Rockville RPA4 1000 Watt Peak / 500w RMS 2 Channel Power Amplifier DJ Amp Rockville RPA4 1000 Watt 2 Channel RPA 4 Pro Rack Professional DJ Power Amplifier. Channel A &amp; B Clipping Led Indicators. Channel A &amp; B Separate Level Controls. Power/Bridge/Stereo Front Panel LED Indicator. Stereo/Bridge Switch Control. Heavy Duty Rack Mount. Built-in High Velocity Cooling Fan. Maximum headroom for 4 and 8-ohm Speakers. Dentented level controls for precise setting and matching of sensitivity. Computer controlled IC Protection Circuitry against speaker short circuit, thermal over load, DC over load. Rack Ears: Allows for unit rack mounting. User serviceable fuse (10A, 250V). Input Terminals: XLR Channel A &amp; B Signal Input. 1/4&quot; TRS Channel A &amp; B Signal Input. RCA Channel A &amp; B Signal Input. Output Terminals: Banana Binding Post Speaker Output. 1/4&quot; Plug Speaker Output. Frequency Response: 20Hz to 20KHz &lt;+/- 0.5dB. Distortion: &lt;0.1% (1KHz). Input Insulation: 10K Ohm Balanced. 20K Ohm Unbalanced. Signal to Noise Ratio: &lt;95dB. Power Requirements: 120V / 60Hz. Weight: 16.5 lbs.