Features QUANTUM AUDIO QCA2300 1200 WATT 2 Channel Car Amplifier MAX POWER: 1200 WATTS RATED POWER @ 14.4 VOLTS 2 OHM STEREO: 2 X 600W 4 OHM STEREO: 2 X 300 4 OHM BRIDGED: 1 X 1200W CIRCUITRY: A/B MOSFET BASS EQ @ 45Hz: 0-18dB INPUT SENSITIVITY: 200mV- 6V INPUT VOLTAGE: 12 VDC FREQUENCY RESPONSE: 20Hz-28kHz SIGNAL TO NOISE RATIO: >95dB LOW PASS FILTER: 30hZ-150Hz (VARIABLE) HIGH PASS FILTER: 10Hz-1.2kHz (VARIABLE) THD @ RATED POWER: