Extron DMP 128 Plus C 12x8 ProDSP Processor w/AEC

Product Overview

The Extron DMP 128 Plus Series is a family of 12x8 digital matrix processors built on the ProDSP 64-bit floating point processing platform. Six models provide 12 mic/line inputs, 8 line outputs, USB audio, and configurable aux channels — with C models adding 12-channel AEC, AT models adding Dante audio networking, and V models adding up to 8 SIP 2.0 VoIP lines. Available from Creation Networks.

Product Description

The DMP 128 Plus Series is designed for conference rooms, training facilities, and multi-room AV systems that require professional-grade audio signal processing, conferencing capabilities, and flexible routing. All models feature 12 balanced/unbalanced mic/line inputs (8 with 48V phantom power), 8 balanced/unbalanced line outputs, a configurable USB audio interface, an EXP port for linking two DMP 128 Plus units over shielded CAT 6, and an ACP port for Extron audio control panels. The ProDSP engine provides 64-bit floating point processing at 24-bit/48 kHz with automixing (gated and gain-sharing, up to 8 groups), EQ, dynamics, delay, adaptive gain, ducking, loudness, and feedback suppression. C models (DMP 128 Plus C, C AT, C V, C V AT) add 12 independent channels of high-performance AEC with selectable noise cancellation up to 20 dB, and are certified for Microsoft Teams Rooms and Zoom Rooms. AT models add a 4-port Gigabit switch with Dante/AES67 networking — 48 Rx and 24 Tx channels at 24-bit/48 kHz — with FlexInput on all 12 analog inputs. V models add up to 8 concurrent SIP 2.0 VoIP lines with wideband codec support, TLS/SRTP security, and NAT traversal. All models include 32 configurable presets, 16 virtual processing loops, digital I/O (8 in, 16 out), RS-232, Ethernet, USB control, and an Extron Everlast internal power supply with a 7-year warranty. Configuration is handled via DSP Configurator Software with a graphical user environment, live and emulate modes, and Device Manager for multi-unit deployments.

Key Features

• 12 Mic/Line Inputs, 8 Line Outputs — All Models — 12 balanced/unbalanced mic/line inputs (8 with 48V phantom power) and 8 balanced/unbalanced line level outputs in a 1U full-rack enclosure.
• ProDSP 64-Bit Floating Point Processing at 24-bit/48 kHz — High dynamic range DSP engine with <0.02% THD+N, S/N >107 dB (analog in to analog out), and half the latency of the previous generation.
• Automixer — 8 Groups, Gated and Gain-Sharing — Manages up to 8 groups of microphone signals with user-adjustable gating threshold, level reduction, and timing per channel to avoid chopped audio.
• 12-Channel AEC with Noise Cancellation — C Models Only — Twelve independent AEC channels with >200 ms tail length, up to 60 dB/sec convergence, and up to 20 dB selectable noise cancellation; certified for Microsoft Teams Rooms and Zoom Rooms.
• Dante/AES67 Audio Networking — AT Models Only — 48-channel Rx and 24-channel Tx Dante networking with Dante Domain Manager support, a built-in 4-port Gigabit switch, and FlexInput on all 12 analog inputs.
• Up to 8 SIP 2.0 VoIP Lines — V Models Only — Up to 8 concurrent, independent VoIP extensions with wideband codecs, TLS/SRTP security, STUN/TURN/ICE NAT traversal, and VLAN support.
• USB Audio Interface — Configurable I/O — Configurable as 0x8, 2x6, 4x4, 6x2, or 8x0 for connectivity to room PCs running soft codecs or UC platforms.
• EXP Port — Link Two DMP 128 Plus Units — 16-channel bidirectional 24-bit/48 kHz expansion bus over shielded CAT 6 between two DMP 128 Plus processors, or to DTP CrossPoint matrix switchers.
• Triple Matrix Design — Primary output matrix (up to 84x48 on AT models), virtual bus matrix (16 virtual processing loops), and expansion matrix for maximum routing flexibility.
• 32 DSP Configurator Presets — Store and recall any combination of DSP settings, routing, and mix points as presets; controllable via RS-232, Ethernet, USB, ACP panel, or digital I/O.
• Up to 8 Audio File Players — Play back WAV, MP3, WMA, AIFF, AAC, or RAW files from 100 MB onboard storage for signal testing or programmatic playback.
• ACP Audio Control Port — Direct interface with Extron ACP series audio control panels for systems that do not require a full control processor.
• Front Panel Signal and Clip LEDs — Real-time signal presence monitoring and clip warning LEDs for each input and output.
• Extron Everlast Internal Power Supply — 7-Year Warranty — Universal 100–240 VAC power supply with 7-year parts and labor warranty; 3-year warranty on all other components.

Technical Specifications

Typical Application

The DMP 128 Plus Series is deployed in conference rooms, boardrooms, training facilities, courtrooms, and multi-room AV systems where professional audio DSP, automixing, and flexible routing are required. C models are the preferred choice for videoconferencing rooms requiring AEC. AT models suit large campuses or multi-building deployments where Dante audio networking enables centralized DSP management. V models add integrated VoIP conferencing capability without a separate dial-up codec.

Spec Sheet PDF Download

Download the Extron DMP 128 Plus Series Spec Sheet (PDF)