I've got the 603 with the 121's. I had the Dali's for a while before this, but exchanged them for the 121's as the Dali's just lack a little in the bass department, the 121's are very impressive for the money. Lots of people pair it with BX2's. I haven't been able to do a direct comparisom as I couldn't find a dealer that stocked these was well as the Wharfdales. Possibly the BX2'sare better for your music, but others might be better to advise you on that, the Wharfdales just look so rock n roll! See if you can do a home trial, thats the best way to know for sure if they're right for you.