Cadence Acoustics F100-5 1800 Watt Peak 5-Channel Class AB Amplifier Cadence F100-5 class AB 5-channel amplifier 100W x 4 + 300W @ 4 ohm RMS, 150W x 4 + 500W @ 2 ohm RMS, 1000W Peak Power Frequency Response: 10Hz - 40 kHz Minimum THD: 100dB, Damping Factor: &gt;200 @ 100Hz, Channel Separation: &gt;65dB Dimension (L x W x H): 18 x 11 x 2.75 inches