Did you buy it new or used? If it's new, give it at least 40-60 hours of burned in time before judging it. Classe amps have been known for warm sounding and a good match with B&W speakers. Nothing sounds good right out of the box, IC cables and upgrade fuses needed burned-in time as well.
Amp sounds thin
I recently bought A Classe ca 200 amp.It is brand new looking inside and out, and seems in working order. But to me it sounds muted, dull, and uninvolving. It doesn't even sound as good as the thrift store amp its replacing A Yamaha built in 1974. Ive tried different speakers, interconnects and sources with little luck. I don't have another preamp so I cant rule out my preamp,but I can only say it sounded pretty good with my old amp. the only thing left I can think of is maybe it doesn't play well with existing equipment or I just don't like the sound of this perticular amp. My sources are a linn lp12 and a cary cd player, speakers B&W dm604, preamp PS audio 4.6 and cardas and straghtwire cables and interconnects. please help, I welcome any suggestions.