I bought one of ocas this week. (800E)
I used it last night for a birthday, and he fed low 2caissons hortus
500w has 2 pairs of speakers VS12 in the same brand .... it "works" without flinching for almost 10h.
2x750w power is ample, a super dynamic, barely warm, you plug and forget .....
I think, given the result, having a very good deal .....
a very interesting choice that I would do without prob ......