Help - Cable for High End System - M7s and Block Audio Mono A

I think you and he are in the realm of dealer recommendations, and multiple trials/demos to get the sound he is looking for. I assume that is where the speakers and amps came from? 

But one suggestion I can add is he may not need speaker "cables", if he has mono blocks, as long "jumpers" may work, and one can save many thousands by not looping up an extra 2m of unnecessary cable behind the speaker. Don’t think the dealers encourage this though. 

For example, Nordost Valhalla 2 make a 27" jumper for about $6000 US. 

Another voice in the cyberspace wilderness for Cardas Clear Beyond.  Not to confuse things but there are many fine ones with subtle differences. Room A#1 variable. 

Mclinnguy brings up a good point on jumpers though if that doesn’t work, and based on what you’ve outlined, Nordost V2 might be a good choice.  However, they may also fall outside the upper limit of your proposed budget depending on length. They’re certainly very good cables - neutral, resolving and very smooth. Highly recommended.

I can also comfortably recommend Matthew Bond (founder of TARA Labs) Audio GSC cables at this level. Full disclosure - it’s what I purchased so I’m biased. That said, I found them to be a tad more fleshed out than the Nordost. No boxes and they’re flexible. Please note they have large/thick spades which won’t work on all binding posts. It’s possible Matthew can send them out w/ bananas (which I wish I had asked when i ordered them). Matthew’s a good guy - worth a phone call to chat with him. 

Given what I’ve heard from Magico speakers, I’d lean toward Matthew’s cables though Nordost V2 will surely bring out all of the performance of which those speakers are capable. 

Best,

Maybe consider Shinyata Delta. I’ve owned nordost and they are great cables but with the magico might be too much of a good thing. The best cables do nothing but transmit the signal

Also Shunyata Research Alpha V2 Speaker Cables they are thick but very bendy.