Description
Technical
Specifications
Processing
| Architecture | Two-part system coupled over a CAN bus: the DSP Frame (I/O modules, DSP audio engine, control engine, power supply) and the mixing console surface (faders, encoders, buttons, displays) |
|---|---|
| Modularity and expansion | Fully modular surface; up to 10 fader modules (RM420-020 / RM420-029); Penny & Giles faders, Lumitas keys; module mounting depth: 72 mm |
| Processing engine | Slot-based frame (e.g. RM420-063, 30 slots): AES3 in/out, MADI (RM420-848M), mic/line, analogue in/out modules, DSP controllers (Ethernet, RS422), redundant power supplies |
Surface
| Motorized faders | Optional |
|---|---|
| Touchscreen | No |
| Screens | Display modules; optional TFT screen on the surface |
Recording
| Onboard recording | No |
|---|
Networking
| Networking & protocols | MADI / AES/EBU / Network |
|---|---|
| Redundant PSU | Yes |
| Redundant networking | No |
Other
| Broadcast features | Input routing and processing, mic processing, bus assignment, monitoring, talkback, signalling and On-Air switching, clean feed / mix-minus generation, output routing, save/recall of setups |
|---|
Strip & details
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Diagrams
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Software
DHD ToolboxConfiguration software for DHD systems (including the RM4200D): editing the mixer structure, I/O, routing and processing, then transferring to the DSP Frame.Download
RM4200 Route (RM420-910)Download
Other screenshots
Documents
Editorial & artists
Our take
History & design
The DHD RM4200D is a modular digital audio mixing and routing system introduced around 2003 by the German manufacturer DHD (Deubner Hoffmann Digital), aimed at radio and TV studios. It is now discontinued (legacy support).
The system comprises two parts linked by a CAN bus. The DSP Frame houses the input/output modules, the DSP audio engine, the control engine and the power supply. The mixing console is the user interface with its faders, encoders, buttons and displays. The surface is fully modular (up to ten fader modules RM420-020 / RM420-029, Penny & Giles faders and Lumitas keys), with a 72 mm mounting depth.
The slot-based DSP frame (for example the 30-slot RM420-063) accepts AES3 in/out, MADI (RM420-848M), mic/line and analogue modules, DSP controllers (Ethernet, RS422) and redundant power supplies. Functionally, the RM4200D covers input routing and processing, mic processing, bus assignment, monitoring, talkback, signalling and On-Air switching, clean feed / mix-minus generation, output routing and save/recall of setups.
Links
Related consoles
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