Have B&W 603 s3s for my left and right main speakers (bi-amped and bi-wired) and a B&W LCR600 as my center channel.
Surround duty is pulled by a terrific old pair of NHT 1.3As (they bottom out around 52 Hz while the B&Ws get down into the mid-30s, I believe).
Pushing the speakers I have a Pioneer Elite 82TXS (plus lots more letters), but that should give you a clear enough picture of what I have for a receiver.
I do have a sub, but it's not a very good one as it bottoms out around 35 Hz.
The room is pretty large, about 25 feet by 25 feet (only 60% of it is my listening area, but it opens into the dining area and kitchen for the balance remaining 40%).
Anyhow, here's what I'm considering:
Hsu Research
Outlaw Audio
B&W ASW610
I think the Hsu and the Outlaw will get me down a little deeper and fuller, but I do like that the B&W will be "paired" with my front channels a little better.
Another point of discussion: does it matter as much to choose a sub from the same manufacturer for a better match among the drivers? I know the guy who wants to sell me the B&W sub wants me to believe that.
While these speakers do double duty for home theater and audio, my preference would be to have a more musical sub. I tend to listen more to pop and some occasional jazz, so it'd be nice to catch the bottom end of an upright bass, but I'm not going to be listening to pipe organ music.
Price range? Less than $600.
Thanks.