The Duelund wire, or any wire for that matter, cannot be used as an equalizer etc...but this wire can take the edge off the highs and indeed give a slightly more natural sound with a tad of warmth. No, it will not transform the speaker.
Some me like me find DIY fun, so go for it if the project is fun for you.
Some me like me find DIY fun, so go for it if the project is fun for you.