DMP 128 Plus – Digital Matrix Processors
12×8 ProDSP Digital Matrix Processors
Key Features
- Six models with 12 mic/line inputs and 8 outputs
- Twelve channels of AEC – acoustic echo cancellation
- Certified for Microsoft Teams Rooms
- Certified for Zoom Rooms
- Verified with Logitech RoomMate
- All models include a configurable USB Audio interface
- Dante audio networking with Dante Domain Manager and AES67 support provides a wide range of expansion capabilities, AT models only
- Up to eight VoIP lines that support generic Session Initiation Protocol – SIP 2.0 connectivity per RFC 3261
| Feature | Specification |
|---|---|
| DSP Engine | ProDSP™ 64-bit floating point; fixed low-latency |
| Analog Inputs | 12 mic/line inputs with phantom power on 1–8; gain −18 to +40 dB |
| Analog Outputs | 8 balanced/unbalanced outputs; >+21 dBu max |
| USB Audio I/O | Up to 4×4 channels (host PC audio + control) |
| VoIP Support | Up to 8 SIP channels (V model) |
| Dante Support | 48 inputs / 24 outputs (AT model), AES67 compatible |
| AEC | 12 channels (C models only) |
| Matrix Capability | Up to 84×48 routing matrix (analog, USB, Dante, EXP, virtual returns) |
| DSP Features | Gain, EQ, dynamics, delay, automixing, feedback suppression, ducking |
| Control | RS‑232, Ethernet (HTTP, Telnet, HTTPS, SSH), USB, ACP panel bus |
| Expansion Bus (EXP) | 16 bidirectional channels over CAT6 |
| Power & Cooling | 100–240 VAC, ~6–7 W typical; convection-cooled |
| Rack Form Factor | 1U full rack width, ~8.5″ deep |
| Compliance & Warranty | CE, UL, FCC, RoHS; 3-year unit warranty (Everlast PSU: 7 years) |
The Extron DMP 128 Plus is a next-generation 12×8 digital audio matrix processor featuring Extron’s ProDSP™ 64-bit floating point engine. It offers advanced audio routing and signal processing in a compact 1U, full-rack chassis.
Core analog I/O includes 12 balanced/unbalanced mic/line inputs (phantom-power on channels 1–8) and 8 line-level outputs, backed by full DSP processing per channel. USB-enabled models support up to four channels of digital audio I/O, recognized as a USB sound card. Optional variants provide VoIP support (up to eight SIP channels) and Dante audio networking with up to 48 Dante inputs and 24 outputs, plus Dante/AEC/VoIP integration as needed.
The architecture supports a large internal matrix: up to 84 inputs by 48 outputs, enabling flexible routing from analog, USB, virtual returns, Dante, or expansion ports and ACP panels.



