Sony’s ZZR Series Amplifier XM-ZZR3301 Mono amplifier is both powerful and aesthetic with blue illumination. Power your Subwoofer with this Mono bloc and enjoy precise and powerful thumb in your car.

It has got built-in variable Low-Pass filter with 12dB/octave slope and a Subsonic filter to mark the undesired lows. Overall it will make your audio tuning a fun!