Rockville RCS180-6350 Watt commercial/restaurant amplifier 19" rack mountable digital hybrid amplifier/receiver. Capable of 70 volt, 100 volt, 8ohm, and 4 ohm. 70/100 volt RMS Power: 184 Watts. 4-16 ohm binding post speaker output. 6-Zones of speaker outputs - each zone has a separate volume control. 70 and 100 volt binding post outputs for single zone playback of all 180 watts. Built in Bluetooth audio streaming. FM radio tuner. USB input to play audio stored on a thumb drive (32gb max). SD card slot to play music stored on an SD Card (32gb max). Separate volume control for MIC1, MIC2, MIC3, MP3, LINE1, LINE 2, and MP3. Echo control for the mic inputs with speed and repeat adjustments. Built in clipping limiter to protect the amp and speakers. BASS and Treble control. Detachable euro-block speaker output terminals for easy installation. Chime button for making announcements. Top quality aluminum panel with industrial grade knobs. 5 segments signal level indication. Built in cooling system keeps component cool at all times. Inputs and Outputs: (2) Sets RCA AUX inputs. (3) Mic inputs. RCA Line output. Optical input. Detachable euro-block speaker output terminals for easy installation. 100V speaker red positive speaker output terminal. 70V speaker red positive speaker output terminal. 8 Ohm red positive speaker output terminal. Shared negative speaker output terminal. Specifications: Power Requirements: 120V / 50-60Hz. A Weighted Signal to Noise (@ 1W) -68.1dBA. A Weighted Signal to Noise (referenced to full 4 ohm power) -89.2dBA. Frequency response: 49Hz to 14.9 Khz. Rockville is proud to introduce our new RCS series of products. The RCS180-6 is a 180 Watt 6-zone rack mountable digital hybrid amplifier/receiver. This amplifier is capable of 70 volt, 100 volt, 8-ohm, and 4-ohm applications. This makes it perfect for use in a Restaurant/Bar/Café/Lounge/School/Conference room or any other setting where many speakers are needed.