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I don't have experience with any of those amps but do own the Raven Audio Blackhawk LE. I've owned tube amps from Dynaco, AES/Cary, Rogue, Cayin, Cary and Raven. The Blackhawk LE is my favorite by a considerable margin. It sounds superb, the build quality is exceptional and the support from owner Dave Thomson is by far the best I've had in 50 years of swapping gear.
There’s a new 20wpc (about twice the power of most of his other stuff) Dennis Had Firebottle SEP (single ended pentode) stereo amp on Ebay...I own one of his 12wpc amps and it’s astonishingly good, certainly among the finest hand made tube amps out there and less expensive than it ought to be relative to other stuff in the marketplace.