The CSA2120 power amplifier is a professional-grade audio amplifiers built for installed sound applications. The amplifier s a two-channel model providing simple analog front-end processing, with a switch-mode universal power supply. Features2 x 120W at 4/8OhmsPlenum Rated (UL2034) *NEW*Compact size and light weightConvection CooledAuto-standby mode for energy savingsSumming RCA inputs for each channelSpecsOutput 120W @ 4/8 Ohms (1kHz Power, THD+N<0.5%)Frequency Response +/- 1dB (@1W into 4 or 8 Ohms)Load Impedance Stable from 2 - 16 OhmsSensitivity 1.4VrmsSignal to Noise Ratio Greater than 100 dB - 1kHz, A-weightedInput Impedance Balanced 20K Ohms/Unbalanced 10K OhmsMax Input +20dBu TypicalDimensions 8.2" x 1.7" x 7" (209 mm x 44 mm x 178 mm)Shipping Weight 2.9 Lbs (1.3 Kg)Included Accessories Rack mounting kit