Both are made for dub and both play on the Akai MIDImix. DubStemMix goes inside the tune: every part on its own fader, to cut a new version of it, for free. Amp FreQQ is a sound-system preamp and dub station for finished stereo tracks.
Facts about Amp FreQQ come from reggaepreamp.com, checked in October 2026.
Why DubStemMix for a dub version
- Inside the tune: drums, bass, guitar, vocal… each on its own fader. Pull the vocal, keep the riddim, throw one snare hit into the echo: the moves of the dub engineer, not only of the selector.
- Stems from any song: no multitrack? The app splits the song into drums, bass, instruments and vocals, and prepares a whole set in one go.
- Free and open source: no licence, no activation, MIT. Read the code, change it, add your controller.
- Ready on the MIDImix: factory mapping, press SEND ALL, play: Install and plug in.
At a glance
| DubStemMix | Amp FreQQ | |
|---|---|---|
| What you play | the stems of one tune, up to 6 strips | stereo tracks on 2 decks, plus 4 audio inputs |
| Stem separation | built in | not part of it |
| Echo | tape delay, tempo sync, Space Echo heads, HOLD, ×2, tape stop | tape echo inspired by the HH Slider, two modes |
| Reverb | plate or spring, with CRASH | reverb |
| Preamp | stepped high-pass, 3-band kills, dubplate | 4-band isolator with kills, graphic and parametric EQ, resonant filter |
| Siren, samples | no | yes: siren with snapshots, 12-slot sample player |
| Akai MIDImix | factory mapping, nothing to set up | official support, overlays, LED feedback, MIDI learn |
| Platforms | macOS 15+, Apple Silicon | Windows and Mac |
| Price | free, open source (MIT) | from £125; £200 with MIDImix overlays; £310 with the controller |
What Amp FreQQ does well
A complete sound-system preamp in software: isolator kills, EQs, a resonant filter, an HH Slider style echo, a reverb, a siren and a sample player. It takes any source (files, turntable, CDJ, microphone, DJ software), and runs on Windows and Mac.
Which one for you
- Pick DubStemMix to build dub versions from the stems of a tune, on an Apple Silicon Mac, for free.
- Pick Amp FreQQ to play finished tracks or vinyl through a sound-system preamp, with a siren and samples, or on Windows.
They fit different moments: DubStemMix to cut and record dub versions from stems, Amp FreQQ to play finished tracks through its preamp.
Try DubStemMix
Free, one line in the Terminal, on an Apple Silicon Mac:
curl -fsSL https://raw.githubusercontent.com/yoanbernabeu/DubStemMix/main/install.sh | shThen follow your first dub, step by step: ten moves, from the stems to your recorded version.