Audio-Technica’s new AT-DMM828 Digital Matrix Mixer

Audio-Technica announced the new AT-DMM828 Digital Matrix Mixer, the next generation of the company’s SmartMixer family of automatic mixers. The AT-DMM828 is a microprocessor-controlled, programmable, automatic-switching eight-channel matrix mixer. Designed for a variety of applications, including installed sound/sound reinforcement, houses of worship, broadcast, recording and more, the AT-DMM828 is designed to improve audio quality through a number of sophisticated methods. One way it achieves this is by keeping the number of open microphones to a minimum, thus reducing background noise, feedback and other distractions, and increasing clarity and audio quality, while providing instant, completely transparent switching between channels. Additionally, the mixer features “correlation,” which analyzes and interprets redundancy of source material between channels in real time and may in turn favor the dominant channel, simplifying the layout/output and reducing feedback, phase issues etc.

The AT-DMM828 can be used with low-impedance dynamic or condenser microphones (including wireless microphone systems), as well as line-level sources. Each of the eight balanced inputs provides switchable 48-Volt phantom power; attenuation is also selectable on each input to allow use with line-level signals. The mixer’s outputs are balanced and non-inverting. All audio connections terminate in block screw connectors.
 
Up to 16 units of AT-DMM828’s (a total of 128 channels of inputs) can be daisy-chained via CAT5e cable, which carries control bus, audio, and configuration data between mixers. Multiple mixers linked in this way will operate as if they are a single mixer. Therefore, microphones activated on any mixer will cause the appropriate switching functions to occur.
 
Each AT-DMM828 includes two separate external control system interfaces: Individual channel contact closures (via DB25 connector) and PC control (via RS232 connector or USB). The RS232 connector can also be used to connect an external third-party control system (e.g. Crestron or AMX) using “open disclosure communication protocol” to control the mixer.
 
The new AT-DMM828 Digital Matrix Mixer also features individual gain and sound volume controls, adjustable gate attenuation (0 dB to full mute in steps of 1 dB) and gate hold time (0 sec to 6 sec in steps of 0.1 sec) with adjustable mic on thresholds levels (Auto/Manual). Its DSP features support input signal level meters (Peak/RMS), signal generator (Sine wave/Pink noise/White noise), parametric EQ (3 band/4 band), filter (Low pass/High pass/Low shelving/High shelving/Notch/All pass), limiter and delay on the output channels.
www.audio-technica.com