German maker Asparion has rounded out its modular D700 control-surface range with a rack-ready version: the D700 Rack. It answers a very concrete pro request — dropping a serious motorized surface into a flight case or a 19-inch rack without a DIY workaround. It’s listed at around $2,299.
What the rack format brings
The D700 Rack packs 16 high-resolution 100mm motorized faders — up to 4,000 steps, which is no footnote when you’re riding levels or automation with any finesse. Add 17 RGB rotary encoders with LED rings and 76 programmable LED buttons, all in a road-ready aluminum chassis.
Asparion’s whole pitch is modularity: the D700 Rack isn’t a fixed unit but one link in a system you extend by chaining modules, up to 64 motorized faders in total. You size the surface to the job — eight channels for a compact rig, several dozen for a control room or a post-production suite.
OSC and MQTT: more than a DAW controller
This is what sets the D700 apart from the pile of Mackie Control clones. Beyond MIDI, it speaks OSC and MQTT. In plain terms: you’re not limited to driving a DAW. You can address show-control systems, lighting, broadcast and PA — anywhere you need a reliable tactile interface to act on parameters remotely. That’s what takes it out of the studio and into the control room.
Here are the key specs of this rack version at a glance:
| Item | Spec |
|---|---|
| Faders | 16 × 100mm motorized, touch-sensitive, up to 4,000 steps |
| Encoders | 17 RGB rotaries with LED rings |
| Buttons | 76 programmable LED buttons |
| Protocols | MIDI, OSC, MQTT |
| Expansion | up to 64 faders by chaining modules |
| Format | 19-inch rack, aluminum chassis |
| Street price | around $2,299 |
My take
Let’s be clear about one thing: a control surface doesn’t change a single byte of your sound. You’re still fully in the box, and I’ve argued for years that in-the-box mixing is entirely viable. What an object like the D700 Rack changes is the gesture. Having spent years behind a console, the difference between grabbing eight real faders and clicking them one by one with a mouse was never cosmetic — it was speed, a physical relationship with the sound, and less fatigue over a long session. A well-built motorized surface is an ergonomics investment, not a tone investment — and it should be sold as exactly that, no hype.
The open questions are long-term fader durability and the quality of software integration — two areas where Asparion is staking its credibility against the established names. Worth pairing with two recent studio pieces: the portable Modular Audio Tools MAT 16X8 interface and our roundup of channel strips to color your tracks. Full details on the Asparion site.
