Having just gone through this and purchased a few amps to try (used and new), and in borrowing a couple to try.
On a used budget- harman kardon signature series 2.1, debating selling mine, but can be found on eBay for nice prices. These were US built harman. Spectacular amp for the money.
New or high end used - butler 5150. Which is what I am going with for now. It's a bit more detailed than the harman, and maybe slightly more forward, but still warm.
NAD also warm, but I try to stick with non china built stuff where I can. I also don't like fan cooled amps.
I demo'd the parasound and thought it was a bit brighter than the others.
With lexicon, depends on the series... I have heard good things about the b&w signature stuff.
On a used budget- harman kardon signature series 2.1, debating selling mine, but can be found on eBay for nice prices. These were US built harman. Spectacular amp for the money.
New or high end used - butler 5150. Which is what I am going with for now. It's a bit more detailed than the harman, and maybe slightly more forward, but still warm.
NAD also warm, but I try to stick with non china built stuff where I can. I also don't like fan cooled amps.
I demo'd the parasound and thought it was a bit brighter than the others.
With lexicon, depends on the series... I have heard good things about the b&w signature stuff.