Amplifier Class: Class AB RMS Power: 60 W x 4 @ 4-Ohms 125 W x 4 @ 2-Ohms Bridged Power: 250 W x 2 @ 4-Ohms Bridged Frequency Response: 20Hz - 20KHz Input Voltage: 150mV - 4V Built-in Crossover: Yes Crossover Frequency Range: Front High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth Front Low-Pass (LP): 50-500Hz 12dB/octave Butterworth Rear High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth Rear Low-Pass (LP): 50-500Hz 12dB/octave Butterworth Bass Boost Control: Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Front Punch EQ2 Treble: 0dB to +12dB @ 12kHz Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Rear Punch EQ2 Treble: 0dB to +12dB @ 12kHz Function depends upon LP/AP/HP switch position