Dieter Hopf – one of the most innovative guitar builders of all times – made this invention around 1980. With two patented features: f.v.t.s. (Free Vibrating Top System) and extra sound holes in the bridge.
When I found this guitar in 2018 the bridge looked as in picture 17 – 19. I was confused and wasn't able to find any answers online. &... read more
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