I wrote to Hofner asking which strings they were using on the bass and got an interesting reply...
"Instruments such as the 500/8 bass use strings purchased in bulk by the manufacturer and this often varies according to supply and price. Therefore I cannot say for sure which strings were used and they may not be from a retail manufacturer anyway.
I believe D'Addario make pretty good strings and we often use these ourselves for our own basses."
So I am no wiser..! The strings feel quite a lot like TI Jazz rounds but I doubt if they would be putting such exotic strings on their basses.
"Instruments such as the 500/8 bass use strings purchased in bulk by the manufacturer and this often varies according to supply and price. Therefore I cannot say for sure which strings were used and they may not be from a retail manufacturer anyway.
I believe D'Addario make pretty good strings and we often use these ourselves for our own basses."
So I am no wiser..! The strings feel quite a lot like TI Jazz rounds but I doubt if they would be putting such exotic strings on their basses.