Von Schweikert VR4 SR IV

A nice upgrade. However, you might also consider a higher model PMC with a bigger woofer. It really depends on what you dislike about the OB1's? (Value for money the OB1 is quite hard to beat in its price range.) My suggestion would be to audition Energy Veritas too. G'luck!

While I agree that many (perhaps most) consumer speakers sound compressed especially at high levels (horns are much better in this regard). I am not sure you necessarily have to go to a horn speaker design to create the SPL levels and dynamic range typical of live sound. Home venues are a lot smaller than most concert settings. Besides I don't see any requirement for live music in the initial thread.