For those with amp/cabinet switchers.....

[Mikeyboyeee]

What cables are you using between amp in put and switcher? Just plugged in some cheapy guitar cables for time being, but introducing lot of noise.

Looking for better option (I know, including making my own).

 

[ZEN Amps]

I just completed a fairly large system, 16 amps x 8 cabs. I put aside 2 days to do it and was well worth it, pre-made cables just aren't an option really.

Cheapy cables could be your problem, but that's only one possibility. There's plenty of potential for ground loop hum and other nasties as I'm sure you're aware.

Good luck!