Rock Box

From the vendor

New for 2023 - dual PCB version with only 6 offboard wires to connect. No more nasty pot wiring.

Now available in two flavours, JTM45 and '59 Bassman.

What a beastly beauty. Full on distortion with a Boner Boost thrown in for good measure. Distortion and Boost sections are separately switched so you have full control over how much of this ridiculous gain you want at any moment.

Designed for 3mm resistors, but you can opt for 6mm if you want to save your eyesight and you're happy to mount them vertically on the PCBs.

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

Partial kit: PCB, all board-mounted components (not footswitches), 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: Box of Rock

Difficulty: Medium

PCB sizes: 99 x 31mm / 68 x 25mm

Knobs required: 4

Enclosure: 1590B

If you want the kit pre-built you must add the enclosure option below and select your knobs in the Components section. Check Specials for powder-coated enclosure availability.

Download INSTRUCTION PDF