It will power a built in 12: sub that mainly used to fill in some base for a pair of inwall speakers. Doesn't need to be a room crushing monster.

Sub was previously pushed by a BIC America SWA-100 amp, and it worked for a very long time.

Worst case, I could buy a sub and cannibalize the plate amp for this, as the built in sub definitely has the room to mount one.

I see plate amps on Amazon but most all are Dayton Audio which I'm not thinking are of any quality.