I've posted a review of the C500 that you may want to check out in the review section of this site. I've also heard the C500 driving the Beethovens and that was very nice indeed. I think it's one of the very best amplifiers for the entire VA line, including the new reference speaker, "The Music", which I've heard driven by the Capri/312 combo, which shares much with the C500.
Dave
Dave