Proficient Audio M3
To get great bass, you need a great amp, because bass requires about three times as much power as mids and highs. That's why Proficient Audio designed the M3 subwoofer amp. It was designed for use with Proficient Audio's in-wall and ceiling subwoofers, but thanks to its stereo and LFE inputs and built-in crossover, it works great with any passive subwoofer.
The M3's high-current 180-watt amplifier has plenty of headroom, so it can deliver that extra kick of bass whenever the movie or music calls for it.
The built-in auto On/Off circuit turns on the power as soon as the M3 senses a signal, and shuts it off a few minutes after the signal stops. Bolt-on ears are included allowing for the M3 to be rack mounted where necessary.