I use the sunfire for HT, and have demo'ed the classe ssp25 in its place. The sunfire has a large advantage in features (e.g. matrixed 7.1, a tuner, better display, multiple sub outs), and is more convenient to use. Sonically it was about a wash. I had them playing through Bryston amps and Snell speakers (Theta source). The Classe ssp30 is supposed to have more features, and be easier to use, than the ssp25. If you go used, the Classe unit can probably be had cheaper than the sunfire, new they're within $500 of each other. If you can go used, and can go just a tad more, the Theta Cassanova blows them all out of the water in terms of sound (although it's quite a pain to configure). Good luck.