Summary: I wanted a small subwoofer to use with the speakers in my office for music listening. The office speakers are among the best small speakers made, being both quick and musical. Other subwoofers I have used were far too boomy and were better suited for home theater use. This subwoofer has a switch for either music or home theater listening and it works. It provides very accurate bass and extends cleanly down to below 40 Hz.
Summary: I was never a big fan of subwoofers, especially the one that came with our original system. A friend recommended I spend the money on a proper subwoofer and I would recognize the difference. After some internet research, The Super 8 was within my price range so I took the plunge. Consider me impressed.
Summary: I got this because I needed to build a low cost audiophile system (an oxymoron?) for a second house. It was highly rated by Stereophile and fit my self-imposed budget. It really delivers and pairs well with the PSB Alpha B1 mains. I have not used the Stereophile test CD on it yet to determine quantitatively how it performs, but my ears tell me it does pretty well.