@jaymark Since we have a few common amps, Ric’s modded GAN amp(s) and the CODA #16 let me add my 2 cents. The CODA S5.5 amp is supposed to be a bit like the #16 but supposedly a bit better on top (maybe less warmth). I have not heard it yet, but I am intrigued because I want something a tiny bit less warm than the #16 for my Livingroom. I am looking at monos since I want a bit of power, though I do not think these are true monos.
Another amp that I am giving a lot of consideration too (the leading contender) is the new SimAudio 761 North Collection. This is a stereo amp but is reportedly better sounding as monos. It is a more neutral sounding amp.
I just learned from another thread that KRELL is coming out with upgraded Duo amps. I love the Duo amps and these upgrades are likely trickle down from the top end KSA i400. Supposed to be around June timeframe (just a rumor from me).
I am going to demo this stuff in the summer.