For the price - superb. Cracking sound - lovely balance between bass and treble, which can sound slightly bright but only when compared to sound systems costing three times more, otherwise great. Partner them with Mordaunt Short speakers (902i's - £150) though as while Onkyos own speakers aren't bad, the MS's are a cut above. Not sure about super bass function - a bit of a gimmick but everything else is A*. Makes system just under £400 - worth every penny.