Apples and oranges, again. Well, not really, but they are quite different. This is typical, like I've said before. Most, haven't had the listening experience with the Architectural series, and assume it's the same as the "True" line. It's not. The Sunfire True Signature is not the same (at all) as the Architectural. One is HT and one is specifically designed as a two channel music baby. The Architectural is tighter, faster, and more musical than the True. It's amazing and not talked about, enough.