DR 12-String Bass Strings
DR does not offer a set of strings for the 12-string bass in their regular product lines, but they will put together custom sets for guitar companies and endorsing artists.
Musicvox 12-string bass strings
Musicvox Guitars began offering 12-string bass string sets in 2016 from the Hi-Beams Lites bright stainless steel series. They are handmade in the USA and are long 34” scale.
Fundamentals: G .045, D .065, A .080, E .095
Octaves: G .018pb, D .025, A .035, E .040
Custom 12-string bass strings
Several of these Lo-Rider stainless steel string sets were provided to bassist Dionisio Mauro for use on his Musicvox MI-5 12-string bass.
Fundamentals: G .045, D .065, A .080, E .100
Octaves: G .018pb, D .025, A .035, E .045