I got the RC-10s yesterday .. they came with a broken binding post, but that was a shipping issue, with no reflection on the build quality.
Before I sent them back, I hooked them up and played some music off of my ipod and wow! I didn't have the volume cranked, because the manual warns against doing so before they are broken in, but they had a great sound to them.
Very clear and crisp highs, and an excellent mid range for the size of the speaker. The bass was more than expected from a small bookshelf (I have a sub hooked up anyways). I can't wait for my new one's to come in so I can break them in.
Anybody who is looking for a good sounding pair of bookshelves for about $300 should strongly consider them.