Visual Sound, Inc. Stereo Mixer/Amplifier 232-Amp+

Contemporary Research The Contemporary Research 232-Amp+ is a compact, programmable mixer/amplifier aimed at integration with flat-panel displays and video projectors, now updated with more audio power. The versatile amp features a stereo line-level display/projector audio input and two mono aux inputs, and outputs stereo sound at 32/40W RMS. The aux inputs mix levels with the stereo input, and can be set to mute or lower other inputs when active, ideal for wireless mics and paging applications. The Class D amplifier is highly energy-efficient, using 90% of DC power for amplification, operating with very little heat, and consuming almost no power at all when quiet. When combined with a CR tuner and pole mount bracket, the 232-Amp+ serves as an integrated AV tuning/audio solution for video projector installations. The optional SMA bracket (shown above) mounts the 232-Amp to the top of CR tuners, and a single RS-232 port can control a 232-series tuner and amp. Full RS-232 control and status is available, allowing integration with custom control systems. In addition to setting master gain and input levels, the commands can also set max and minimum gain, and aux input threshold and ducking levels. Installers can adjust performance manually in the field using onboard switches and level potentiometer.