Cadence Acoustics CSA5000.1 3000 Watt Peak Mono Block Class D Amplifier Cadence Momentum Series CSA5000.1 class D 1-channel amplifier 300W x 1 at 4 ohm RMS, 600W x 1 at 2 ohm RMS, 1200W x 1 at 1 Ohm RMS, 2400W Peak Power/3000W Dynamic Power Frequency Response: 20Hz - 500Hz THD: &lt;0.01%; S/N Ratio: &gt;96dB; Input Voltage: 200mV-8V Dimensions (L x W x H): 10.7 inches x 8 inches x 2 inches