Raven Audio Nighthawk MK3

@stonecutter54,
I don’t know the extent of your tube amplifier experience but I feel you’ll be pleasantly surprised. I own two tube amplifiers that are the common/popular circuit choice for tubes. Class AB, push pull using the typical group of power tubes (el34, KT88,6550 etc.). Raven fits this topology category.

A 3rd amplifier is 300b SET (thus class A by default). All 3 amplifiers sound terrific and authentic reproducing electronic instruments in general and most certainly electric blues and rock guitar. The key factor for you is to have a well suited speaker to pair with a good tube amplifier. You’ll be just fine. Tubes are superb with acoustic instruments but you are not limited to them.
Charles

Millercarbon is right again...per usual. I do listen to a wide variety of music, including some Rush, Grand Funk Railroad, J. Geils Band, Aerosmith, but who can beat some Antonio Carlos Jobin, Bebel Gilberto, and Maria Rita? Debussy can shine in amazing ways after some dark Shostakovich. Please don't leave out O2'L, Christine and the Queens, RBTSKT, or Supreme Beings of Leisure. The Raven Nighthawk has earned its 'street cred' with a barrage of eclectic challenges. My comfort zone includes the downtempo/acid jazz/dub chill genre: think Bugge Wesseltoft, Bittersweet, and Sweetback. However, mono LP's with Frank Sinatra and Don Scalatta Band are pure audiophile heaven (despite their often weird and uneven recording methods). My Yamaha S2100 CD player interacts well with the Nighthawk resulting in music so jarringly crisp and quick it often makes my head snap up in amazement. Tube rolling has revealed that the sound textures can be infinitely fine tuned to match personal taste and equipment synergy. This hobby has been a very rewarding one.   

Yeah and Dave Thompson has quite the tube collection, and from what I hear he knows them all like the back of his hand. 

Its a long story....worked at stereo store back in the day. McIntosh dealer, Nakamichi, etc. So we tried everything. Luxman was hot then too. Lived with McIntosh MC 2105 with Luxman C-1010 pre for quite a while. Crook stole my new Bang and Olufsen turntable and when cops almost got him he threw it in the river!!! Even so, he forgot to grab European DIN connecter. LOL Recently owned Cambridge Audio 651r which has direct bypass feature to skip AV junk circuitry. Owned a Class A power amp too but can't remember details.  I had previously been afraid of tube stuff. (Not alone on that I don't think!) Anyway, Dave Thompson has personally hooked me up on tubes. Has made an amazing difference. He loves his Raven Heads! And let me say, for any American to try and build USA with all US parts is a commitment which deserves our admiration. The unscrupulous tactics from Chinese companies has changed my mind about buying USA  products. (Besides Raven Audio customer service is tremendous.)