Bass Preacher Compressor / Sustainer

30% off for a limited time! New inventory ships 10/6/25

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Professor’s Notes
Designed by bass players for bass players, the Bass Preacher finally gives your bass tone the subtle shaping — or full-on squeeze — it deserves. Transparent when you want it, squashy when you don’t. Simple controls, powerful results.

Description
The Electro-Harmonix Bass Preacher is a compressor/sustainer built specifically to handle the wide dynamic range and deep frequencies of the bass guitar. Its input sensitivity spans from -10 dBu to +2 dBu, making it suitable for both passive and active basses.
With up to 21 dB of gain reduction and make-up gain to restore signal strength, this pedal gives you everything from subtle leveling to serious squash.
The Attack toggle switch offers three speeds (Fast, Medium, Slow) so you can capture transient pick attacks or smooth them out for a very even tone.
True bypass switching ensures your bass’s tone remains intact when the effect is off. Compact die-cast construction makes it pedalboard-friendly.

Specifications

• Type: Analog compressor/sustainer pedal
• Controls: Vol (make-up gain), Sustain (amount of compression), Attack toggle (Fast/Med/Slow)
• Bypass: True bypass
• Audio: Mono input/output
• Input Sensitivity: -10 dBu to +2 dBu (fit for passive & active bass)
• Max Gain Reduction: ~21 dB
• Power: 9 V battery included (optional 9.6 VDC-200 mA adapter not included)
• Current Draw: ~33 mA
• Dimensions: 4.5″ x 2.75″ x 2.1″
• Enclosure: Die-cast aluminium

What’s Included

• Electro-Harmonix Bass Preacher pedal
• 9 V battery (installed)
• Original packaging and documentation