Is my system bottlenecked?

I think you should consider S7horton's idea of a Classe 200 for the front channels and then you can use an MCA30 for the center and surrounds. I assume you have a combo music/HT set-up. I have similar equipment for my HT setup (AVM2 plus MCA30) but I use the HT pass though on the AVM2 to run the front 2 channels to my MAC tube amp. My main 2 channel music setp-up is a MAC tube pre and amp. I listen to 2 channel way more than HT so the set-up is great. I've owned B&W speakers and also a Classe 200. I think they would be a great match. I'm not so sure the MCA30 is a great match for your B&W's.

Mike.

I agree not enough power, those speakers are not your typical 95dB+ speakers.

Depends what your GOALS are (louder, cleaner, better imaging, etc.), but you might look into improving your room. Often the room is the weak link.

Bob Wood
http://www.GreatHomeTheater.com