What speaker cable for Martin Logan motion series (AMT) tweeter.

@bobrock +1 to what @soix said and what about the Mogami speaker cables do you not like now? What are you looking for more or less of out of the sound?

btw, for reference I also run ML Motion Series in my Home Theater and use silver-over-copper cables there (only) for improved dialogue, detail. However, my main two channel system is running custom speakers with large AMTs, and there I’m using all Cardas Grade1 copper paired with two different Class-A amp setups. Each cable setup helps to achieve different results for different reasons and use.  

Just wondering what your current thoughts are about your Mogamis (not bad cables), ... a bit more info about what you’d like to change is helpful.

@bobrock it seems like you’ve already got a good handle on trying different cables and helpful examples so far getting started. I got baited by a good friend 30+ years ago who had a massive supply, and later again with a few dealer friends who let me try different cables. All invaluable experiences yielding results I never expected.

Since you mentioned Mogami and what you hear, and above you mentioned AP Oval 9s, and Cardas being "too smooth"... What I can share is the AP cables and Cardas can sound noticeably different up & down the lineups with different designs of cables they offer. If you feel the Mogami are a bit lean on bass and midrange [in your system], some might say "neutral". By chance do you have access to a local dealer who will let you try different cables? Or, have you ever checked out the "lending library" service at TheCableCo?