Is it even possible to say "Levisnon vs Bryston vs Audio Research" without being pretentious? ;-)
I can't help you because I don't have a lot of experience but I have an old AR LS-16 tube pre-amp. I think it was one of their lower end pre-amps.
It runs through a Madrigal Proceed HPA2 (Dual Monaural, 250 wpc) which was designed by Levinson.
The combo was well researched to go with the speakers I have.
It works for me.
Sound is warm but not overly warm or colored. Bass is superbly tight and clear. Highs are distinct without being overly bright or tinny.
That is the sum total of my experience with these brands.
I can't help you because I don't have a lot of experience but I have an old AR LS-16 tube pre-amp. I think it was one of their lower end pre-amps.
It runs through a Madrigal Proceed HPA2 (Dual Monaural, 250 wpc) which was designed by Levinson.
The combo was well researched to go with the speakers I have.
It works for me.
Sound is warm but not overly warm or colored. Bass is superbly tight and clear. Highs are distinct without being overly bright or tinny.
That is the sum total of my experience with these brands.