For years, real-time Stems separation, the trick of splitting a track into vocals, drums, bass and melody on the fly, has been a laptop feature. Serato Stems and rekordbox stems both lean on a connected computer to do the heavy processing. Denon DJ just closed that gap: the PRIME 4 G2, unveiled September 1, 2026, renders Stems entirely onboard, no laptop tethered to the rig at all.

What actually makes this a first?

According to DJ LIFE Magazine, the PRIME 4 G2 packs an eight-core ARM processor with 4GB of RAM, four times the processing power of the original PRIME 4, and that extra horsepower is what lets it crunch Stems separation in real time without offloading the work to a computer. It's a standalone four-channel, four-deck system built for mobile, club, festival and event use, per Beatportal.

The rig also debuts 16 MPCe performance pads with velocity, pressure and 3D sensing, the first time multi-zone pads like this have shipped on standalone DJ hardware rather than a studio production controller. Pair that with 8-inch jog wheels carrying their own LED displays and a 10.1-inch HD touchscreen, and the PRIME 4 G2 reads less like an incremental refresh and more like Denon closing every remaining gap between a standalone unit and a laptop rig.

The PRIME 4 G2 is the first standalone DJ system to render Stems onboard, without a connected computer.

Why does onboard stems separation matter for DJs?

Mobile and club DJs have had a real reason to keep a laptop in the booth even after going standalone: stems needed one. That's gone now. Running Engine DJ software with stems support built in, the PRIME 4 G2 also streams directly over Wi-Fi from Amazon Music Unlimited, Apple Music, Beatport, SoundCloud Go+ and TIDAL, so a DJ can build a set, pull stems and mix lighting cues through the built-in SoundSwitch DMX control and 40-plus internal effects, all without opening a laptop lid.

Who is this actually built for?

At $2,599, the PRIME 4 G2 isn't a bedroom impulse buy, it's aimed squarely at mobile and club DJs who want the reliability of a fixed piece of hardware over a laptop-and-controller setup, plus festival and event operators who need something that boots, connects to streaming and just works.