Earthquaker Devices Scrolls Bass Odyssey

The Earthquaker Devices Scrolls is a dual–footswitch bass preamp and overdrive designed to deliver both clean tonal shaping and saturated grit in a single enclosure. Two independent channels, Clean and Overdrive, can be engaged separately or stacked together for a wide range of tonal possibilities. The Clean channel provides transparent EQ sculpting with bass, treble, and presence controls, while the Overdrive channel adds harmonic saturation through a three–band EQ and dedicated gain stage. Switchable effects loop placement allows integration of external pedals before or after the preamp section.

Both channels feature independent level controls and active three–band EQ sections, with the Overdrive channel offering bass, middle, and treble adjustment alongside a dedicated gain knob. The presence control on the Clean channel adds high–frequency clarity without harshness. A global effects loop with send and return jacks can be assigned to sit before the preamp stage or in the traditional post–preamp position via an internal switch. True bypass switching ensures signal integrity when disengaged, and the pedal runs on standard 9V DC power with a centre–negative barrel connector drawing approximately 15mA.

Features

• Dual footswitchable channels with independent Clean and Overdrive preamps
• Three–band active EQ on Overdrive channel: bass, middle, treble controls
• Clean channel with bass, treble, and presence controls for tonal shaping
• Switchable effects loop placement: pre–preamp or post–preamp signal path
• Independent level controls for precise volume matching between channels
• True bypass switching maintains signal integrity when pedal is disengaged
• Standard 9V DC centre–negative power supply operation at 15mA current draw
• Effects loop with dedicated send and return jacks for external processing