- Apr 18, 2016
A quick upgrade is to add a staggered series of capacitors to the USB line between the stock power supply and the chromecast: say, 470 mF, 47 mF, 4.7 mF and a smaller good poly cap. Works great, and you can use the same cable on other power supplies.
By the way, it is important to note that the USB cable I got with the last
chromecast audio I bought had ONLY the two power supply wires (and no signal wires). Obviosly you don't want to use that cable for other data operations.
How does this modification improve the sound? What differences are you hearing?
I'm using a better-shielded cable than the stock one but the stock one isn't half bad either.