We Perchased one of these for use with a small pa system as a monitor amp. the first one we had died within half an hour due to fan failure so got a replace meant and thought we would give it another try , the second one lost 2 channel and crackled on other in a sound check. so sent back for a refund
outer build quality looked good and when it worked sound quality was good.
But reliability was poor !
it could of been a bad batch or just our bad luck but was enough for us to not trust the product