MA 4 Multichannel Amplifier on August 31, 2015 | Marketing Team Universal voltage, power-factor-corrected power supply Very low inrush current 100 watts x 4 channels in 1U chassis If you don't need this much power, please see the MA3 Multichannel Amplifier Built-in load monitoring Remote fault reporting and redundancy switching Optional 4 channel 70/100 volt transformers in 1U chassis Adjustable high-pass filters and remote level controllable Advanced dynamics control adjusts for sensitivity setting, load Z and temperature This product has not been tested to the current CE requirements and is not available in markets requiring CE compliance.