I'm borrowing a bass right now that has some great sounding roundwound strings. The owner (a guitar player who hardly plays bass) bought the bass with these strings on it. I tried using the TB search engine to confirm or deny what they are but nothing was conclusive. I'd love to find out what they are so I can buy a set for my own bass.
These strings have red silk at *both* ends and the ball ends are shiny silver in colour and have rounded edges.
They've got a bright sound with good fundamental tone, shiny top end and strong mids.
When comparing them to the D'Addario's on my own bass, I would say they have a rougher feel with a similar shiny appearance.
Well, rotosounds are shiny, rough and have red silked ends . Can't remember about the ball ends though , i never see them, they are loaded inside my brigde .
I suppose they could be rotos, i love those strings! To me, they have a very piano like sound with growly mids and a brilliant treble!
. Can't remember about the ball ends though 
, i never see them, they are loaded inside my brigde 
.
