I'd agree with pretty much everything gem said, including the PB12-ISD comments. I have a very large room and find it to be more than enough. Keep in mind that going to the /2 series makes for a much bigger and heavier box. Might be an issue for placement or if you have to move it, maybe not.
I have a lower-line Denon (1804). I like it very much, but do wish I had the bass management flexibility offered by the HK line (different crossovers for each channel). If I had it to do over again, I'd get that HK 635 linked to earlier, or try to find one at
The HK Factory Store. They sometimes liquidate refurbs on Ebay, too.
