Crate Gfx-30 User manual

OWNER’S MANUAL

GFX-30 Amplifier

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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.Aspecial damping circuit simulates

the “current source” type output of a tube amp, giving you solid state reliability combined

with classic tube sounds.

Like all Crate products, 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

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.

Output Power Rating >30 watts RMS @ 5% THD 4 ohms, 120VAC

Gain, Overdrive Channel 86dB +/-6dB @ 1kHz

Gain, Clean Channel 46dB +/-6dB @ 1kHz

Tone Control Range, Low 25dB @ 80Hz

Tone Control Range, Mid 19dB @ 900Hz

Tone Control Range, High 23dB @ 5kHz

Signal To Noise, Overdrive Channel >50dB

Signal To Noise, Clean Channel >65dB

Maximum Signal Accepted >1.2 volts RMS min. @ 400Hz

Internal Speaker 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.

GFX-30 TECHNICAL SPECIFICATIONS

THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFEAND RELIABLE OPERATION. IN ORDER TO PROLONG THE LIFE OF THE

UNIT AND PREVENT ACCIDENTAL DAMAGES OR INJURY, PLEASE FOLLOW THESE PRECAUTIONARY GUIDELINES:

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT OPEN CHASSIS; DO NOT DEFEAT OR REMOVE THE GROUND PIN OF THE POWER

CORD; CONNECT ONLY TO A PROPERLY GROUNDED AC POWER OUTLET.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

CAUTION: NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

CAUTION: 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 PROTECTION IS RECOMMENDED IF UNIT IS

OPERATED AT HIGH VOLUME.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER.

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

"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"

"UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN"

EXPLANATION OF GRAPHICAL SYMBOLS:

EXPLICACION DE SIMBOLOS GRAFICOS:

EXPLICATION DES SYMBÔLES GRAPHIQUES:

"DANGEROUS VOLTAGE"

“VOLTAJE PELIGROSO”

"DANGER HAUTE TENSION"

"GEFAHLICHE SPANNUNG"

ATTENTION

RISQUE D'ELECTROCUTION

NE PAS OUVRIR

ATTENTION: 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.

VORSICHT

ELEKTRISCHE SCHLAGGEFAHR

NICHT OFFENEN

VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT

DEN DECKEL ABENHMEN. INTERNE TEILE KONNEN NICHT VOM

BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM

WARTUNGSPERSONAL ZU UBERLASSEN.

GFX-30

GUITAR AMPLIFIER WITH

DIGITAL SIGNAL PROCESSING

www.crateamps.com

P/N 47-454-01 • 06/98

1: INPUT: Connect your guitar here using

a shielded instrument cable.

OVERDRIVE CHANNEL: A high gain

channel giving you sounds from a slight

edge to serious overdrive.

2: GAIN: This control sets the amount of

compression and distortion from the ampli-

fier. With the control towards the far left,

the sound will have a thick compressed

quality. As you turn the control to the right

the amount of distortion increases. Crate’s

exclusive “Flex Wave” circuitry uses

sequential cascading gains to deliver dis-

tortion which is rich in harmonics and

“touch sensitive.” Use this control along

with the Shape and Level controls (#3 and

4) to create a wide variety of sounds.

3: SHAPE: To quickly “dial in” just the right

distortion sound, simply rotate the Shape

control until you find the sound you’re look-

ing for. Turning the control towards the left

enhances the mid frequencies; turning it to

the right enhances the low and high fre-

quencies.

4: LEVEL: Sets the output volume level

from the Overdrive Channel: in the far left

position there is no output; turning the con-

trol to the right increases the output. Use

this control along with the Gain and Shape

controls (#2 & 3) to create a wide variety of

sounds.

5: OVERDRIVE: When this switch is

pressed in the Overdrive Channel is

engaged. The Clean Channel is selected

when this switch is out. A footswitch (#12)

overrides this switch.

CLEAN CHANNEL: A normal gain channel

designed to give you crystal clear sounds.

6: LEVEL: Sets the output volume level

from the Clean Channel: in the far left posi-

tion there is no output; turning the control

to the right increases the output level.

7: LOW: Adjusts the low frequency output

level: to the left reduces the low frequency

output; to the right increases it. This control

allows a range of 25dB at 80Hz.

8: MID: Adjusts the mid frequency output

level: to the left reduces the midrange out-

put; turning it to the right increases it. This

control allows a range of 19dB at 900Hz.

9: HIGH: Adjusts the high frequency output

level: to the left reduces the high frequency

output; to the right increases it. This control

allows a range of 23dB at 5kHz.

10: DSP LEVEL: Adjust the amount of dig-

ital signal processing with this control: in

the full left position the output signal is

“dry” (no effect); rotating the control to the

right increases the amount of effect. The

DSP can be turned on and off with the sup-

plied footswitch.

GFX-30 Amplifier

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:

• 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

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.

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).

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.

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.

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.

1 2 3 4 6 7 8 10 11 12 13 14 15 165 9

*WARNING: DO NOT

attempt to use head-

phones in the Speaker

jack! Permanent hearing

damage could result!

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