Big Beefy Preamp - Boost and Overdrive

From the vendor

Sister circuit of the Acti-Boost (Type A and Type R), offering a lot more oomph for your signal . Baxandall active EQ circuitry to keep your tone clean and crisp, offering +/- 15db on bass and treble, and 30dB boost, ranging from clean sparkle to full-on overdrive. You can also opt for more bass-friendly caps, which change the frequency filtering at the input, and also adjusts the EQ control frequencies. This isn't a bass circuit, but can be used to great effect on your 4 (or 5)-string. We're now offering a log pot for the volume control, as the sweep of the original linear isn't great. 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 enclosures. Please choose appropriate knobs. Inspired by: B.B. Preamp Difficulty: Medium PCB size: 50 x 50mm Knobs required: 4 Enclosure: 1590B Direct-Connect compatible (4-way) Download theINSTRUCTION PDF