Military grade

One curious point about 'military grade' claim... A lot of the junk being sold as 'military grade' FAILED to meet requirements and is sold as scrap. Picked up by junk dealers and resold to eBay buyers as 'military grade' when it fact it never made the grade. How WOULD you know??? You can't. Except using it. Does it exceed? or is it the usual trash?        
I bought a spool of 12 gauge silver plated Teflon wire seven years ago. great stuff. The latest is pure junk. Same 'specs'. yet the recent purchase was worthless and was returned. Still on eBay.. Guy must have bought a thousand spools of the stuff.

I can neither confirm or deny the SR-71 max speed or max altitude. To summarize, mil spec wire or cables has nothing to do with sound quality.

I have a SR-71 hidden in my secret bunker. Next to my MIG-35. They like to argue Politics.

Of course they do. The MIG could blow things up while the Blackbird could only take pictures, but what pictures!

Also, wire from the bathyscaph Trieste went to the bottom of the Mariana's trench, now that's pressure treated! The sonics must be subterranean.