The 4-channel GM-A6604 amplifier can be bridged to connect speakers in front and a subwoofer in rear. It's also got built-in High-pass/low-pass crossovers, speaker level inputs for easy connection to an OEM headunit and Bass boost feature for an optimal bass.
Variable LPF and HPF allow for adjustable frequency between 40 Hz to 500 Hz* and greater car audio system flexibility according to subwoofer characteristics and personal listening preference.
*Variable HPF/LPF Channel B, Fixed HPF/LPF Channel A
Appropriate gain control adjustment can be made to ensure loud, clear, distortion-free music
10 Hz to 70 kHz
120 W x 4
190 W x 4
60 W x 4
90 W x 4
180 W x 2