MXR M293 User manual
92503021632REVA
M293 BOOSTER MINI
M293 BOOSTER MINI
The MXR Booster Mini gives you the sonic secret
sauce of the Echoplex Preamp with the legendary
boosting power of the MXR Micro Amp in a
space-saving mini housing.
CONTROLS
1 TONE knob rolls off high
frequencies
2 VOLUME knob sets boost level
up to +25dB
3 FOOTSWITCH toggles effect
on/bypass ( blue LED
indicates on)
1
2
VOLUME
TONE
3
DIRECTIONS
• Run a cable from your guitar to
the M293’s INPUT jack and run
another cable from the M293’s
OUTPUT jack to your amplifier.
• Set the VOLUME and
TONE knobs to their fully
counterclockwise positions.
• Turn the effect on by
depressing the footswitch.
• Rotate the VOLUME knob
clockwise to increase gain, up
to +25dB.
• Rotate the TONE knob clockwise
to roll off high frequencies.
• To change the output of the
Echoplex Preamp circuit, remove
the M293’s bottomplate. Using
a trimpot adjustment tool, rotate
the internal TRIMPOT clockwise
to increase the circuit’s output or
counterclockwise to decrease it.
See Diagram A.
DIAGRAM A
POWER
The MXR Booster is powered
by the included Dunlop ECB003
9-volt adapter or the DC Brick™
and Iso-Brick™ power supplies.
SPECIFICATIONS
Input Impedance 800 kΩ
Output Impedance < 120 Ω
Max Inp ut Level +6 dBV
Max Output Level +20 dBV
Noise Floor* -82 dBV
Power Requirements 12.5 mA @ 9VDC
All measu rements made at 1 kHz, s peed at mid posit ion.
*A-weighted. Mi d position is +19.5 dB throu ghput gain.
(+19.5 dB gain )
DUNLOP MANUFACTURING, INC.
P.O. BOX 846 BEN ICIA , CA 94510 U. S.A .
TEL : 1-707- 745 -272 2 FA X: 1-70 7-745-2 658
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