CRATE GFX-30 1×12 Combo Guitar Amp with DSP Effects User Manual

: June 17, 2024
: CRATE

Table of Contents

GFX-30 1×12 Combo Guitar Amp with DSP Effects
GFX-30 Amplifier
GFX-30 TECHNICAL SPECIFICATIONS
Documents / Resources

GFX-30
GUITAR AMPLIFIER WITH
DIGITAL SIGNAL PROCESSING
OWNER’S MANUAL

GFX-30 1×12 Combo Guitar Amp with DSP Effects

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

GFX-30 Amplifier

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.
GAIN: This control sets the amount of compression and distortion from the amplifier. 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 distortion 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.
SHAPE: To quickly “dial in” just the right distortion sound, simply rotate the Shape control until you find the sound you’re looking for. Turning the control towards the left enhances the mid frequencies; turning it to the right enhances the low and high
frequencies.
LEVEL: Sets the output volume level from the Overdrive Channel: in the far left position there is no output; turning the control 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.
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.
LEVEL: Sets the output volume level from the Clean Channel: in the far left position there is no output; turning the control to the right increases the output level.
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.
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.
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.
DSP LEVEL: Adjust the amount of digital 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 an optional footswitch (see #12).
DSP MODE: Select the type of digital effect(s) desired with this control. Each category 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
FOOTSWITCH: Connect a two-button footswitch (such as the Crate CFP-2) here for remote control of the Channel Select and DSP on/off.
HEADPHONES: For private practice sessions, plug a pair of stereo headphones into this jack. The internal speaker is disconnected whenever headphones are used.
SPEAKER*: Connect to an extension speaker cabinet with this jack. The jack is wired in series with the internal speaker(s).
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.
POWER SWITCH: Turns the amplifier ON in the up position, off in the down position.
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.
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 dealer for service information.

WARNING : DO NOT attempt to use headphones in the Speaker jack!
Permanent hearing damage could result!

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| >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.

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.
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 PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME.

EXPLANATION OF GRAPHICAL SYMBOLS:”DANGEROUS VOLTAGE”
“IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL”

Crate continually develops new products, as well as improves existing ones. For this reason, the pecifications and information in this Crate manual are subject to change without notice.

www.crateamps.com
©1998 SLM ELECTRONICS, A DIVISION OF ST.
LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. 63133
P/N 47-454-01 • 03/02

Documents / Resources

| CRATE GFX-30 1x12 Combo Guitar Amp with DSP Effects [pdf] User Manual
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