Mix Matrix

The line input process routes incoming signals through a mix matrix to the line outputs. The mix matrix contains 16 mix-points, one for each input to each output bus with each mix-point containing a single fader with a range of -24 dB to +12 dB, plus a mute control. The step resolution is 0.1 dB.

Line Output Chain

Line output chain elements from left to right are as follows:

•Trim (TRIM) — One post-mixer mono gain control per channel with a range of -12 dB to +6 dB. The step resolution is 0.1 dB.

•Filter (FILT) — Up to nine frequency filters can be inserted in any combination of High Pass, Low Pass, tone (Bass & Treble shelving), or Parametric Equalizer.

•Dynamics (DYN) — One limiter per block per channel. The limiter prevents clipping and protects a system against component or speaker damage.

•Volume (VOL) — One output volume control per channel with a range of -100 dB to 0 dB. The step resolution is 0.1 dB. Gain control is provided pre-meter. Mute control is provided post-meter. A polarity switch (+ or -) is provided.

Processor Blocks

Processor blocks are placed in the signal chain to perform specific tasks. There are level control blocks, signal processor blocks and mix-point matrix blocks (with level control). Level control processors do not have to be inserted, they are always active. The following sections provide details of navigation, menus, and other interface operations. The processor blocks, while performing different functions, have several common elements.

•Insert — All blocks (except level controls) may be inserted by right-clicking on the desired box and selecting from the context menu or by double-clicking and making a selection.

•Remove a process — Active processors can be removed by right‑clicking on the box and selecting Delete or by selecting the block and pressing delete on the keyboard. This sets the parameters back to default and removes or “deactivates” the block. An active processor may be replaced by right-clicking and inserting a new processor. A warning appears to indicate the previous processor is about to be replaced.

•Mute — When a level block (gain, trim or volume) is muted, all signal flow is blocked. When mute is active a red mark appears in the lower left of the block. Mix-point mute is indicated by shadowing the mix-point.

•Bypass — When bypass is active, signal flow passes through the block without processing, regardless of the settings. When bypass is removed, the signal will be processed according to the parameter settings. A red mark appears in the lower left of the block (shown below) to indicate it has been inserted, but is currently bypassed.

DMP 44 LC • Operation

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Extron electronic DMP 44 LC manual Mix Matrix, Line Output Chain, Processor Blocks
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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.
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