Dunlop MXR M287 User Manual
92503020774REVA
M287 SUB OCTAVE BASS FUZZ
M287 SUB OCTAVE BASS FUZZ
OUT
IN
The Sub Octave Bass Fuzz combines two different
fuzzes with a growling sub octave signal, featuring
an array of controls to fine-tune your sound,
including a separate Dry volume control to
ensure clean low end retention.
CONTROLS
1 BYPASS footswitch toggles
effect on/bypass (white LED
indicates on)
2 TREBLE knob cuts/boosts fuzz
signal’s high end frequencies
3 BASS knob cuts/boosts fuzz
signal’s low end frequencies
4 GAIN knob controls intensity of
fuzz signal
5 FUZZ switch toggles between
two fuzz modes
6 FUZZ knob controls volume of
fuzz signal
7 SUB OCTAVE knob controls
volume of sub octave signal
8 MID+ LEVEL knob sets amount
of dry signal’s midrange boost
9 DRY knob controls volume of
unaffected dry signal
10 OCTAVE footswitch toggles sub
octave signal on/off (blue LED
indicates on)
1 2 3 4 5 6 7 8 9 10
FUZZ
GAIN
BASS
TREBLE
SUB
FUZZ DRY
OCTAVE
MID+ LEVEL
OCTAVEBYPASS
DIRECTIONS
• Run a cable from your guitar to
the M287’s INPUT jack and run
another cable from the M287’s
OUTPUT jack to your amplifier.
• Set all knobs to their
12 o’clock position.
• Turn the pedal on by depressing
the BYPASS footswitch.
• Push the FUZZ switch to
choose between a bright
fuzz mode (indicated by blue
LED) that accentuates upper
frequencies and and a warm
fuzz mode (indicated by red
LED) that accentuates low end
fundamental frequencies.
• Rotate the FUZZ knob clockwise
to increase volume of fuzz
signal or counterclockwise
to decrease it.
• Rotate GAIN knob clockwise to
increase the intensity of the fuzz
effect or counterclockwise to
decrease it.
• Rotate the BASS knob clockwise
to boost low end frequencies or
counterclockwise to cut them.
• Rotate the TREBLE knob
clockwise to boost high end
frequencies or counterclockwise
to cut them.
• Engage the sub octave signal
by depressing the OCTAVE
footswitch.
• Rotate the SUB OCTAVE
knob clockwise to increase
volume of sub octave signal or
counterclockwise to decrease it.
• Rotate the DRY knob clockwise
to increase volume of dry signal
or counterclock wise to
decrease it.
• Rotate the MID+ LEVEL knob
to increase midrange boost or
counterclockwise to decrease it.
POWER
The Sub Octave Bass Fuzz is
powered by a 9-volt battery, a
Dunlop ECB003 9-volt adapter,
or the DC Brick™ and Iso-Brick™
power supplies.
SPECIFICATIONS
Input Impedance ~1M Ω
Bypass True Hardwire
Noise Floor >94dBV*
Output Impedance <1kΩ
Octave Fre quen cy -3dB a t 20 Hz to 80 Hz
Bandpass
Dry Gain -∞/+8.8dB
Mid Level
0 -> +15dB @ 420Hz w/ SW1 rt. p os.
0 -> +13dB @ 840Hz w /SW1 lef t pos.
Octave Gain -∞/+17dB @ 80Hz
Fuzz Gai n (Blue) -∞/+12.8dB @ 420Hz
Fuzz Gai n (Re d) -∞/+10dB @ 4.3kH z
Fuzz EQ
Power Requirements 55mA @ 9VDC
All measu rements made at 1 kHz, s peed at mid posit ion.
*A-weighted.
Bass -10dV -> +10dB @ 420Hz
Treble -10dB -> +10dB @ 4.3kHz
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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