Four decks, one real mixer
Up to four decks on a four-channel mixer: gain, a three-band EQ that kills fully at zero, filter and headphone cue per channel, keylock, and line faders the length of a real mixer's.
Now in pre-beta
DJ software for the Mac, adjusted by DJs.
Four decks, timecode vinyl, stems and any MIDI controller – written from scratch for macOS and Apple Silicon.
Free during the pre-beta · macOS 14.4 or newer · Apple Silicon
What it is
aDJusted is a DJ application for macOS. It reads the library you already have, works with the gear you already own and keeps the music going when the screen gets busy.
It is built by cYpher, a drum & bass DJ since the nineties, for real sets – and now open to DJs who want to help shape it. The audio engine runs apart from the interface, so a crowded screen never gets in the way of the sound.
Everything a set needs
Timecode vinyl
Serato and Traktor Scratch control records, in relative or absolute mode. A knock against the booth does not throw the track.
Any MIDI controller
Mappings for popular controllers come with the app. Everything else you teach once with MIDI learn or the mapping wizard – several controllers at the same time.
Stems on your Mac
Split a track into drums, bass, vocals and the rest on your Mac's own graphics chip – no internet connection, no upload.
The library you already have
Music app, Serato crates, rekordbox XML and crates of your own, in any combination. Your Serato files are never written to.
Beatgrids you can fix
An editor to set any beatgrid right by hand, in steps down to a single millisecond.
Effects, cues, loops, sampler
Three effect slots per deck from echo to bit crush, eight hot cues, loops that resize live, and 32 sample pads per deck.
Auto-Mix
Need a break? Auto-Mix picks the next track by tempo and blends decks 1 and 2 on its own.
Digital vinyl
Made for timecode vinyl
Play any deck from a turntable – with the control records you already have.
- Serato or Traktor Scratch. Both kinds of control record; both sides of the Serato record are recognised on their own.
- Relative or absolute. Relative takes speed and direction from the record. Absolute also reads the position: drop the needle anywhere and the track follows.
- A bump is not an instruction. When a knock throws the needle back a groove, the track notices nothing.
- The end of the record is not the end of the track. In relative mode the deck carries on internally at the speed the record was turning – the mix holds.
- See your signal. A scope per deck shows level and quality at a glance, so a loose cable or a quiet phono stage is found before the set.
- Four decks, two turntables. Each input pair can drive a front or a back deck.
Library
Your music, where it already is
No import, no copies. aDJusted reads your collection in place.
- Music app. Purchased and local tracks, straight from the Music app.
- Serato crates. Read directly, folders and all – with Serato's cues and colours, and without ever writing to your Serato files.
- rekordbox. Import the XML export with playlists, BPM, key, hot cues and beatgrids – and export crates back to rekordbox.
- Crates of your own. Folders and crates inside the app, filled by drag and drop.
Controllers
Bring your controller
No hardcoded list of supported devices.
- Mappings included. On first launch, pick the controllers you want mappings for – the one that is plugged in is already ticked.
- MIDI learn and wizard. Teach any control in a few clicks, or let the wizard walk you through a whole device.
- Several at once. Run a controller and a mixer side by side, each with its own mapping.
iPad
The iPad as a second desk
With the companion app aDJusted Remote, an iPad on the same Wi-Fi becomes a mixer with two jog wheels – in sync with the Mac, both ways.
- Mixer and jog wheels. Faders, EQ, filter, cue and crossfader, plus two platters: touch the top to hold and scratch, turn the rim to nudge.
- Pitch, pads and effects. A pitch fader per deck, hot cue and stem pads, the three effect slots and live BPM.
- The browser to hand. One swipe shows the Mac's crate tree and track list – drag a track onto a deck to load it.
- Local network only. Encrypted, not over the internet and not through us – and switched off until you switch it on.
System requirements
| Minimum | Recommended | |
|---|---|---|
| Mac | Apple Silicon (M1) – Intel Macs are not supported | M2 or newer |
| macOS | 14.4 Sonoma | the current macOS |
| Memory | 8 GB | 16 GB for four decks with stems |
| Storage | 2 GB free, plus room for stems | SSD with 50 GB free |
| Display | 1280 × 800 points | 1512 × 982 points or more |
| Audio | any Core Audio device | for timecode vinyl: an interface with four line inputs, input and output on the same device |
Questions
What does it cost?
aDJusted is in pre-beta and not for sale yet. Testers use it free of charge.
Can I play tracks from Apple Music or other streaming services?
Not from a subscription: Apple Music tracks are copy-protected, and no DJ app can reach their audio. Tracks you bought and files of your own work fine. Streaming services are an idea for later – not a promise.
Which timecode vinyl does it use?
Serato Control Vinyl and Traktor Scratch records, at 33⅓ or 45 rpm. Absolute mode needs a record with a position signal, which the Serato record has.
Will my controller work?
If it speaks MIDI, yes – with a mapping that comes with the app, or one you teach it once with MIDI learn or the wizard. If you build a mapping for a controller we do not have yet, we would love to have it.
Will it change my Serato or rekordbox library?
No. Serato files are only read; aDJusted keeps its own changes separately. rekordbox is read from its XML export, and written only when you export a crate yourself.
Why no Intel Macs?
Stem separation runs on the graphics chip of Apple Silicon. aDJusted therefore needs an M1 or newer.
Which languages does the app speak?
English and German – or whatever your Mac is set to.
Join the pre-beta
aDJusted is still in pre-beta: an early build for a small circle of testers. We are looking for DJs who want to play aDJusted in their own setup – and tell us what works and what does not. Send us a short e-mail; the button fills in the questions:
- What do you play?
- Your setup – turntables, controller, mixer, audio interface?
- Which Mac, which macOS?
- Where did you hear about aDJusted?
We use what you send us only to run the pre-beta. More in our privacy policy.