dynaudio constour s3.4 and s5.4-anybody have an opinion

Just had a brief dem of dynaudio contour S3.4 and S5.4 speakers with non-naim electronics. On first listen, I liked them both. Anybody try them. I have a very large listening room and the 5.4s would certainly fill the space, though the 3.4s were pretty potent as well. Can they be driven with 135s? I also had a brief listen to the B&W 802s as well as the top of the line B&W, the 800S? Wasn`t all that impressed, the 802s sounded dull. May have been set up or ancillary equipment. Had meridien cdp, mark levinson preamp, and classe monoblocks (very big!). The salesman was a idiot. Really makes me appreciate naim dealers who are usually so smart about their wares. Anyhow, thought the dynaudio stuff sounded good. Especially the 5.4s. Anyone have any experience? david.