The power supply is a big deal. If you can get a linear supply, do so. Regardless, put it on a separate conditioner outside your main power conditioner. The inexpensive Furman or PS Audio strips work really well, with LiFT and SMP, like this one:
https://amzn.to/2XsjjEY
It adds filtering between your Mac and your audio. Another similar but not quite as good alternative is the PS Audio power strip, and they run 2x the price.
Best,
E
https://amzn.to/2XsjjEY
It adds filtering between your Mac and your audio. Another similar but not quite as good alternative is the PS Audio power strip, and they run 2x the price.
Best,
E