After many years of trying various guitar strings from all the known companies out there, I am happy to say that my search is finally over. First, round core strings seem to bring out more of the fundamental notes, they have a bit more weight to them. But these here made by Curt Mangan simply top the list. My guitars play louder, and the feel of these, their tension, and the sensitivity to my dynamics that these strings offer is simply the best I have encountered in my 35 years of playing. Do yourself a favor and give these a try. I for my part will not play any other strings...ever!

tried a set of round core on my electric and loved it! Complete game changer! Had to get a set for my acoustic! It never has sounded better. Brilliantly balanced tone!

Beautifully balanced and brilliant tone!

Smooth, Sweet Tone, Loud

I find these to be the answer to the "stiffness" issue on my Breedlove Jumbo. Have not used round core in years. They seem well balanced and defined. I substituted the high E and B strings with 11.5 and 15.5. I'll purchase more!