Cadence Acoustics F1200-1D 2400 Watt Peak Class D Mono Block Amplifier Cadence F1200-1D class D mono block amplifier 350W @ 4 ohm RMS; 700W @ 2 ohm RMS; 1200W @ 1 ohm RMS; 2400W Peak Frequency Response: 15Hz - 150Hz Minimum THD: 100dB; Damping Factor: &gt;200 @ 100Hz Dimensions (L x W x H): 11" x 2.75" x 16"