Re: 170SE with a Classic 340c?
while i haven't heard the SEs matched with classics, i know there a few around these boards doing just that, and i have not heard any complaints. i also remember davef saying that the new SEs will work just fine with the classics when they were released.
there's also the option of having your classics upgraded to SEs if you're really worried about it, but i think you'll be fine.
CMT-340SE2 Mains & Center, CBM-170SE Surrounds, Rythmik F15, Emotiva XMC-1, Emotiva XPA-5