I have a Carvin B40 passive bass that presently has round wounds on it. I don’t tend to like rounds and have a number of basses with Flats on them and would like to try something different. My favorite sound is La Bella DTF’s on my P-bass into an Ampeg PF20t/PF112HLF so obviously I kinda like old school thump. My question is what tape wound strings have the deepest tone without having to modify the nut on my bass? Also what is the best online source for bass strings these days? Any advice would be greatly appreciated.

