The amp that I'm impressed with and would love to hear is the Odyssey Stratos. A lot of members are talking about it and it's Class A/AB, stable to 2 ohms. Since these amps can be built to the customer's requirements, that's probably why the actual power of the amp is not specified.
And Odyssey is related to the high-end German brand "Symphonic Line."
I'm going to toss out a recommendation for an older amp, that IMHO, is a giant killer. A refurbished Sunfire 300. It's high power, high current, and not solid-state sounding. The later generation is fully balanced; I made the mistake of buying one from 1998 and it's single-ended. But, it sounds terrific; wide and deep soundstaging and very musical.
I see them going for about $1000.