I started out with Cardas Golden Cross on my 111e's. They are known for being rich & mellow, and they are. It was a good match, but after reading a review, I purchased a bi-wired pair of Homegrown Audio X-32, which are made of silver. These improved detail, and actually made the Cardas sound slightly muddy by comparison. But they emphatically do NOT sound bright. I have not given a thought to changing speaker wires since installing these. In addition, they are very reasonably priced. Check out their website, homegrownaudio.com
No affiliation, etc., but I recommend these highly for MBL speakers.
Dave