I have only just used 2 of these cables on one rehearsal and a gig. I find it difficult to comment on sound quality as it is such a subjective subject. However, although they are quite thick, they are nonetheless flexible and the plugs are of a high quality and seem very sturdy and reasonably low profile. I also use 3 of the 3 metre versions of this cable. My above comments apply to those cables too. Recommended.