A few weeks ago I bought a violin after auditioning it in a shop because it had fantastic tone and response. After playing it for a couple of weeks I put on a set of Evah Pirazzi silvers. Immediately it felt much better crossing strings, much quicker and more nimble. But the superb range of tones and exquisite dynamics were gone.
Previously, especially on the 2 lower strings, a huge range of tones could be evoked in the different bowing positions, including a highly flute-like sound playing sul tasto. Harmonics seemed to leap out in exciting ways and the instrument erupted in a most beautiful way depending on exactly how much energy was injected by the bow. The Evah Pirazzi's had maybe a tiny, tiny bit more top end volume but it was not superior in any way.
So now I want to find strings that give the best qualities of both sets. I'm quite sure the salesman didn't know what the original set was and they might even be of Chinese origin. They are much thinner than the Pirastro's and more silver in color. The Pirastro's have a more gold color. The ball end of the strings are cream-tan in color and have dark blue-purple wrappings. What strings are they? Or are there strings with similar qualities?
Gut strings. Try gut strings.
What color is the peg end? Have a look here https://www.lashofviolins.com/string-identification.htm or here https://www.thesoundpost.com/en/string-charts and see if anything looks familiar.
What many people don't realize is that the sound change that you get when you switch between any two sets of strings is partially attributable to the violin no longer being "in adjustment".
Thanks for all the responses. According to one of the charts mentioned by Irene the mystery strings windings match those of Larsen but the colors on the peg ends and ball color don't. So either they are a different model than those in the chart or they must be a knock off.
Sounds like they might be Larsen Tzigane strings. But the winding does suggest some sort of Larsen. The Jargar Superior are nice along with the Peter Infeld. You could give those a shot.
Thanks for the suggestions.
Here's another string identification chart. If those strings were Larsens then they used a Tzigane medium E or Il Cannone medium E, Soloist A, Tzigane (unknown tension) D and Virtuoso strong G. The G string seems to have a copper core or is specially treated. The variation in tensions might explain the comparative awkwardness when crossing strings.