I would recommend Audioquest Rocket 44 "no frills" version from Audio Advisor. These are significantly cheaper than the retail version of the Audioquest cables. They do have a "premium no frills" version that uses better terminations (spades/bananas). They are multiple awg solid-core conductors. Maybe not OCC copper, but very good copper. The Rocket 88 uses better copper and is approaching OCC quality (but is more expensive). These are essentially 13awg speaker cables.
https://www.audioadvisor.com/prodinfo.asp?number=AQRO44NF
If the specific length you need is not shown, just give them a call. They can make these at any length you want. They just pull the wire off a large spool and cut/terminate to your specifications.
Audio Envy might use OCC copper, but they do not publish the awg and it's almost definite that it's stranded (not solid core). I'm not saying anything negative about Audio Envy and I'm sure they are good cables, but solid-core has always performed better in my tests. It just sounds more solid (no pun intended) and less harsh. Stranded cable may sound good, but presents a sound that is not quite as natural.
https://www.audioadvisor.com/prodinfo.asp?number=AQRO44NF
If the specific length you need is not shown, just give them a call. They can make these at any length you want. They just pull the wire off a large spool and cut/terminate to your specifications.
Audio Envy might use OCC copper, but they do not publish the awg and it's almost definite that it's stranded (not solid core). I'm not saying anything negative about Audio Envy and I'm sure they are good cables, but solid-core has always performed better in my tests. It just sounds more solid (no pun intended) and less harsh. Stranded cable may sound good, but presents a sound that is not quite as natural.