NAD T973 vs B&K 200.7

Any opinions which amp would be the better fit to drive B&W 803N & HTN-1? I have no need for balanced inputs so why pay for it. 200w vs 140w but room size is only 20 by 9.5 so not sure I really need 200W.
Well they both have great sound, however NAD receivers in recent years have had documented reliability issues. I would take the B&K.