Summary: I've defended the Synergy line in the past but have come to the conclusion you definitely get what you pay for...especially with Klipsch. The B20s are cheap Best Buy tin cans. I was using the B20s and the C20 center along with my prized vintage KG 3.2 fronts and it totally ruined the sound with boxy mid ranged highs.
Summary: These are good speakers but would never use them as main front bookshelves. Maybe additional back speakers. Klipsch are good speakers, and were much better 25 years ago. But there are far superior speakers around the same price point now. Not sold at BB.