Anything by Canare or Gepco are usually fine. Gepco is probably the most popular cable for broadcast installations, and Canare is on par with Mogami with their quad designs. It seems you are using the right cable for the right applications, so I wouldn't worry. You really only have to get picky when it comes to digital applications.
That being said, all REAL audio engineers use this stuf
Pear Cable Audio Cables - Home Audio - Anjou Analog Interconnect
kidding...
