Editing Jonas Hellborg (section)

==Musical equipment==
[[File:Jonas Hellborg 2011.JPG|219px|thumb|Hellborg with his signature Warwick bass model, Innsbruck 2011]]
Hellborg has been involved in instrument design from early in his career. His work includes a signature model for [[Aria (guitar company)|Aria]], the first ever biamped bass amplifier (in cooperation with Italian company FBT), a double neck bass, fretted and fretless, for British company [[Wal (bass)|Wal]] in 1983, and, in 1984, an acoustic bass in collaboration with master luthier [[Abraham Wechter]].

After working with a half dozen other companies with signature models and inventions he, together with the German manufacturer [[Warwick (bass guitar)|Warwick]], created a new bass and a high end line of bass amplification.<ref>{{cite news|author=Friedland, Ed|url=http://jazztimes.com/articles/17989-jonas-hellborg-take-the-reins|title=Jonas Hellborg: Take the Reins|newspaper=[[JazzTimes]]|date=June 2008|access-date=17 April 2015|archive-date=22 February 2015|archive-url=https://web.archive.org/web/20150222223846/http://jazztimes.com/articles/17989-jonas-hellborg-take-the-reins|url-status=live}}</ref>

Hellborg published two books in the early '80s with Music Sales of London, one on [[slap bass]] called ''Thumb Bassics'', and a chord book called ''Chord Bassics''.