4-string bass guitar from Sandberg (Bass)
Sandberg introduces the JJ-Umbo, a relic-looking electric bass with brand new electronics.
![[Musikmesse] Sandberg California JJ-Umbo](https://img.audiofanzine.com/img/product/normal/8/0/80465.jpg?fm=pjpg&w=334&h=243&fit=contain&s=6ff71564300c438e28cb4e8a4fb7cb75)