Your Favorite Sounding Power Amp, $5000 US Retail max.

Bel Canto e.One REF501S Just hitting the market now.

Bought it for under $2000.00 Black background and great imaging, sound stage, articulate, accurate and fast bass.

Very close second to my AH Qualiton X200.

I am a tube bot.

A CODA #8 WITHOUT meters is $5200 and highly recommended. I have this in my office.

I just traded my Parasound A21+ for a KRELL Duo 125XD. Cost $3.1K. CODA and KRELL is better than the Parasound, though the A21+ is pretty good.

Van Alstine DVA M225 monoblocks - ~$3400 for the pair.  Factory direct made in the USA.  Amazing performance and value for the money.  Compares favorably to high-end monoblocks - many have compared to Pass Labs.  Read the Part-Time Audiophile Review.  

I have been extremely happy with my LSA Voyager 350 GaN amp, which is on sale right now for ~$2600, including a power cord. If you want to spend double that though I doubt you will get 25% better performance is the new AGD amp MSRP ~ $5,000

https://www.underwoodhifi.com/products/lsa-amplifiers 

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The LSA Voyager 350 GAN is really good. It does not have as much bass power as the CODA #8 but it has a bit more detail. I sold the Voyager and kept the CODA #8 since I wanted the extra bass.