Long-time listener, first-time poster. Thanks to everyone for the knowledge.
This isn't directly on topic, but I thought I'd mention that I spent some time comparing the LSi25s and LSi15s and ended up going with the 15s. The sound quality is nearly identical, with the only difference I could discern coming from the fact that the 25s have a powered sub. If you already have a subwoofer for your home theatre, there may not be much to be gained with the 25s. The 15s go pretty low, too, and work pretty well for 2 channel stereo without a sub.
If you're interested, check out the Polk Club forums. There's a lot of stuff on the 25s and 15s.
http://clubpolk.polkaudio.com/forum/
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