From dramatic distinction to dramatic design， Pioneer's GM Series amplifiers are thrillers in every sense， pushing the limits of flexibility and functionality. This 4-channel GM-A6704 Class AB amp delivers plenty of juice to power your speakers. It also automatically selects the proper input signal mode-either RCA or speaker level-plus it will turn on automatically when the receiver is turned on. Bass boost can be set to levels varying from 0 to 12 dB to enhance the overall balance and impact of all sounds， based on listening preference and music style.

1，000-Watt maximum power， 170-Watt maximum power x 4 channels at 4 ohms; 60-Watt RMS x 4 channels at 4 ohms; 250-Watt RMS x 4 channels at 2 ohms; 95-Watt RMS x 4 channels at 2 ohms bridged; 190-Watt RMS x 2 channels at 4 ohms bridged

95 dB signal to noise ratio and less than 0.05% total harmonic distortion (10-Watt， 1 kHz) for clean， powerful sound

Frequency response: 10 Hz to 70 kHz

Low-pass crossover frequency at 80 Hz and high-pass crossover frequency at 40 to 500 Hz

Includes high-level input harness and manual