Steampunk Audio Labs - Reinhold Bogner and Bogner brutality are huge here at SteamPunk! Bogner XTC 101A Bogner Uberschall rev green Bogner Uberschall TwinJet | Facebook
Used Bogner Uberschall Revision Blue
Uberschall: A Study In Gain Pt. 2 (Bogner vs. Mesa) - YouTube
Bogner Uberschall Mk2 100-watt 2-channel Tube Head - EL34 Version | Sweetwater
Bogner Uberschall Mk2 100-watt 2-channel Tube Head - EL34 Version | Sweetwater