Shush Preamp

Do your tube amp a favour...

Bringing you all the goodness of the preamp from the Echoplex EP-3 in a handy sized box.

Internal charge pump gets you 22V of headroom from your 9V supply, ready to boost your signal with three different flavours of EP tone - bright, dark and mid. There's something there to suit anyone's setup.

Bit of a weird level setup on this one, reaching max boost at around 2 o'clock and winding back down a bit towards the end of the turn with the EQ flattening off. It just works.

The kit is supplied with a vertical-mount pot which has a round shaft, so you'll need a set-screw fitting knob.

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, pot.

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 partial kits, and will not take a battery. Knob is not included.

Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs.

Inspired by: Secret Preamp

Difficulty: Medium

PCB size: 50 x 33mm

Knobs required: 1

Enclosure: 1590B

Direct-Connect compatible (4-way)

Download the INSTRUCTION PDF