When I purchase a cello at the violin shop, have my keeper so no more purchasing, it comes with Tungsten Spirocore C and G, and Larsen D and A. Personally, I do not like these. I never think to request a different set, which they would. They sound nice in their studio with its wonderful acoustics, but not in my house, which is where I play it. 

I removed the set from my Goronok and installed the D’Addario Kaplans. There was not much use on the set on the cello. My instructor had mentioned he was saving uo for a set just like this one time when we were talking. He has limited funds, being a college music major student, to teach music.

I packaged each string in a separate baggy and labeled it. Then I put them all in one little baggie.

Wednesday, I said to my instructor, “I have something for you.” 

Then I gave him the bag. I told him I got tired of dealing with that sound that I disliked, that was not caused by me, and changed my cello strings. He was so pleased. You saved me around $300. I told him, they have a lot of life left and that I have backups. I think I might have the set I removed from the first cello I bought from the violin shop, that I traded in for my Goronok. If I do, I will bring them in, too. Bad back right now and can’t do my cello or poke around in the drawer. He is very well aware, as are most of you, how I detest that combination. Just does not work in my house. Lovely in the studio. He is also very well aware, as are most if you, how those sounds and instruments’ general tones are very much bothersome to me if not in tune with what I like.

I didn’t buy the Kaplans. D’ADdario sent them to me, along with a set of Helicore. I just have to let them know how I like them, which I will do. They sent them because I received a faulty string in a set of another strings of theirs. 

Also, @Irv I still have not forgotten about the used Preludes(?). When I took them off the cello they were on, I broke the A string. This cello is hard to change because of the pegs. The previous owner put the guitar (?) type gears on him. The gears stick out to the back. Well, do NOT ever do that!

When I change the strings I lay the cello on its back on the sofa or my bed. Well, the pegs are now on the surface, not out to the side. To loosen the strings to remove, I lift the scroll end and turn. It feels odd and I turned it the wrong way. Ping! The A string broke. I do think I have another used one for you. I will look when my back is rested and I am looking for the other set. I think I have the other Preludes from that set, but I need to get the other A Prelude that I am sure I have. After I get it, I will PM you for your address.

So, my point, if you have more used strings than you need, maybe someone would want them, even if just a little life left. The person can use them to see if that brand/model will sound right on their instrument. Preludes are muffled on all my cellos. I have heard them on other cellos and they sounded nice.