DMP 128 FlexPlus

ProDSP Dante Digital Matrix Processors
Key Features
  • Two models with 60 total inputs and 32 total outputs
  • 48x24 Dante audio networking with Dante Domain Manager and AES67 support
  • Twelve channels of AEC - acoustic echo cancellation
  • New All models include a configurable USB Audio interface
  • V model includes up to eight VoIP lines that support generic Session Initiation Protocol - SIP 2.0 connectivity per RFC 3261
  • Compact half rack size
The Extron DMP 128 FlexPlus
Model Version Description Part #
DMP 128 FlexPlus C AT Dante Digital Matrix Processor w/ 12 AEC 60-1820-10
DMP 128 FlexPlus C V AT Dante Digital Matrix Processor w/ 12 AEC and VoIP 60-1821-10

The DMP 128 FlexPlus series of compact Dante Digital Matrix Processors features twelve FlexInput channels with full DSP, including AEC, and Dante connectivity, in only a half rack space. With an extensive mix matrix, a USB audio interface, and analog compatibility, the DMP 128 FlexPlus provides the ability to easily connect and route multiple types of source signals to accommodate diverse analog and digital system requirements. For collaboration applications, the V model includes up to eight VoIP lines. Featuring an ACP bus for audio control panels, an expansion port for bidirectional digital audio connection with a DTP CrossPoint or another DMP, eight audio file players, and configurable macros, the DMP 128 FlexPlus can be used anywhere from a collaboration space, to a large conference room.

FlexPlus - Ideal for Multiple Dante Sources

The Dante-enabled DMP 128 FlexPlus series is ideal for applications that utilize Dante ceiling microphone arrays and other Dante‑enabled devices. With network connectivity for up to 48 Dante sources and 24 Dante destinations, the DMP 128 FlexPlus, featuring a built‑in two‑port Gigabit switch, enables the creation of simplified, cost effective audio systems.

FlexInputs

All twelve main DSP channels of the DMP 128 FlexPlus offer FlexInput source selection to route any Dante input, expansion input, or one of the four mic/line inputs, to a main DSP channel. This enables the DMP 128 FlexPlus to process audio from any source with the full range of DSP capabilities, including AEC.

Dante Connectivity

The DMP 128 FlexPlus provides scalable Dante digital audio transport, with Dante Domain Manager support, over a local area network using standard network protocols. A DMP 128 FlexPlus can be configured to support primary and redundant Dante audio networks, as well as AES67 interoperability.

Acoustic Echo Cancellation

The DMP 128 FlexPlus series includes Extron AEC for conferencing applications. AEC is essential for effective remote room-to-room conversations, ensuring clear, natural communication for all participants. These models include twelve independent channels of high performance AEC, as well as selectable noise cancellation. AEC processing can be challenged by conditions such as double-talk, when talkers from both ends are speaking simultaneously, and when near end talkers use wireless microphones. Extron AEC features advanced algorithms that deliver fast echo canceler convergence for optimal intelligibility, even in challenging conditions.

The DSP Configurator Software simplifies AEC and noise cancellation setup with a user-friendly interface that provides real-time metering for ERL - Echo Return Loss, ERLE - Echo Return Loss Enhancement, and TER - Total Echo Reduction levels. Guided alerts appear whenever ERL is outside of the optimal range for echo cancellation and DSP templates serve as starting points with routing optimized for AEC workflows. Optional settings include fine adjustments for NLP - Non-Linear Processing to maximize AEC performance in acoustic environments with significant sonic reflections or reverberation.

VoIP - Voice over Internet Protocol Capability

The DMP 128 FlexPlus C V AT includes up to eight SIP 2.0 VoIP lines, with wideband codec support, that can be configured as individual extensions or with multiple call appearance channels to support local conferencing applications. Compatible with select VoIP systems, any single V model of the DMP 128 FlexPlus series can be used for a single VoIP line or as a VoIP farm for up to eight rooms.

USB Audio Interface

The included USB audio interface provides connectivity to a computer for use with soft CODEC applications and computer sourced audio.

Automixer

The DMP 128 FlexPlus series features an automixer with gated and gain sharing modes that can manage up to eight groups of microphone signals. Gating threshold, signal level reduction, and timing parameters are user-adjustable per channel. This allows for fine-tuning to avoid the “chopped” sound characteristic of a traditional automixer when a mic is gated off. As the number of active microphones is doubled, system gain is automatically reduced, uniformly attenuating microphone signal levels to minimize audible changes in the overall sound and the possibility of feedback. For a natural sounding mic mix, the automixer also offers a gain sharing mode which allows all mics to remain on, while the gain for each mic is adjusted in real time to ensure a constant system gain.

Powerful Routing Across Two ProDSP Processors

The DMP EXP expansion port allows two Extron ProDSP units to be linked together via a single shielded CAT 6 cable.  This creates a 16 channel bi-directional 24-bit/48 kHz high-resolution digital audio expansion bus between the two units, allowing expanded input and output signal management and routing capabilities. This expanded 16x16 I/O channel transport between devices allows designers to create audio mixes with advanced I/O and signal management scenarios combining the capabilities of two processors. The expansion port is also available on Extron DTP CrossPoint® matrix switchers. This allows a 16x16 I/O channel transport between the matrix switcher and a DMP 128 FlexPlus to expand the number of available audio inputs for a DTP System, and to offer additional capabilities such as automixing, AEC - Acoustic Echo Cancellation, and VoIP - Voice over Internet Protocol.

Versatile Control Options

Each model is equipped with an ACP audio control port to support the use of Extron Audio Control Panels. ACP control is ideal for systems that do not require a full control system. A DMP 128 FlexPlus can also be controlled and configured via RS-232 serial control, Ethernet control, or USB. Each model also includes two digital I/O ports, which allow for external triggering such as mic activation and muting.

ProDSP

Extron’s exclusive ProDSP is engineered from the ground up using a powerful 64‑bit floating point DSP engine to provide very wide dynamic range and reduce the potential for clipping. ProDSP also utilizes studio grade 24‑bit audio converters with 48 kHz sampling to maintain audio signal transparency. ProDSP is loaded with powerful, easy‑to‑configure tools to control level, adaptive gain, automixing, dynamics, filters, delay, ducking, loudness, feedback suppression, and AEC.

Easy-to-Use DSP Configurator Software

The power of ProDSP is easily harnessed with the DSP Configurator Software. The flexible on‑screen layout offers fast access to all of the digital audio signal processing tools. Designers can quickly get a snapshot view of the entire audio system, including processing blocks and routing assignments, all at once.

Features

Note: Dante® is a trademark of Audinate® Pty Ltd.

DANTE NETWORK PRODUCTS
  AXI 44 AT 4 Input, 4 Output Dante Audio Interface
  AXI 22 AT 2 Input, 2 Output Dante Audio Interface
  AXI 22 AT D 2 Input, 2 Output Dante Audio Interface - Decorator-Style Wallplate
  AXI 02 AT Two Output Dante Audio Interface
  AXP 64 C AT 6 Input, 4 Output Audio Expansion Processor with AEC and Dante
  AXP 50 C AT Five Input Audio Expansion Processor with AEC and Dante
  NetPA 502 AT Two Channel Audio Power Amplifier with Dante - 50 Watts Per Channel
  NetPA 1001-70V AT Mono 70 V Audio Power Amplifier with Dante - 100 Watts
OPTIONAL ACCESSORIES
  ACP 100 Audio Control Panel with Volume and 6 Control Buttons
US 2-Gang
  ACP 105 D Audio Control Panel with 5 Buttons
Decorator-Style
  ACP 105 EU Audio Control Panel with 5 Buttons
Flex55 and EU
  ACP 105 MK Audio Control Panel with 5 Buttons – MK
  ACP 106 D Audio Control Panel with 6 Buttons
Decorator-Style
  ACP 106 EU Audio Control Panel with 6 Buttons
Flex55 and EU
  ACP 106 MK Audio Control Panel with 6 Buttons – MK
  ACP VC1 D Audio Control Panel with Volume and Mute
Decorator-Style
  ACP VC1 EU Audio Control Panel with Volume and Mute
Flex55 and EU
  ACP VC1 MK Audio Control Panel with Volume and Mute - MK
  CSC 6 Captive Screw to Category Cable Adapter
  RSU 129 Universal Rack Shelf Kit for 9.5" Deep Products
  RSB 129 Basic Rack Shelf for 9.5" Deep Products
  UTS 100 Series Under Table Shelf System
  Half Rack Shelf System Half-Rack Width Rack Shelf and Accessories
COMPATIBLE SOFTWARE
  DSP Configurator Software DSP Application Software
  Toolbelt Setup, Management and Troubleshooting Utility
  Dante Controller Configuration Software for Dante-Enabled Audio Products
  DataViewer Free Enhanced Terminal Emulation Software

Specifications

DMP 128 FlexPlus
Audio system
   Gain Balanced output: 0 dB, unbalanced output: -6 dB
   Frequency response 20 Hz to 20 kHz, ±0.2 dB
   THD + Noise <0.01%, 20 Hz to 20 kHz, at maximum level
   S/N 
      Analog In to Analog Out >107 dB, 20 Hz to 20 kHz, at maximum balanced output (unweighted)
      Analog In to Digital Out 110 dB, 20 Hz to 20 kHz, at full-scale output (unweighted)
      Digital In to Analog Out 115 dB, 20 Hz to 20 kHz, at maximum balanced output (unweighted)
   Crosstalk <-90 dB @ 20 Hz to 20 kHz, fully loaded
   Volume control -100 dB to 0 dB (control 0 to 100 in 0.1 dB steps)
Audio input
   Number/signal type 4 mono (or 2 stereo), mic/line, balanced/unbalanced, 4 with phantom power
   Connectors (2) 3.5 mm captive screw, 6 pole, mono, balanced/unbalanced
   Impedance >10k ohms balanced/unbalanced
   Nominal level -60 dBV, +4 dBu, -10 dBV adjustable via input gain
   Maximum level +21 dBu at rated THD+N when mic gain is set to 0 dB
   Equivalent input noise <-120 dBV (1 µVrms) at 40 dB input gain
   CMRR >60 dB typical
   Input gain adjustment -18 dB to +80 dB in 0.1 dB steps, adjustable per input
   DC phantom power +48 VDC, +10% (inputs 1-4) can be switched on or off per input
    NOTE     0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu; All nominal levels are at ±10%
Audio output
   Number/signal type 8 mono (or 4 stereo), line, balanced/unbalanced
   Connectors (4) 3.5 mm captive screw, 6 pole, mono, balanced/unbalanced
   Impedance 100 ohms balanced, 50 ohms unbalanced
   Gain error ±0.1 dB channel to channel
   Maximum level (Hi-Z) >+21 dBu balanced, >+15 dBu unbalanced
Audio processing
   A/D, D/A conversion 24-bit, 48 kHz
   AEC tail length >200 msec
   AEC convergence Up to 60 dB/sec
   Noise cancellation Up to 20 dB, software selectable
EXP port
   Transmission type Proprietary
   Connector 1 RJ-45
   Inputs 16 channels Rx
   Outputs 16 channels Tx
   Audio format Uncompressed, 24-bit, 48 kHz
   EXP cable Shielded CAT6 up to 10 meters (1 foot cable included)
USB audio port
   Connector 1 rear panel USB mini-B
   USB standards USB 2.0, high speed
AT ports — audio transport
   Transmission Dante/AES-67, software selectable
   Connectors 2 RJ-45, 2-port 1 Gbps switch to Dante interface
   Inputs 48 channels Rx
   Outputs 24 channels Tx
   Audio format Uncompressed, 24-bit, 48 kHz
   Latency Deterministic, based on user selections: 0.25 ms, 0.5 ms, 1.0 ms (default), 2.0 ms, 5.0 ms
VoIP port (DMP 128 FlexPlus V model only)
   Connector 1 RJ-45
   Data rate 10/100/1000 Base-T
   Signaling protocol Session Initiation Protocol (SIP), RFC 3261 and related RFCs
   Discovery protocol LLDP-MED (optional)
   Lines Up to 8 concurrent, independent extensions
   Codec support Various ITU, including wideband
   Default settings Link speed and duplex level = autodetected
IP address = 192.168.1.254
Subnet mask = 255.255.255.0
Default gateway = 0.0.0.0
DHCP = off
Control/remote
   Serial host control port 1 bidirectional RS-232, 3.5 mm captive screw, 3 pole
      Baud rate and protocol 38400 baud, 8 data bits, 1 stop bit, no parity
      Pin configuration 1 = Tx, 2 = Rx, 3 = G
   USB control port 1 front panel USB mini-B
      USB standards USB 2.0, high speed
   ACP control port (1) 3.5 mm captive screw, 4 pole, supports up to 8 panels
      Pin configuration 1 = +12V, 2 = +S, 3 = -S, 4 = G
      Power supply 6 Watts max
   Digital I/O (2) 3.5 mm captive screw, 3 pole
      Pin configuration 1 = In, 2 = G, 3 = Out 1
      Voltage range Input = 0V to +12V
Output = 0V (low), 5V (high)
Software programmable
   Ethernet host port 1 RJ-45
      Data rate 10/100/1000 Base-T
      Protocol ARP, ICMP, IP, TCP, DHCP, HTTPS, Telnet, SSH
      Default settings Link speed and duplex level = autodetected
IP address = 192.168.254.254
Subnet mask = 255.255.255.0
Default gateway = 0.0.0.0
DHCP = off
   Web server Up to 200 simultaneous sessions
   Program control Extron DSP Configurator control/configuration program for Windows®
Extron Simple Instruction Set (SIS)
Microsoft® Internet Explorer®, Telnet
General
   Power supply External
Input: 100-240 VAC, 50-60 Hz
Output: 12 VDC, 2 A, 24 watts
   Power consumption 
      DMP 128 FlexPlus C AT 
         Device 14.9 watts
         Device and power supply 17.1 watts
      DMP 128 FlexPlus C V AT 
         Device 15.6 watts
         Device and power supply 17.9 watts
   Thermal dissipation 
      DMP 128 FlexPlus C AT 
         Device 40.6 BTU/hr
         Device and power supply 48.0 BTU/hr
      DMP 128 FlexPlus C V AT 
         Device 43.1 BTU/hr
         Device and power supply 50.8 BTU/hr
   Temperature/humidity Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
   Cooling Fan, front to back, variable speed, OFF when ambient temperature is less than 45 °C
   Mounting 
      Rack mount Yes, with optional 1U rack shelf
      Furniture mount Yes, with optional under-desk mounting kit
   Enclosure type Metal
   Enclosure dimensions 1.7" H x 8.7" W x 9.5" D (1U high, half rack wide)
(4.3 cm H x 22.1 cm W x 24.1 cm D)
   Product weight 2.4 lbs (1.1 kg)
   Regulatory compliance CE, c-UL, UL, CE, C-Tick, FCC Class A, ICES, RoHS, VCCI, WEEE
   Warranty 3 years parts and labor
    NOTE     All nominal levels are at ±10%.
    NOTE     Specifications are subject to change without notice
(4673-080119)
Shipping Dimensions and Weights
    Part # Height Width Depth Weight
    60-1820-10 5.0" (12.7 cm) 14.0" (35.6 cm) 15.0" (38.1 cm) 4.5 lbs (2.04 kg)
    60-1821-10 5.0" (12.7 cm) 14.0" (35.6 cm) 15.0" (38.1 cm) 4.5 lbs (2.04 kg)

Diagram


Panel Drawing

Panel Drawing
© 2020 Extron. Specifications are subject to change without notice.