Black Diamond DIA-P1800X4DClass D 4-Channel Full Range Amplifier The DIA-P1800X4D delivers 200W RMS per channel at 4 ohms and increases to 320W RMS per channel at 2 ohms. When bridged, it pushes 600W RMS per channel at 4 ohms. Its frequency response spans from 20Hz to 20kHz, producing clear sound with only about 1% distortion. Precise Sound ControlInput gain adjusts from 0.2 to 6 volts, and you can select full, low-pass, or high-pass crossover between 40Hz and 4kHz. This flexibility lets you tai
