GT-80D
QuadraDrive
tm
2
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.
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.
THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND 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: THIS UNIT IS 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 RECOMMENDED IF
UNIT IS OPERATED AT HIGH VOLUME. THE CHART BELOW SHOWS THE U.S. GOVERNMENT’S OCCUPATIONAL SAFETY AND HEALTH ADMINIS-
TRATION (OSHA) REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE, PER
29CFR1910.95, TABLE G-16:
ACCORDING TO OSHA, ANY EXPOSURE IN EXCESS TO THESE AMOUNTS LISTED ABOVE COULD RESULT IN SOME HEARING LOSS.
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
"REFERREZ-VOUS AU MANUAL D'UTILISATION"
"UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN"
EXPLANATION OF
GRAPHICAL SYMBOLS:
"DANGEROUS VOLTAGE"
"DANGER HAUTE TENSION"
"GEFAHLICHE SPANNUNG"
=
=
SOUND LEVEL DBA,
DURATION PER DAY
SOUND LEVEL DBA,
DURATION PER DAY
SLOW RESPONSE
IN HOURS
SLOW RESPONSE
IN HOURS
90
8
102
1 - 1 1/2
92
6
105
1
95
4
110
1/2
97
3
115
1/4 or less
100
2
Congratulations!
You are now the proud owner of one of the newest and most innovative guitar amplifiers available, the
Crate GT-80D QuadraDrive
tm
with Digital Sound Processing. This versatile and compact amplifier fea-
tures four separate, footswitchable Gain controls, with your choice of Tube or Solid State preamps for
either the Clean or the Overdrive channel. Discrete tones and Master Level controls for each channel,
along with Crate’s exclusive Tube Driven Mosfet power amp, add even more flexibility and control.
The easy to operate Digital Sound Processing section offers you a wide variety of effects, from some
of the finest reverb settings to the truly bizarre. A unique feature of the Digital Sound Processing is its abil-
ity to “remember” settings for each preamp and channel selection.
Like all Crate products, your GT-80D is proudly made in America, using only the best components.
Extensive testing at the hands (and ears) of skilled technicians and musicians insures you that this ampli-
fier 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 con-
tained in this manual before you begin playing
And thank you for choosing
TABLE OF CONTENTS:
About the GT-80D . . . . . . . . . . . . . . . . . . . . . . . . . . .3
The GT-80D Front Panel . . . . . . . . . . . . . . . . . . . . .4-6
The GT-80D Rear Panel . . . . . . . . . . . . . . . . . . . . . . .7
About the Digital Sound Processor:
Using the Mode Control . . . . . . . . . . . . . . . . . . . .8
Table of Settings . . . . . . . . . . . . . . . . . . . . . . . . . .9
Technical Description . . . . . . . . . . . . . . . . . . . . .10
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . .11
Some Suggested Settings . . . . . . . . . . . . . . . . . .12-13
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . .14
Technical Specifications . . . . . . . . . . . . . . . .back cover
