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Owner's Manual
& Digital Signal Processing


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Congratulations!
You are now the proud owner of the Crate GFX-212T amplifier. This rugged amplifier com-
bines outstanding features with serious clean and distorted sounds. An easy to operate DSP sec-
tion lets you dial in a variety of digital effects including reverbs, delays, octave and wah-wahs ­ with
a spearate level control. Crate's unique Channel Tracking feature means that as you switch
between channels and gains, the DSP automatically "tracks" the changes - your DSP settings for
each channel are stored and automatically recalled! The supplied three-button footswitch allows
you to select channels, change the overdrive gain, and turn the DSP on and off by "remote control."
Like all Crate products, your GFX-212T is designed by musicians, and built using only the
best components. Extensive testing confirms 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 the informa-
tion contained in this manual before you begin playing.
And thank you for choosing
TABLE OF CONTENTS:
The Digital Signal Processor . . . . . . . . . . . . . . . . . . . . .3
Channel Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4, 5
Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . .7
Technical Specifications . . . . . . . . . . . . . . . . .back cover
GFX-212T Guitar Amplifier with DSP & Channel Tracking
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.
· 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.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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.
"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"
EXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATION DES SYMBÔLES GRAPHIQUES:
"DANGEROUS VOLTAGE"
"VOLTAJE PELIGROSO"
"DANGER HAUTE TENSION"
=
=
PRECAUCION
RIESGO DE CORRIENTAZO
NO ABRA
ADVERTENCIA: REDUCIR EL RIESGO DE FUEGO O CHOQUE ELÉCTRI-
CO, NO LE EXPONE DE ESTE APARATO A LLUVIA O 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.
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.


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The Digital Signal Processor:
Crate's Digital Signal Processing offers 16 exiting digital effects, accessible through the DSP
Mode control. The effects are described below.
3
GFX-212T Guitar Amplifier with DSP & Channel Tracking
Channel Tracking:
Your Crate GFX-212T gives you the power of Channel Tracking! Once you select a DSP setting
for each channel, Channel Tracking recalls those DSP settings automatically ­ without changing
the DSP controls! For example:
· Select the Clean channel. Set the DSP Mode to "FLNG 1" (slow flange + reverb)
· Select the Overdrive channel, Gain 1. Set the DSP Mode to "CHO 1" (slow chorus + reverb) (the set-
ting for the Clean channel is now saved to memory)
· Select the Overdrive channel, Gain 2. Set the DSP Mode to "T-WAH" (touch wah-wah) (the setting
for the Overdrive channel, Gain 1 is now saved to memory)
· Reselect the Clean channel (the setting for the Overdrive channel, Gain 2 is now saved to memory)
Now when you go back to the Clean channel, even though the DSP Mode was last set to "T-WAH,"
Channel Tracking automatically recalls the last setting for the Clean channel ­ in this example,
"FLNG 1." Change to the Overdrive channel, Gain 1, and "CHO 1" is recalled. Change to the
Overdrive channel, Gain 2, and "T-WAH" is recalled. That's the power of Channel Tracking!
(Note: Even when the power is turned off, Channel Tracking still retains the settings ­ until you change them!)
1
REV 1
small room reverb
2
REV 2
medium room reverb
3
REV 3
large room reverb
4
REV 4
concert hall reverb
5
DLY 1
short slapback + small room reverb
6
DLY 2
medium delay + plate reverb
7
DLY 3
long delay + large room reverb
8
FLNG 1
slow deep flange + reverb
9
FLNG 2
flange + reverb + delay
10
CHO 1
slow tremolo chorus + reverb
11
CHO 2
chorus + reverb + delay
12
RTRY
simulated rotating speaker effect
13
OCTV DN adds a signal one octave lower than input
14
T-WAH
touch sensitive wah-wah effect
15
I-WAH
inverse wah-wah effect
16
DBLR
simulated second track, slightly out-of-sync


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The Front Panel:
4
1
2
3
4
6
7
8
10
11
12
5
9
1: INPUT: Use this 1/4" jack to connect your guitar to the amplifier by means of a shielded instrument cable.
OVERDRIVE CHANNEL: A high gain channel giving you sounds from a slight edge to serious overdrive.
2: GAIN 1: Use this control to adjust the amount of light distortion for the Overdrive channel. Gain 1 pro-
duces less intense distortion than Gain 2 (#3) and is active when the Gain switch (#5) is in the out position.
3: GAIN 2: Use this control to adjust the amount of heavy distortion for the Overdrive channel. Gain 2 pro-
duces more intense distortion than Gain 1 (#2) and is active when the Gain switch (#5) is depressed.
4: SHAPE: Use this control to "dial in" the tone for the Overdrive channel when Gain 2 is selected. Rotating
the control counterclockwise enhances the mid frequencies, while rotating the control clockwise enhances
the low and high frequencies. This control is active only when Gain 2 is selected.
5: GAIN SELECT: Use this switch to select which gain control is active for the Overdrive channel. With the
switch in the out position, Gain 1 is selected. When the switch is depressed, Gain 2 is selected.
6: LOW: Use this control to adjust the low frequency level of the Overdrive channel.
7: HIGH: Use this control to adjust the high frequency level of the Overdrive channel.
8: LEVEL: Use this control to adjust the output level of the Overdrive channel.
9: CHANNEL SWITCH: Use this switch to select either channel. With the switch in the out position, the
Clean channel is selected. When the switch is depressed, the Overdrive channel is selected.
CLEAN CHANNEL: A normal gain channel designed to give you crystal clear sounds to medium distortion.
10: LEVEL: Use this control to adjust the output level of the Clean channel.
11: LOW: Use this control to adjust the low frequency level of the Clean channel.
12: MID: Use this control to adjust the midrange frequency level of the Clean channel.
13: HIGH: Use this control to adjust the high frequency level of the Clean channel.
14: DSP LEVEL: Use this control to adjust the amount of digital effect: in its full counter clockwise posi-
tion the signal will be "dry" (without any effect). As you rotate the control clockwise the amount of effect
increases.
15: DSP MODE: Use this control to select one of the 16 built-in digital effects. A listing of the effects is
shown on page 3 of this manual.
16: INSERT: Use this jack to connect an external effects device to the amplifier. Use a stereo 1/4" male Y
connector: ring = send, tip = return, sleeve = ground. (Refer to the illustration at the bottom of page 5.)
GFX-212T Guitar Amplifier with DSP & Channel Tracking


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5
13
14
15
16
17
19
18
17: EXTERNAL SPEAKER: Use this jack to connect the amplifier to an external speaker. The internal
speaker is disconnected when this jack is used. The minimum impedance for the external speaker is 4 ohms.
18: ON LED: This LED will illuminate when power is applied to the amplifier.
19: POWER: Use this switch to turn the amplifier on and off.
20: AC LINE CORD: (Rear panel, not shown:) This grounded power cord is to be plugged into a ground-
ed power outlet, wired to current electric codes and compatible with voltage, power, and frequency require-
ments stated on the rear panel. Do not attempt to defeat the safety ground connection.
21: FUSE: (Rear panel, not shown:) The fuse protects the amplifier from damages caused by a faulty AC
power source and/or other problems. If the fuse opens, replace it ONLY with the same size and type. If
fuses continue to fail, check the AC source ­ if the source is okay, contact your Crate dealer for service
information.
22: CHANNEL SELECT / GAIN FOOTSWITCH JACK: (Rear panel, not shown:) Use this jack to connect
the stereo 1/4" plug of the supplied three-button footswitch for remote control of channel selection and gain
selection.
23: REVERB FOOTSWITCH JACK: (Rear panel, not shown:) Use this jack to connect the mono 1/4" plug
of the supplied three-button footswitch for remote control of DSP on and off.
CONNECTING TO THE INSERT JACK:
The Insert jack (#16) allows you to
patch an external effects device
into the amplifier 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 two 1/4" mono
signal cables to connect the effect
as shown to the immediate right.
TIP
RING
SLEEVE
RETURN
SEND
GROUND
Stereo-to-mono Y-cord:
to Insert
jack
to Insert
jack
(STP201, 3'
STP202, 6'
STP203, 9')
(YPP117)
(1/4"-TO-1/4"
MONO CABLES)
to
effect
"OUT"
jack
to
effect
"IN"
jack
External Effect
TIP
RING
SLEEVE
Y-adapter and 2 cables:
External Effect
RING
RING
TIP
TIP
to
effect
"OUT"
jack
to
effect
"IN"
jack
GFX-212T Guitar Amplifier with DSP & Channel Tracking