That C-J amp is way too nice to use with a pair of mediocre speakers. See if you can find a pair of used BBC LS5/3As. They won't shake the rafters, but the sound quality will be 5 star.
Your advice appreciated: Bookshelf Speakers for my Conrad Johnson CAV45-S2
Room 12 x 18, 8' ceiling, not seeking volume. Budget - speakers with stands - ~$800-900. These will not be my be-all and end-all speaker set... I'm just space-limited right now. We listen to classical, vocal, and jazz. Thank you!