Science Amps take on the Matamp, in a flavorful 200w package with power scaling / attenuating loudness knob. Great for guitar or bass, I used it with a baritone.
Hiwatt, matamp, marshall, orange, 4x12, ampeg, tube amp, head, fender, diezel, bogner, fryette, vht, metal, doom, gibson les paul, etc.