@toddcowles - The B&W D2 is going to be a slightly warm/soft response in the midrange because of the Kevlar. The B&K 200.7 is an great amp with high current, but it is extremely warm sounding (I had this exact amp in the past). I can totally see where the combination of these two items would sound very lackluster. The McIntosh would probably do better, but still the McIntosh is not a very fast amplifier - McIntosh will lean toward a full and warm midrange (but probably not as extreme as B&K). The D2 series would do much better with amps such as Krell, Classe (new stuff), or Bryston or Plinius.
The B&W D2 series really needs a high current amp with very fast resolution. The Cambridge CXR 200 should be just fine as the Cambridge has a faster and more dynamic sonic signature.