I bought this amp brand new at circuit citya few years ago. It has only powered 3 different items.
Powered 2 pioneer 6x8s ( never got around to wiring the front speakers )
Powered 1 kenwood typhoon 10’’
last I powered with it was 2 MTX jack hammers 12’’ DVC 2 ohm wired to take a 4 ohm final load.
NEVER had any issues, nor was it ever “maxed” out.
http://www.audiogearreviews.com/reviews/amplifiers/review-jensen_jpa460.asp
$60