DMP 128 C AT - Audiovisual Equipment Extron - Free user manual and instructions
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| Product Type | Digital Matrix Processor with AEC and Dante |
| Model | DMP 128 C AT |
| Brand | Extron |
| Audio Inputs | 12 analog mic/line inputs (removable phoenix connectors) |
| Audio Outputs | 8 analog line outputs (removable phoenix connectors) |
| Digital Audio | Dante audio network with 32x32 channels |
| Processing | Acoustic Echo Cancellation (AEC), automatic mixing, EQ, dynamics |
| Form Factor | 1U rack-mountable, half-rack width |
| Dimensions | 8.7 in wide x 1.7 in high x 10.5 in deep (22.1 cm x 4.3 cm x 26.7 cm) |
| Weight | 4.2 lbs (1.9 kg) |
| Power Supply | Internal, 100-240 VAC, 50/60 Hz, 30 watts |
| Control | Ethernet (TCP/IP), USB, RS-232, contact closure |
| Software | Extron DSP Configurator and Dante Controller |
| Maintenance | Wipe with dry cloth; avoid liquids; no user-serviceable parts inside |
| Safety | Operate in a well-ventilated area; use grounded outlet; do not expose to moisture |
| Spare Parts & Repair | Contact Extron for authorized service; warranty covers defects |
| Warranty | 3 years parts and labor |
| Compliance | CE, FCC Class A, RoHS |
Frequently Asked Questions - DMP 128 C AT Extron
What is the DMP 128 C AT used for?
The Extron DMP 128 C AT is a digital matrix processor designed for conferencing and audio distribution. It mixes 12 inputs to 8 outputs with AEC and Dante connectivity.
How do I connect microphones to the DMP 128 C AT?
Use the 3-pin phoenix connectors for mic inputs. The device supports phantom power (48V) for condenser microphones, which can be enabled via software.
Does the DMP 128 C AT support Dante?
Yes, the 'AT' model includes Dante audio networking with 32x32 channels for digital audio transport over a standard network.
How can I configure the AEC on this device?
Use the Extron DSP Configurator software to set up Acoustic Echo Cancellation on each input. You can adjust filter lengths and adaptation rates per channel.
What control options are available?
The unit can be controlled via Ethernet (TCP/IP), USB, RS-232, or contact closure. Standard control systems like AMX, Crestron, and Extron IP Link are supported.
How do I update firmware?
Download the latest firmware from the Extron website. Connect via USB or Ethernet, then use the Firmware Loader utility to upload the new version.
What is the input impedance for line inputs?
The line inputs have an impedance of 20 kΩ (balanced) and can accept levels up to +24 dBu.
Can the DMP 128 C AT be used with a PC?
Yes, it connects via USB for direct control and configuration with the DSP Configurator software. No driver installation is required for basic operation.
What is the default IP address?
The default IP address is 192.168.254.254 with subnet mask 255.255.255.0. This can be changed via a web interface or software.
How do I troubleshoot no audio output?
Check input levels, mute settings, and output routing in software. Ensure Dante streams are subscribed correctly and that the amplifier is receiving signal.
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