Crate Amplifiers MX20RC User Manual

Congratulations!

You are now the proud owner of the compact but powerful Crate MX20RC amplifier. Two
versatile channels – one crystal clear and the other with our patented “Flex-Wave” distortion –
combined with reverb and a three-band EQ and a switchable Chorus offer you more flexibility
and performance than any amp in its class. Our “Flex Wave” circuitry uses sequential cascad­ing gains to deliver distortion which is rich in harmonics and is touch sensitive. Aspecial damp­ing circuit simulates the “current source” type of output of a tube amp, giving you solid state reli­ability combined with classic tube sounds.

Like all Crate products, your MX20RC 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 infor­mation contained in this manual before you begin playing.

And

thank you for choosing

TABLE OF CONTENTS:

Important Safeguards and Precautions . . . . . . . . . . . . . . . . . . . . .3

The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 , 5

Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . .back cover

CAUTION

RISK OF ELECTRIC SHOCK

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.

DO NOT OPEN

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.

IMPORTANTSAFETY INSTRUCTIONS

• READ, FOLLOW, HEED, AND KEEPALLINSTRUCTIONS AND WARNINGS.

• DO NOTOPERATE NEAR ANYHEAT SOURCE AND DO NOTBLOCK ANYVENTILATION OPENINGS ON THIS APPARATUS.

• DO NOTUSE THIS APPARATUS NEAR SPLASHING, FALLING, SPRAYING, OR STANDING LIQUIDS.

• CLEAN ONLY WITH LINT-FREE DAMPCLOTH AND DO NOTUSE CLEANING AGENTS.

• ONLY CONNECT POWER CORD TOA POLARIZED, SAFETY GROUNDED OUTLETWIRED TO CURRENTELECTRICALCODES AND

COMPATIBLE WITH VOLTAGE, POWER, AND FREQUENCYREQUIREMENTS STATED ON THE REAR PANELOF THE APPARATUS.

• PROTECTTHE 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 OPERA-

TION AND TOAVOID INJURY.

• THIS APPARATUS DOES NOTOPERATE NORMALLYAND REQUIRES SERVICE WITH ANY PHYSICALDAMAGE FROM IMPACTOR

ANY EXPOSURE TO MOISTURE.

• SERVICE MUSTBE PERFORMED BYQUALIFIED PERSONNEL.

• OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND

PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENTOR LOSS. USER CAUTION IS ADVISED AND EAR PRO­TECTION IS RECOMMENDED IF UNITIS OPERATED ATHIGH VOLUME.

EXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATIONDESSYMBÔLESGRAPHIQUES:

"DANGEROUS VOLTAGE"

=

“VOLTAJE PELIGROSO”
"DANGER HAUTE TENSION"

PRECAUCION

RIESGO DE CORRIENTAZO

NO ABRA

ATTENTION

RISQUE D'ELECTROCUTION

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"

NE PAS OUVRIR

Important Safeguards and Precautions:

All Crate products are designed for continuous safe operation.
Abiding by the following rules can help prevent damage to your
amplifier, yourself and others.

• The amplifier is equipped with a three-pronged AC power
cord. To reduce the risk of electrical shock, NEVER remove
or otherwise attempt to defeat the ground pin of the power
cord.

• Connect the amplifier ONLY to a properly grounded AC
outlet of the proper voltage for your amp.

• Avoid sudden temperature extremes, rain and moisture.
Also, avoid sudden and intense impact. (If the unit has
been subjected to any of the preceding abuses, have it
looked at by an authorized service center.)

• Do not expose the unit to splashing or dripping liquid. Do
not place liquid filled objects on the unit.

• NEVER set the amplifier on a support that will not bear its
weight.

• Always keep the total speaker impedance at or above the
rated load.

• Unplug the amplifier before cleaning it. NEVER spray liquid
cleaners onto the amplifier. Wipe it with a slightly damp­ened, lint-free cloth to remove dirt and film.

• DO NOT use the amplifier if it has sustained damage to the
chassis, controls, or power cord. Refer the unit to an
authorized service center for inspection.

• Prolonged exposure to high volume levels may cause per­manent hearing loss or damage. Such damage is progres­sive and irreversible!

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