Hi, Keith. I would think it difficult to find any 6, 8 or even 10 gauge house wire that has even one of these attributes, especially the single crystal one.
For example, I have three 25ft. runs of 10ga 99.99% oxegen-free solid core copper stored away (taken from my previous house and dedicated room) but that was custom made.
And even that solid core 10 gauge with the 4 9's was difficult to find on the open market just a few years ago as I recall several people, including a prominent amp mfg'er, inquiring with me wanting to know where they could obtain that same wire because they already searched high and low.
My research with high quality wiring of this type is a few years old and maybe some of this stuff is now more readily available today than it was then.
Anyway, that's why this time around I just settled for Lowe's solid core copper 250 ft. spool of 12ga and had the whole spool double-cryo-treated.
Perhaps you could do the same with the 6 gauge.
On the other hand, if you did find exactly what you're looking for in a 6 gauge I wouldn't be surprised that you'd probably pay a huge (I mean HUGE) markup fee.
-IMO
For example, I have three 25ft. runs of 10ga 99.99% oxegen-free solid core copper stored away (taken from my previous house and dedicated room) but that was custom made.
And even that solid core 10 gauge with the 4 9's was difficult to find on the open market just a few years ago as I recall several people, including a prominent amp mfg'er, inquiring with me wanting to know where they could obtain that same wire because they already searched high and low.
My research with high quality wiring of this type is a few years old and maybe some of this stuff is now more readily available today than it was then.
Anyway, that's why this time around I just settled for Lowe's solid core copper 250 ft. spool of 12ga and had the whole spool double-cryo-treated.
Perhaps you could do the same with the 6 gauge.
On the other hand, if you did find exactly what you're looking for in a 6 gauge I wouldn't be surprised that you'd probably pay a huge (I mean HUGE) markup fee.
-IMO