I still love my S530D sound characteristics over this.
I wouldn't mind owning this unit~ But if I need music I would rather have the S530D than this~

but damn the bass in this is violent

But the crossover problem is only for Edifier. I had in the past a (very) old Creative DTT2500. It's a consumer 5.1 system (one of the first in the market in the old days) but has the crossover setup correctly. The same apply for Logitech 5.1 models. They doesn't output HiFi sound quality but the "design" itself is right. On the other hand, here we have S550 which has right crossover setting for L/R but wrong for C/Ls/Rs, and S760D which has all wrong crossover setting for analog on all channels (digital is working right).