as an aperion 633-t owner I'm a little bias, but I feel the fit and finish of the aperions are much better(real chery veneer or a high gloss black/piano finish VS a vinyl laminate with picture of wood printed on it) as for sound, I returned a set of polk rti8's based on sound quality alone.( a much smoother more detailed sound you can easily find your self listening to for hours at a time. not to mention aperion packages their stuff for shipment beter than any company I've ever seen, and I manage a retail store and recieve shipments from dozens of companies.