Guidance on Speaker Wire


I’m looking for guidance on some speaker wires and have tentatively settled in on Transparent High Performance 10-2 with the Transparent 10-2 Brick Network.  My biggest issue is I have long runs from my amps to the speakers at approximately 60 feet each.  Due to size of my system it is not possible to move my equipment any closer to the speakers.  
My amps are 1.2 KWh McIntosh Mono’s and my Speakers are Martin Logan Electrosatic ESL 15A’s. I also have 2 Martin Logan Force 12” subwoofers that are used for home theater. 
Thanks!!
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#4 or #6 welding cable would be a good and inexpensive choice 
I use Mogami speaker cables exclusively.  They are used in studios and should accommodate longer runs.
check with Auditorium23 in Germany, their cable is designed for minimum resistance and very high quality. Not sure though whether they will ship that length. Better solution would be having the amps behind the speakers on balanced interconnects
+1 @elliottbnewcombjr 
For better performance, it is much better having long interconnect cables (balanced if possible) rather than long speaker cables. Generally, you should try to keep speakers cables as short as possible 
Absolutely correct kennyc.  If space/arrangements allow, move just the power amps nearer the speakers and keep the long runs at line level where issues are easier?  Yes, balanced, as professionals use for long runs.
If this is impossible, what about active speakers with power amps on board?