Nordost Blue Heven vs Nordost Red Dawn?

Sorry guys. Another question here.

Basically I have the Blue Heaven speaker cables to my Sonus Faber Grand Piano older version (not the HOMES) driven by Classe CAP-100. Source is Sony XA7ES.

I was just wondering whether a change to either the Red Danws or the SPM Reference will give me a SIGNIFICANT improvement in sound quality. What I wouldn't like is to strain my ear hard to hear the differences.

I was looking at the SPM Reference since I guess the differences between the Blue Heaven and the Read Dawns will be quite minor. Thanks in advance.

Horrible I/C's...no shielding. Tried a set and hated them for the 2 weeks I kept them.

Kevin...regarding a significant improvement....no it won't. The color will change a bit, but then any orchestra sounds different in different halls...you'll get used to the new color, but will realize its not an upgrade at all. ...now if you were talking power cords...yes, the right ones will give a significant improvement.