FWIW you are not the first person who tried to put together a system based on magazine reviews and ended up with something hard to listen to for more than a few minutes. Magazine reviewers seem to always be impressed with "detail", the wow factor! Mostly what they are hearing is excessive detail, detail that is not in balance with the detail on the source. It starts with the sources and ends with the speakers. I don't know how good you can make those B&W's sound, but you won't make them warmer with the SF Line and Power amps. These were just plain cold, tonally speaking.
You don't ID your sources, but I expect from you other selections, if based on mag reviews, they could also add to the brightness you hear. What are they anyway?
Additionally, you don't discuss at all your room and speaker/listening positions and what you have done in your room to make your system sound its best.
All of these things play an important role in your end result. Unfortunately its not as simple as just plugging in a new pre-amp and amp based on others opinions.
If you want to lay it all out here I'm sure many knowlegable people will be happy to help you, but IMHO as it stands now all you will get is responses which my be of no benefit to you whatsoever, including mine.
You don't ID your sources, but I expect from you other selections, if based on mag reviews, they could also add to the brightness you hear. What are they anyway?
Additionally, you don't discuss at all your room and speaker/listening positions and what you have done in your room to make your system sound its best.
All of these things play an important role in your end result. Unfortunately its not as simple as just plugging in a new pre-amp and amp based on others opinions.
If you want to lay it all out here I'm sure many knowlegable people will be happy to help you, but IMHO as it stands now all you will get is responses which my be of no benefit to you whatsoever, including mine.