HiLo

Nice little utility box, offering high and low pass filters.

LPF is 12dB per octave with a range from 20kHZ to 330Hz.

HPF ranges from 25Hz to 190Hz with the same dB.

There's also a gain pot if you fancy a bit of oomph from your filtering, giving up to +20dB.

Power it at 9V, or give it 18V if you like some extra headroom.

Board-mounted pots for minimal wiring and easy enclosure mounting.

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, will not take a battery. Knobs are not included.

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

Inspired by: Broughton Low + High Pass Filter

Difficulty: Medium

PCB size: 50 x 40mm

Knobs required: 3

Enclosure: 1590B

Direct Connect compatible (4-way)

Download theINSTRUCTION PDF