Three of my favorite amps.
THD Electronics The THD amps are interesting. They use a design which lets the user swap in any tubes... or any
combination of tubes to get a very wide range of tones. I own a Univalve, which uses only one power tube so it's a little more limited, but still very versatile.
Reinhardt Amps
The Reinhardt amps are built by one guy. Bob. They're great!
Fuchs Audio Technology | Handcrafted Tube Boutique Guitar Amplification | Plush Pedals | Home
The Fuchs amps are glorious. Moslty Dumble clones, I believe. Just glorious tone.