Crate CA120D User Manual
CA120D
Acoustic Amplifier
User’s Guide
CA120D Acoustic Amplifier
Table of Contents:
IMPORTANT SAFETY INSTRUCTIONS
• READ, FOLLOW, HEED, AND KEEPALL 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”
(75CM) 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 BYTHE 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 PERMA-
NENT 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
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPARATUS TO RAIN OR MOISTURE. TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
PRECAUCION
RIESGO DE CORRIENTAZO
NO ABRA
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO A LA 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.
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
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.
"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 SYMBÔLESGRAPHIQUES:
"DANGEROUS VOLTAGE"
“VOLTAJE PELIGROSO”
"DANGER HAUTE TENSION"
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Declaration Of Conformity
#33, Effective 01-01-2001
Manufacturer’s Name: SLM Electronics
Production Facility: 1901 Congressional Drive, St. Louis, MO 63146, USA
Production Facility: 700 Hwy 202 W, Yellville, AR 72687, USA
Shipping Facility: 1400 Ferguson Ave., St. Louis, MO 63133, USA
Office Facility: 1400 Ferguson Ave., St. Louis, MO 63133, USA
Product Type: Audio Amplifier
Complies with the following Standards:
Safety: EN60065, E60065, C22.2, UL6500 and/or UL813
EMC: Directive 89/336/EEC, EN55103, EN55013, EN61000,
and/or FCC 47CFR 15B clA
Supplementary information provided by:
SLM Electronics - R & D Engineering
1901 Congressional Drive, St Louis, MO 63146, USA
Tel.: 314-569-0141, Fax: 314-569-0175
2
About the Crate Acoustic CA120D . . . . . . . . . . . . . . . . . 3
The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
The Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
To Eliminate Instrument Feedback . . . . . . . . . . . . . . . . . 6
The DSP Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical Specifications. . . . . . . . . . . . . . . . . . back cover
CA120D Acoustic Amplifier
3
About the Crate Acoustic CA120D:
D
esigned for the performing artist,
Crate’s CA120D Acoustic Amplifier
gives you more of what you want.
More power. More clarity. More control. And,
more freedom. Imagine: microphone quality
sound, without feedback. And without being
“chained” to a mic stand!
More power: a 120 watt RMS power amplifier drives a Studio Monitor-style 12” subwoofer for plenty of volume and low end
punch.
More clarity: a specially designed tweeter
provides clean crisp highs and natural midrange blend. A tweeter level control allows
you to adjust the high frequency output to
suit your taste.
More control: two separate channels, each
with its own gain, tone, and reverb/effects
controls. An automatic feedback elimination
circuit with two filter select controls lets you
kill feedback without sacrificing sound quality. The filters can be controlled by means of a
footswitch provided with the unit.
A pair of CD Input jacks allows you to play
along with a compact disc, cassette tape, or a
rhythm machine.
Still more: Footswitch jacks on the rear
panel provide control for the feedback circuit
as well as two “tracking” DSP presets. Levelcontrollable XLR and 1/4” balanced line outs
allow you to patch into house sound boards
or recording consoles, plus an effects loop
line-in/line-out setup allows connection of
external effects. An external speaker jack lets
you connect the amplifier to another separate
speaker cabinet.
Enough already? Not for us. The CA120D
features Crate’s Digital Signal Processing (DSP)
for a variety of digital reverbs, effects and
delays specifically designed for acoustic
instruments.
The CA120D was designed, evaluated, and
tweaked by music loving engineers. Each
amplifier is produced by skilled assemblers
using sophisticated assembly machines and
the finest components. Trained craftsmen
assemble and cover every cabinet by hand.
The finished product is tested – and played –
by skilled musicians/technicians. It is only
after the amplifier has passed this meticulous
design/assembly/performance/approval
process that we allow it to be shipped to our
customers.
The CA120D Acoustic Amplifier. Designed
to be the best, so you can sound your best!
To get this amplifier to sound its best,
read this owner’s guide prior to its use.
To keep this amplifier looking its best, avoid
abrasive cleansers. Wipe the cabinet clean
using a slightly dampened cloth. Never use
brass cleaners on the hardware since they
could damage their protective coatings.
Crate Acoustic amplifiers are Made With Pride in the U.S.A.
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