Oh, man....a blast from the past.
I owned a Sovtek MiG 100. It was my first full tube amp head. I used it with a vintage (late 60ties puprle Marshall 4x10 cab) and later on with a JCM 900 angled cab.
It sounded fantastic. Somwhere in the vciinity of an old JCM 800.
They were cheap back then. I bought mine new in the early 90ties for like 300 or so. Sold it later for more
Wel, even though I have some really good vintage fender amps nowadays, I still a kind of miss my old Sovtek MiG 100, the loudest amp I ever owned....
Wel the low gain stage goes over one 12ax7 (pre amp) to the quad of 6L6 power tubes. The high gain stage goes over 3x 12ax7's....very nice. Sounded really good with almost every guitar....And I took pedals very, very good. Think of it as a very powerfull BF Bassman.....
The controls are spartan, but what do you need more. just two inputs (low and High) volume, master, treble, middle and bass....no FX loop, two speaker jacks (8 and 16 Ohm) stand by ans power switch...
If you are not into super high gain, like classic rock tones and a lot of power, this is it....
Also their MiG 50 and MiG 60 are very nice....