Feature: 1. 4 Channel Power Amplifier: This professional digital power amplifier features 4 channels, providing massive and efficient power output of 4 x 1150W RMS at 4?? and 4 x 600W RMS at 8??. 2. Cutting Edge D Class Amplifier: Utilizing D class amplifier technology, this amplifier offers unparalleled performance with outstanding power efficiency in a lightweight design. 3. XLR SPEAKON Connectivity: Easily connect your speakers and subwoofers with 4 XLR inputs and 4 Speakon outputs. The STEREO or PARALLEL switch guides signal flow effectively for diverse sound effects. 4. Safety Ensured: The professional power amplifier is equipped with fuse holders and LED indicators for overload, overheat, and short circuit prevention. A 3 second start delay and built in limiter ensure activation and prevent distortion. 5. Robust Construction: The 1U rack mountable chassis features a sturdy metal structure that can withstand the most demanding requirements for long lasting durability. Specification: Item Type: 4 Channel PA DJ Power Amplifier Material: Metal Frequency Response: 20Hz-20KHz ??0.5dB at 1W at 8R Harmonic Distortion: 0.02 at 1KHz/8R Signal to Noise Ratio: 105dB Input Sensitivity: 0.775V Input Impedance: 20K balanced input, 10K unbalanced input Damping Factor: >1000 Conversion Rate: 50V/us. Package List: 1 x Amplifier 1 x Supply Adapter 1 x Instruction Manual