Bryston, McIntosh, Krell or Mark Levinson

Thanks for your responses.  Any advice on the Sonics?  If you're familiar with them, how are they different from the Brystons?  I have read that they can be used only in a parallel mode, not bridged.  Any other differences?  Will Bryston, the Company, service them?  

Thanks for your suggestions; keep them coming.  I must admit though, that I'm a bit surprised at some of them.  Before buying my speakers, I did a lot of readings about them, mostly here.  And I read a lot of amplifier reviews on Stereophile (which somehow fueled my bias toward the behemoth amps).  One thing that would come up about the thiels was how hard they are to drive and that their impedance would drop down to, and remain at, 2 ohms.  So, I thought that nothing but Class A or Class AB amps would do. As you can see from my original post, I've only been considering high power behemoths.  So I'm surprised that some of you are using Class D amps to power yours.  As suggested, I have been researching the LSA Voyager 350 GAN amps. More surprising is that the LSA Voyager is said to be nicer than the Bryston 7B SST.

@yyzsantabarbara, it would be much appreciated if you could elaborate on why and how you find them to be nicer, because I'm seriously considering a pair of used 7B SST2's.   
  

    

First of all, thanks for your inputs.  I found and purchased a set of Bryston 7B ST's at a relatively good price.  I plan on sending them to Bryston for a checkup and/or repairs, if needed.  

I'm now looking for a preamp to go with them.  I'm also looking to get a CD player, a turntable and, maybe, a music server. My dilemma is whether to focus on my 2-channel setup, and then improve on the video portion later or to simply buy an A/V controller at the outset. 

Another thing, why are preamps so expensive?   

In short, what preamp do you recommend?