Sub Machine Bass Pre

Nice boutique bass preamp to squeeze glorious tone from even the most tired pickups.

Tweak the biasing during set-up for your preferred amount of break up - ultra clean to plenty hairy.

External toggle to add even more bottom end oomph.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.

If you want the PCB without parts there's a link for that at the bottom of the page.

Partial kit: PCB, all board-mounted components), pots.

Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.

Enclosure (pre-drilled) is available as an option with full kits, and will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosure. Please choose appropriate knobs.

Inspired by: Zeibek Submarine Bass Preamp

Difficulty: Medium

PCB size: 50 x 35mm

Knobs required: 0/2

Enclosure: 1590B

Direct-Connect compatible (4-way)

Download the INSTRUCTION PDF