DrumPi mounted on a drum kit

USB sound expander for electronic drums

Play realistic drums.
Without a laptop.

DrumPi replaces your module's sound engine with properly recorded drums — every velocity, every round robin, no lag you can feel.

No soldering · Two boards · Ten minutes

DrumPi's mixer, with live meters
DrumPi's pad grid
  • Latency

    Under a millisecond

    Stick to speaker. Fast enough that you stop thinking about it and just play.

  • Round robins

    No machine-gunning

    A fast roll never fires the same sample twice, so repeated hits keep breathing.

  • Cost

    Under $200

    A complete module. Keep the pads, the rack and the module you already own.

It sits between your module and your ears.

Nothing about your kit changes. One USB cable in, audio out — and the sound engine you were stuck with is out of the picture.

  1. 01 — Your kit

    You hit the pad

    The same pads, cymbals and hi-hat pedal you already play.

  2. 02 — Your module

    It reads the hit

    Trigger curves and crosstalk rejection stay as they are, then it sends MIDI over USB.

  3. 03 — DrumPi

    It makes the sound

    Picks the right velocity layer and round robin, adds your EQ and reverb, and plays it.

  4. 04 — Your ears

    Straight out

    Audio out to headphones, monitors or the desk. No computer in the chain.

Signal chain

Keep your module. Replace its sound engine.

It was built to read pads, and it's good at it. DrumPi doesn't touch any of that — it takes over the moment the note leaves, over one USB cable.

Connection
USB MIDI
Output
Audio out to desk or headphones
Per instrument
EQ, compression, reverb send
Control
Any browser on your network
DrumPi wired to a Roland TD-15 module
Roland TD-15 (USB MIDI) → DrumPi

Hear it.

Play-throughs, the introduction, and the build guides.

Yamaha Recording Custom (1989) play-through1 / 4

The mixer lives in your browser.

There is no screen on the box, and nothing to install. Open a browser on your phone or laptop and the whole desk is there — a channel per microphone, with levels, EQ and reverb sends.

DrumPi's mixer

Load your own drums.

DrumPi Studio is the desktop tool for turning your own recordings into playable kits. Lay your mics out, mark the hits, set velocity ranges and round robins, export.

DrumPi Studio, building a kit from multitrack recordings

Two boards. Ten minutes.
Then just drums.

No soldering, and nothing to recalibrate.

Get in touch

Questions about compatibility, the build, or your own kits.

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