Alan Yun (Silverline) demonstrates his speakers with a 7W 300B SET amp, and we drove our Sonata II's with the same power. Plenty of punch to drive everything, until you get to hard rock (a la Tool), where I personally felt like the bottom end just wasn't there enough. Not because of the speakers, but because of the amp. The Sonata II's are phenomenal speakers, but I'm not sure I'd start there.
Excuse me for taking your thread sideways, but my suggestion would be to upgrade your source first. We owned the Jolida--slightly modified--and I assure you there is a lot of room to grow from there. If you like the sound that you have (the BAT amps are terrific, IMO), I would start by replacing the Jolida. You might still want to upgrade your speakers as well (we went from the 6.2 to the Sonata II, in fact), but I'd first see just how much you can get out of the source. Those are my two cents worth.
Regards,
Howard
Excuse me for taking your thread sideways, but my suggestion would be to upgrade your source first. We owned the Jolida--slightly modified--and I assure you there is a lot of room to grow from there. If you like the sound that you have (the BAT amps are terrific, IMO), I would start by replacing the Jolida. You might still want to upgrade your speakers as well (we went from the 6.2 to the Sonata II, in fact), but I'd first see just how much you can get out of the source. Those are my two cents worth.
Regards,
Howard