clockwise enhances  
the low and high frequencies. (Only affects Gain  
2 when active.)  
13: HIGH: Use this control to adjust the high fre-  
quency output level of the Clean channel. This  
control allows a range of 28dB at 10kHz.  
14: DSP LEVEL: Use this control to adjust the  
amount of digital signal processing. With the  
control rotated fully counter clockwise the output  
signal is “dry” (no effect). As you rotate the con-  
trol clockwise the amount of effect increases.  
5: GAIN SELECT: Use this switch to select Gain  
1 (switch in the out position) or Gain 2 (switch  
depressed). A footswitch (#18) overrides this  
switch.  
6: LOW: Use this control to adjust the low fre-  
quency output level of the Overdrive channel.  
This control allows an adjustment range of 11dB  
at 80Hz.  
15: DSP MODE: Use this control to select  
thedesired digital effect(s). Each category and  
its central location is called out (delay, flange,  
etc.) by the markings around the control..  
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GFX-65 Amplifier  
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18 19 20  
There are two variations per effect, as follows:  
22: FUSE (rear panel, not shown): The fuse  
protects the amplifier against damages caused  
by power overload conditions. If the fuse fails,  
replace it only with the same size and type fuse.  
If the fuse fails repeatedly check the AC source;  
if it’s okay, contact your Crate dealer for service  
information.  
• 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  
Connecting to the Insert jack:  
The Insert jack (#16) lets you patch external  
effects into the amplifier just prior to its power  
amp stage. Use Crate’s STP201, STP202 or  
STP203 stereo-to-mono Y-cord or an adapter  
such as Crate’s YPP117 and 2 1/4” mono signal  
cables to connect to the effect as shown below.  
16: INSERT: Use this jack to connect an exter-  
nal effects device to the amplifier. Use a stereo  
1/4” male Y-cord: ring = send, tip = return, sleeve  
= ground. See the illustration to the right for  
more information.  
Stereo-to-mono Y-cord:  
Y-adapter and 2 cables:  
17: EXT. SPEAKER: Use this jack to connect an  
extension speaker cabinet to the amplifier. This  
jack is wired in series with the internal speaker.  
TIP  
RETURN  
TIP  
RING  
to Insert  
jack  
to Insert  
jack  
RING  
SLEEVE  
SEND  
GROUND  
SLEEVE  
18: FOOTSWITCH: Use this jack to connect a  
two-button footswitch to the amplifier for remote  
control of the Channel Select and Gain Select  
settings.  
(STP201, 3'  
STP202, 6'  
STP203, 9')  
(YPP117)  
19: POWER ON LED: This LED illuminates  
when the amplifier is turned on.  
20: POWER SWITCH: Use this switch to turn  
the amplifier on (top of the switch depressed) an  
off (bottom of the switch depressed).  
21. POWER CORD (rear panel, not shown):  
The grounded power cord should only be  
plugged into a grounded power outlet that meets  
all applicable electrical codes and is compatible  
with the voltage, power and frequency require-  
ments stated on the rear panel. Do not attempt  
to defeat the safety ground connection!  
(1/4"-TO-1/4"  
MONO SHIELDED  
CABLES)  
to  
to  
to  
effect  
"IN"  
to  
effect  
"IN"  
effect  
"OUT"  
jack  
effect  
"OUT"  
jack  
jack  
jack  
External Effect  
External Effect  
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GFX-65 Amplifier  
GFX-65 TECHNICAL SPECIFICATIONS  
Output Power Rating  
65 watts RMS @ 5% THD 8 ohms minimum external load  
Speaker Size and Rating  
Input Impedance  
(1) Custom Design 12”, 8 ohms  
470k ohms  
Maximum Input Signal Level Accepted  
Total System Gain  
7 volts, peak-to-peak  
Overdrive Channel: 110dB all controls @10, Gain 2; 88dB Gain 1  
Clean Channel: 58dB all controls @10  
Overdrive Channel:  
Clean Channel:  
Low Control:  
Shape Control:  
High Control:  
11dB Range @ 80Hz  
Proprietary Circuit  
10dB Range @ 10kHz  
Low Control:  
Mid Control:  
High Control:  
22dB Range @ 80Hz  
14dB Range @ 600Hz  
28dB Range @ 10kHz  
Input Power Requirements  
Cabinet Size and Weight:  
120 VAC, 60Hz, 90VA  
100/115VAC, 50/60Hz, 90VA  
230VAC, 50/60Hz, 90VA  
17-1/2” H x 20” W x 11” D, 34 lbs.  
The GFX-65 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  
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
LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO.  
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 OPERATION AND TO AVOID INJURY.  
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS UNIT TO RAIN OR 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.  
©1997 SLM ELECTRONICS, A DIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. 63133  
P/N 47-475-01 • 030603  
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