Your amp is rated at 70 watts into 8 ohms. A little on the lean side for me. How easy are the newer B&W to drive in your space compared to your present speakers? I have owned a couple of these amps and I think the newer Mac's are better sounding to my ears. If yours is in good shape and you have the manual and original shipping box, it is still worth some OK $. You would like the 6600 much better. Just my 2 cents.
