Bogner xtc 101b Marvel mod capacitor material suggestions | Rig-Talk
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
Different 80s Bogner modded Marshalls | The Gear Page
Bogner modded Marshall JCM800 2203 (skip to 0:23) - YouTube
Bogner Alchemist Tube Guitar Head 40 Watts (As Is For