Audiopipe APMN Mini Series Class-A/B Channel Amplifier 1000 Watts. 110 Watts 2 2 Ohms. 75 Watts 2 4 Ohms. DIM (W H L) 3-3/8" 2-1/4" 7-7/8". Fuses: x 30A. Class-A/B. Ohm Stable. Hi/Low Pass Filter. Signal to Noise Ratio: 80dB. Bass Boost: 0.2V 6V. Input Sensitivity: <0.05%. Frequency Response: 50 Hz 20 Hz.. Fan cooled. Remote bass knob.