Exactly same quality and sound as the 5-string BEADG or 4-string EADG sets sold separately, to which this string is a complement.
Noticeably louder than the previous strings I used on the acoustic bass (metal core with synthetic flat wind). A lot of extraneous noise when shifting left hand; I guess this is normal for these types of string, I haven't much experience with acoustic strings. Sound is very pleasant apart from this.
They go out of tune very quickly when first installed.