That was an interesting read. I've noticed that the claimed WPC of my receiver adds up to more than the rated power of the transformer. I've also wondered why some amplifiers claim more power than you could get out of 15 amps. I wasn't even aware of the 12 amp limit and hadn't considered inefficiencies in the amplifier.
I did not look at any tube preamps for the same reason that Car and Driver is not reporting on buggy whips. - David A. Rich, PhD
The audiophile reviewer will pick the most warped sound as his reference for sonic purity. - GranteedEV
Receiver: Marantz SR8002 Speakers: Paradigm Studio 20, Studio CC-490, Studio 10 Subwoofer: HSU VTF-3 Mk3 Sources: Oppo BDP-93, Xbox360 TV: Panasonic TC-P50V10