Audio-Technica AT-DMM828 Digital Matrix Mixer

The AT-DMM828 is a microprocessor-controlled, programmable, automatic-switching eight-channel matrix mixer. It's designed for a variety of applications, including installed sound/sound reinforcement, houses of worship, broadcast, recording, and more. The mixer keeps the number of open microphones to a minimum 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.

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.

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. 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. Retail price: $2,169.00. 

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