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Boost · Jam Pedals

Jam Pedals Boomster mk2

The Boomster mk2 is a clean boost pedal with a high-fidelity buffer and 16dB of gain, featuring three different voicing modes and an expression pedal input for dynamic volume control.

  • 9-18V DC · center −
  • 50 mA
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from $279
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The rundown

Highlights

  • 16dB clean boost with high-fidelity buffer
  • Three voicing modes selectable via DIP switches
  • Expression pedal input for volume swells
  • Runs on 9-18V DC power
  • Compact size at 75.2 x 123.7 mm

Best for

Guitarists who need a transparent boost with tonal shaping options and dynamic control through an expression pedal.

Quick facts

Power
9-18V DC
Current draw
50 mA
Polarity
Center negative
Dimensions
75.2 × 123.7 mm
Expression input
Yes
Status
In production

Where to buy Jam Pedals Boomster mk2

$279 lowest new price · Reverb

Current offers
SellerConditionPriceLink
ReverbNew$279View
ReverbNew$279View
ReverbNew$279View
ReverbNew$279View

Prices last checked 22 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power does the Boomster mk2 require?

The Boomster mk2 runs on 9-18V DC at 50 mA with center-negative polarity.

Does the Boomster mk2 have an expression input?

Yes, the Boomster mk2 includes an expression pedal input for controlling volume.

How much boost does the Boomster mk2 provide?

The Boomster mk2 provides 16dB of clean boost.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.