OP, I want to thank you for starting this thread. It got me thinking that the cables in my system were probably two decades old.
A mix of Nordost Blue heaven , Red dawn and Kimber hero. The Nordost were a little tizzy on the horns in my system and lacked a little bass. The kimber hero's excelled in base but lacked a little in the high end. I've been going back and forth using them on various locations trying to optimize.
Anyway, saw this thread and decided to try the MA4 -and ordered two set - they seem to add the attractive qualities of the Nordost and the kimbers .
A definite upgrade for not a lot of outlay. I like them and ordered two more sets to fill out the system
Thanks