Check the listing for details. 1000W Subwoofer Amplifier w/ DSP Mono Class D, 4ohm Stable, Auto-Sensing SAM500. Condition: Open box. Listed at 329.99 USD. The OSD Black subwoofer amplifier is the ultimate choice for high-powered, low-distortion sound systems. With the ability to deliver up to 1000W into 4 Ohms, this amp is capable of powering multiple 8Ohm subwoofers at once. Whether you're installing in walls, ceilings, or outdoors, the SAM500 is the perfect solution. It features 10 pre-programmed presets for easy setup and optimal performance with your main speakers, soundbars, or TV. For a deep, rich bass experience, the SAM500 is essential. With a frequency range down to 20Hz, it can reproduce the deep bass found in movie and music soundtracks that small speakers and soundbars can't. Experience the full audio spectrum with the OSD Black subwoofer amplifier Specifications:Amplifier Type: Subwoofer Amplifier MonoAmplifier Class: Class DChannels/Zones: 1Power Handling @ 8Ohm: 250W RMS/ 500W PeakPower Handling @ 4Ohm: 500W RMS/ 1000W PeakFrequency Response: 20Hz - 160HzImpedance: 8 & 4 Ohm StableTransformer Type: Toroidal TransformerInput Terminals: RCA and XLR Signal (low) LevelInput Sensitivity: 190mVCrossover: 40Hz to 160HzSignal to Noise Ratio: 90 dB Air-Cooled or Fan Cooled: FanControls: Phase, Crossover, Subsonic, Slope, Level and (via Advanced PC Utility) 7 Band P EQRemote Control: Yes12 Volt Triggers (Trigger Mode): YesAuto-On Sensing: YesPower Supply: Switchable 120/240V Input VoltageRack Mountable: Yes - Mounts IncludedDimensions (L x D x H): 19" x 10.38" x 1.75" w/ MountsWeight: 16 lbs.Rating: ETL, CE