Walrus Audio 385 Overdrive MKII User manual

*Only use a 9 volt DC, Center Negative, 100mA to power the pedal.
The use of an isolated power supply is recommended for powering all Walrus Audio Pedals.
Daisy chain power supplies are not recommended.
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The 385 Overdrive MKII is inspired by the vintage Bell and Howell®385 Filmosound™projector
that guitarists have modified and used as guitar amps for its unique breakup and tone. The 385
captures the amp’s charm by running internally at 18 volts* to help nail the same dynamic feel
and response to pick attack the amp has. Dig in and discover all the nuances the MKII has to offer.
And yes, the dynamics of the 385 sound great on bass too!
Bypass: Soft-touch, relay true bypass. Press the switch to
engage/disengage the pedal. LED indicates whether the
circuit is engaged or not.
A/B: The A/B switch allows you to have two separate volume
and gain settings. Use it like a preset to change the volume
and/or gain for specific parts! Press to swap between using
either A (White) or B (Red) Volume and Gain controls. LED
indicates which controls are being used - White for A, Red
for B.
Volume A: Controls the overall volume in the A setting. Turn
clockwise for more volume, and counter-clockwise for less
volume.
Gain A: Controls the overall gain in the A setting. Turn
clockwise for more gain, counterclockwise for less gain.
CONTROLSCONTROLS

Volume B: Controls the overall volume in the B setting.
Turn clockwise for more volume, and counter-clockwise
for less volume.
Gain B: Controls the overall gain in the B setting. Turn
clockwise for more gain, counterclockwise for less gain.
Treble: The Treble knob allows you to boost or cut treble
frequencies. When the knob is at noon, the response is
neutral. When you turn the knob down, you are cutting
treble. When you turn the knob up, you are boosting
treble. The Treble control is global and will apply to both
A and B settings.
Bass: Boost or cut bass frequencies. When the knob is at
noon, the response is neutral. When you turn the knob
down, you are cutting bass. When you turn the knob
up, you are boosting bass. The Bass control is global and
will apply to both A and B settings.
CONTROLSCONTROLS
385+ Switch: Adds an additional gain stage
at the front of the circuit for thick, saturated
gain with tons of sustain. Flip the switch up
to activate the 385+ mode. When the switch
is down, you are able to achieve classic 385
sounds.
Yellow pedal art by David Hüttner.
Black art by Josh Yosurack.
The die cast enclosure’s exact size is
2.62 x 4.77 x 2.25 inches including knobs.
Input: 1/4” TS, Unbalanced, 1M impedance
Output: 1/4” TS, Unbalanced, 10k impedance
True Bypass
SPECS
SPECS