Hidden in back is his 1974 Bogner-modded Marshall. | Bogner, Halestorm, Rigs
USED Bogner Amps HELIOS 50 watt head - Modified Smallbox Marshall Plex | Make'n Music
Bogner Helios 100 Head Guitar Amplifier - Musamaailma
1982 Marshall 2204 with Reinhold Bogner Mod from the 80s | Used by Mathias Dieth of U.D.O. , Sinner and Gravestone | Has anyone ever played a Bogner modded Marshall before? : r/metalguitar