Review on Nobsound 100W TPA3116D2 Amplifier Subwoofer Digital Power Amp Board NE5532 OPAMP 8-25V: Unleash the Subsonic Experience by Nathan Theriault

The original amp in my HKTS 14 subwoofer seems to have given off magic smoke. After trying to fix the problem by replacing the caps to no avail, decided I decided to replace the amp and found this handkerchief It's about 25% the size of the original equipment but has enough power to drive a 12" Sub Ts 14 driver (with 3.5 ohm inductance).The original amp was 200 watts in but that doesn't bother at all.store.It lacks some features of the original but for $12 it works very well.I even use just a 32w power supply from one old Airport Express (so the output power is far from 100W).