Black Diamond DIA-P3600X4DClass D 4-Channel Full Range Amplifier The DIA-P3600X4D powers your system with 400W RMS per channel at 4 ohms and 680W RMS per channel at 2 ohms. Bridged, it delivers 1200W RMS per channel at 4 ohms. It covers 20Hz to 20kHz with 1% distortion, maintaining clean, powerful sound. Flexible Audio ControlGain ranges from 0.2 to 6 volts input sensitivity. Selectable full, low-pass, or high-pass crossovers operate between 40Hz and 4kHz, allowing you to dial in your perfect so