the sound on these is very bright and somewhat edgy, which is to be expected from a core that is not round. I will be honest, I really dislike these strings when tuned into E, but love them when tuned down to D. they feel a lot more medium, almost high tension, and not what I would call light at all, but overall the sound is quite interesting. I am a fan of a more vintage, mellow sound, and these are definitely more in the bright and punchy spectrum, although they do have plenty of depth as well. all in all extremely good strings, but not my kind of sound. The strings did put DR on the map for me, however, and I will most certainly try out their other offerings as well!