I am looking to get a new amplifier to drive my B&W 601-S2's. I've narrowed it down to the Parasound HCA-750A or the Rotel RB-971. The Parasound will cost me $100 more than the Rotel. If it was up to you, what would you chose? Any comments would be greatly appreciated. In case you're wondering, this is for a music only system, and i'll be making my own pre-amp (Class-A).