I've been running the 220 amp and novaPre duo for three years, using my iMac as the source via USB. I'm using them to run a nearfield miniMaggie setup with an REL t5 to round things out. I love it. Had an early issue with the USB circuit on the novaPre, but PT fixed it very promptly. I've found PT's customer service to be exemplary. (I sent them multiple emails regarding advice on cables, interconnects, power conditioning, power cords, etc. and they were always helpful). I haven't had any crackling issues.
I just took advantage of their trade-in promo towards a new nova300. Even with depreciation, total outlay is still 1500 less than the Grand Integrated, and should (I hope) sound better (according to reviews).
I just took advantage of their trade-in promo towards a new nova300. Even with depreciation, total outlay is still 1500 less than the Grand Integrated, and should (I hope) sound better (according to reviews).