I have everything that is connected to my system (including a Mac Pro, printer, etc.) going through a Furman PL-8C power conditioner and that is the only thing plugged into the wall outlet I use. I have zero noise or ground loop issues. I'm running two A07s now, one with OPA1656 op amps, the other with OPA2134s. The amps and chips are great. I'm using the 32v 5 amp brick on the other A07 to run some tweeters. I'm running Spektor 2s with Drok PS. Last night I checked for noise at high volume on the whole system and couldn't detect any.
How do you safely connect a drok power supply with an amp? This thing looks dangerous.
How do you avoid ground loop if the source and the amp are both grounded?
Is your 32v 5amp brick this?
This is the power supply that amir said had some mains hum.