I have a violin with a warm and rich tone. It is a very resonant instrument, but I would say that the sound is fairly unfocused. I have already used Evah Pirazzis and Peter Infelds, and I definitely preferred the Evah Pirazzis over the Pi strings. What strings would you suggest that I get to have a more focused sound, while keeping the richness and warmth? I generally play classical violin and I’m at the grade 9 level, however I also play some fiddle and folk music.
If you have access to a pro violin shop you should take your instrument in and get their opinion.
The best C string for a 5 string violin I found was a Thomastik Vision:
I used the VI05 Vision violin C-string for a while, but I've found the the Dominant 14" viola C has more power and core to the sound. Metal C-strings for short lengths didn't match the synthetic strings I used on G,D, and A... so the Dominant is the best I've found so far.
I agree with Andrew. Your best bet is to go to your luthier, let him/her listen to your violin with the strings you currently use, and ask what strings would best produce the sound you seek. We cannot hear your instrument with its current strings, and different strings sound different on different violins. So, any suggestions people have may or may not work for you. Good luck!
Perpetuals are pretty great.
Sounds like your violin is out of adjustment if you can't get a focused sound. Get it adjusted first with the strings you have on and then your luthier could suggest some strings. You could also try the Jargar Superior.
IMHO, i'd put the soundpost nearer to the bridge foot, before changing the strings.
This is sometimes a high strung tension filled subject. Eventually everything stretches into place.