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Bass Amplifier

Congratulations!

You are now the proud owner of the compact but powerful Crate MXB25 Bass Amplifier. The small size

of this amplifier belies its big performance: the 10” Crate Custom speaker makes the most of the amplifier’s
27 watts of musical output power. A 4-band rotary EQ combined with Crate’s variable Contour control gives
you complete control over a wide variety of sounds. In addition, the front panel headphone and external
speaker jacks make this amplifier equally suited for practicing as well as perfoming in intimate surroundings.

Like all Crate products, your MXB25 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

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"

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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.

Summary of Contents for MXB25

Page 1: ...0 10 0 10 0 10 0 10 0 10 0 10 Bass Amplifier Owner s Guide for the CRATE CRATE CRATE ...

Page 2: ...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 LE...

Page 3: ...e 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 permanen...

Page 4: ...ped tone to a more up front live sound This control is only active when the Contour Active switch 5 is depressed 5 CONTOUR ACTIVE This switch when depressed activates the Contour con trol 4 6 LOW Use this control to adjust the bass response of the amplifier Rotating the control counterclockwise reduces the low frequency output Rotating the control clockwise increases the low frequency output The L...

Page 5: ...onnected when headphones are used CAUTION To avoid possible damage to your hearing do not use head phones for extended periods of time at extremely loud levels 13 SPEAKER Use this jack to connect the amplifier to an external speaker The internal speaker is disconnected when this jack is used The impedance the exter nal speaker must be 4 ohms or greater WARNING Do not attempt to use headphones in t...

Page 6: ...Bass Amplifier Suggested Settings 6 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 OUT IN IN IN Clean Blues Rhythm Lead ...

Page 7: ...Bass Amplifier System Block Diagram 7 0dB INPUT ACTIVE SHAPE 15dB INPUT GAIN MASTER VOLUME POWER AMP CONTOUR LO LO MID HI MID HI EQ LIMITER EXT SPEAKER HEAD PHONES ...

Page 8: ...Hz 45VA Speaker Size and Rating Crate Custom Design 10 30 watts Size and Weight 16 H x 15 W x 12 D 39 lbs The MBX25 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 would damage the finish Crate continually develops new products as well as improves existing ones For this reason the specif...

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