High end stereo preamps? Worth it?


So we know the higher end preamps don’t include dacs and phono stages.  Highly desirable noise free devices.  I hear wonderful things about these preamps, Luxman, Accuphase, Audio Research, etc.

Are they as good as represented? 


emergingsoul
Just asked for the link/s to "your claim" that 
  that the vast majority of professional reviewers regard (the Lams) as among the very best sounding amplifiers on the planet.
That's all.

Cheers George
Not going to dig out the references, but I used the Lamms as an example bc reviewers in Absolute Sound, Stereophile, and several other journals have said it—repeatedly—about every iteration of the Lamm SET products. I chose the Lamm example bc they have relatively high THD graphs and pros said they sound better than pretty much everything else out there. 
Benchmark LA4  Line stage device sounds interesting to simplify whatever a stereo preamp does.   For streaming only, seems ideal and wonder about amp matching issues.
Wish it came with a ht bypass.

Not going to dig out the references

Yes they have their following, but not among "vast majority of professional reviewers".

Cheers George