I don't have a technical explanation to guide you, nor do I expect all technical specs reflect the sound of the speaker cables. I can tell,you I have been going nuts for the past year in my own personal shoot out.
I JUST sold a pair of van den Hul D-352 Hybrid cables that may be what you are looking for. Many might say silver coated or silver cables are claimed to be bright the VDH were absolutely NOT yet retained the detail of the music and had a warm, solid low end which might pair well with the Martin Logans.
I used a pair of DH Labs (on loan from The Cable Company) (no affiliation) which were silver coated and were very bright to the extent I played about two songs before disconnecting.
The VDH were a little laid back for my Spendors but still a terrific cable. I'm still using some of their ICs in my system.
I JUST sold a pair of van den Hul D-352 Hybrid cables that may be what you are looking for. Many might say silver coated or silver cables are claimed to be bright the VDH were absolutely NOT yet retained the detail of the music and had a warm, solid low end which might pair well with the Martin Logans.
I used a pair of DH Labs (on loan from The Cable Company) (no affiliation) which were silver coated and were very bright to the extent I played about two songs before disconnecting.
The VDH were a little laid back for my Spendors but still a terrific cable. I'm still using some of their ICs in my system.