Earthquaker Devices Scrolls Bass Odyssey Preamp Pedal

Category: Pedals and Effects
SKU: Y261478
In the shop since: May 15, 2026
Shipping: Free to the lower 48

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Earthquaker Devices Scrolls Bass Odyssey

A collaboration between EarthQuaker Devices and Kentaro Nakao.

Scrolls Bass Odyssey is a sonic pilgrimage through the entire universe of electric bass tone. From Motown to Metal and everywhere between and beyond. With a tube amp-like drive channel, an active EQ channel with three push-button switches for one-click tone sculpting, buffered parallel out, onboard effects loop, and balanced XLR out featuring just a splash of analog filtering to emulate a speaker cabinet, Scrolls is a powerful, modern tool that’s compact and versatile enough to be the only thing you need to play a session or show other than a bass.

EQ Controls

Drive Controls

Outputs

Specifications

Level: Output volume control when the EQ controls are active. Set the knob at noon for unity, turn clockwise to boost the output signal, turn counterclockwise to cut the output signal.
Vari: Boosts or cuts the Variable Frequency control. Position this control at noon for unity (marked with a center detent in the potentiometer.) Turn clockwise from noon to boost the Vari-Freq, or counterclockwise to cut.
Vari-Freq: Variable frequency control for fine-tuning your tone. Adjustable from approximately 20 Hz to 10 kHz.
Treble: The center position is flat and marked with a center detent in the potentiometer. All settings above this point boost the treble and all settings below cut treble.
Bass: The center position is flat and marked with a center detent in the potentiometer. All settings above this point boost the bass and all settings below cut bass.
Middle: The center position is flat and marked with a center detent in the potentiometer. All settings above this point boost the middle and all settings below cut middle.
Deep: 80 Hz Boost.
Process: Low-mid scoop for a more modern sound.
Bright: 5 kHz Boost
EQ Footswitch: Activates the EQ channel
Level: Output volume control for the Drive channel.
Blend: Blends between your clean signal with the Drive signal. Turn the knob fully clockwise for maximum crunchiness.
Drive: Controls the intensity of the overdrive.
Bandwidth: Determines where the clipping is most active. Turn the control counterclockwise to activate low-end clipping for a warmer, softer, rounded, and overall more subdued tone. Turn the control clockwise and activate High-end clipping for a present, focused crunch with a tighter low-end.
Tone: Low pass filter enabling you to shape the frequency of the Drive channel. Turn counterclockwise to reduce highs.
Drive Footswitch: Activates the Drive channel
Parallel Out: Buffered output carrying your clean signal that is always active. This allows you to route your clean signal to external destinations (amp, DI, separate pedal chain, tuner, etc.)
Direct Out: Balanced XLR out with a subtle amount of analog filtering added to the signal path to simulate the tonal characteristics of a bass speaker cabinet.
Ground Lift: Press for ground lift on the XLR output.
Effects Loop: Situated between the Drive and EQ stages. Hard-wired into the signal path and remains active at all times.