Hardware Reset Modes

Firmware Updates

The firmware of the DMP 44 LC can be updated through USB or RS-232 connection. The user can obtain new firmware from the Extron website. After obtaining the new firmware, upload it to the unit using the Firmware Loader option in the DSP Configurator program (see the “Software Control” section), or using the Extron standalone Firmware Loader application available on the included disc or at www.extron.com.

Reset Actuator and LED

A recessed button on the rear panel (G) initiates two reset modes. The green front panel LED (B) and rear panel (B) LED blink to indicate the reset modes as described in the following section. See the previous front and rear panel diagrams.

With power on, when the reset button is held down the front and rear panel LEDs pulse (blink) every three seconds and put the unit in a different reset mode. The DMP 44 LC defaults back to the base firmware that shipped with the unit from the factory, allowing the user to recover a unit that has incorrect code or updated firmware running.

NOTE: Control software may not function correctly if using an earlier firmware version.

MODE 1 — Firmware reset: Disconnect power to the DMP 44 LC. Press and hold the reset button while applying power to return the firmware to the version shipped with the unit from the factory. This allows recovering a unit with incorrect or corrupt firmware. All user files and settings are maintained.

MODE 5 — Factory default reset: With power on, press and hold the reset button until the reset LED blinks 3 times (~9 seconds). Each flash will last for 0.25 seconds. Release, then momentarily (<1 second) press the reset button to return the DMP 44 LC to factory default conditions. If the second momentary press does not occur within 1 second, the reset is exited.

The default (reset) state of the device is:

•Inputs 1 to 4 are mixed to corresponding outputs 1 to 4 (all other mix-points are set to

0 dB gain and muted).

•All inputs are active (unmuted, 0 dB gain).

•All outputs are active (unmuted, 100% volume).

•No inserted or active DSP processing.

•Group master memory is clear (empty).

•No presets.

•Digital input ports are not active and not configured.

DMP 44 LC • Operation

DMP 44 LC specifications

The Extron DMP 44 LC is a powerful digital audio processor designed to cater to a wide range of audio distribution and mixing applications. It combines advanced audio processing capabilities with intuitive controls, making it an ideal solution for classrooms, conference rooms, and other professional audio environments. The DMP 44 LC features four inputs and four outputs, which provide incredible flexibility for any audio setup.

One of the standout features of the DMP 44 LC is its comprehensive DSP capabilities. The device incorporates Extron's renowned DSP technology, which offers extensive signal processing functionality including automatic mixing, gain sharing, EQ, delay, and filtering. These tools allow users to optimize audio performance, ensuring that sound quality is consistent and clear across all speakers and microphones.

In terms of connectivity, the DMP 44 LC offers a versatile array of input and output options. It includes balanced, low-impedance microphone and line level inputs, ensuring compatibility with a wide variety of audio sources. Outputs are also balanced, allowing for seamless integration with professional audio systems. The unit’s input and output configuration can be easily customized, accommodating different audio formats and setups.

The DMP 44 LC utilizes Extron’s patented ProDSP technology, which delivers precise signal processing capabilities without sacrificing audio quality. This technology supports high-resolution audio processing, enabling users to achieve the best sound reproduction possible. Moreover, the device allows for remote control and monitoring via an intuitive web-based interface, making it easy to manage audio settings from any location.

Another key characteristic of the DMP 44 LC is its robust design tailored for professional use. The compact form factor can be easily integrated into various environments, whether mounted in a rack or placed on a shelf. Additionally, its enhanced thermal management and sturdy construction ensure reliability and durability in demanding applications.

The DMP 44 LC embodies the latest advancements in audio technology, making it a reliable choice for professionals seeking high-quality sound management. With its extensive features, the digital audio processor allows for seamless audio mixing and processing, ensuring optimal performance in any audiovisual setup.