For years, I have dreamed of going to dual subs. Yesterday, I finally got to try dual subs for myself, and the experience was a little different than I expected. No regrets, but a few observations. First of all, when I re-ran Audyssey on my pre-pro (Marantz AV7703), it had me set the volume level of each sub independently. But then during calibration, it did not send test tones to each sub individually. It sent the test tone to both simultaneously. Correct me if I'm wrong, but … that seems to imply that even with two subs, I am getting mono bass. One of the reasons I wanted two subs was to get true stereo bass. Also, I was leery of going to a ported sub, but am happy to report that the SVS PB-2000 really deserves its rave reviews. I listened to both music and movies, and did not detect any sloppiness or overhang in the bass. If anything, bass seemed a little bit leaner than in my previous setup (single Velodyne FSR-15). Perhaps it was that phenomenon where better bass sounds like a little less bass. Now with plenty of bass on tap, it became obvious that recording and mixing of bass has improved dramatically in the last 20-30 years. Newer recordings and movies had bass in abundance compared to recordings from the '80s and '90s.