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Bass Amplifier

CRATE

MXB25 TECHNICAL SPECIFICATIONS:

Output Power Rating

27 watts RMS @ 5% THD 4 ohms, 120 VAC

Maximum Input Signal Accepted

15 volts peak-to-peak

Input Impedance

220k ohms

Signal to Noise Ratio

75dB

Low Control 

28dB Range @ 60Hz

Low Mid Control 

15dB Range @ 400Hz

High Mid Control 

18dB Range @ 1kHz

High Control 

33dB Range @ 10kHz

Power Requirements

120 VAC, 60Hz, 45VA

100/115VAC, 50/60Hz, 45VA

230VAC, 50Hz, 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 specifications

and information in this manual are subject to change without notice.

www.crateamps.com

@2002 SLM Electronics, a division of St. Louis Music, Inc • 1400 Ferguson Avenue • St. Louis, MO 63133

18-432-01 • 04/02

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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