Exactly what I needed to upgrade my Contemporary Series Hofner violin bass.
The Bass sounds great now, and looks a little more like the real thing.
I had a Nashville luthier install it for me, as it was a little bit confusing for me to solder in the German made panel after looking at the original Made in China electronics, which are inferior parts. Also, the screws for the German Panel are slightly smaller, so the holes had to be filled and re-drilled. All in all about a $90 USD charge to install the panel and set up the bass for playability - completely worth it. Thanks Thomann!