SoundTube’s MA3501t is a 2RU, 350W mono amplifier designed for distributed sound applications. Offering transformer taps at 25V, 70V, and 100V plus bypass mode, the MA3501t delivers 350W into 4W, 25V, 70V, and 100V and 225W into 8W, with a frequency response of 30Hz–35kHz +/- 0.5dB. Inputs are RCA (unbalanced) and Euroblock (balanced) connectors, with outputs to speakers via Euroblock connectors. A selectable limiter is provided, along with a three-position subsonic filter (40Hz, 60Hz, or off); auto music sensing and a 12V trigger option are provided for remote activation and deactivation. The unit is fan-cooled and offers overload, short circuit, and heat protection, along with peak output protection. All controls for the MA3501t are presented on the rear panel to deter tampering with levels or settings.
