Cambridge Audio DacMagic Plus Power Supply Question

Linear Power Supplies will make a difference. You do get what you pay for, as you move up in quality (and cost).

I recommend spending a bit more to cover yourself vis a vis quality as well as flexibility to use with multiple voltage and amperage.

Here is a good introduction and primer ’article’ from Jay Luong / Audio Bacon:

https://audiobacon.net/2018/06/29/linear-power-supplies-for-audiophiles-getting-closer-to-live/

I use Uptone Audio and HDPLEX LPSs.

Great article @david_ten . Thanks, I'm going to bookmark it.
The SQ of any component will be improved by replacing the wall-wart with a LPS.

I've been researching LPS's here on the forum and the Uptone Audio gets very high marks, too bad the price went up...
https://uptoneaudio.com/products/ultracap-lps-1-2
Also, the Uptone only has a 1.1A output, so it's for small devices.

Teddy Pardo is another highly ranked LPS (using a toroidal transformer)
https://www.teddypardo.com/powersupplies.html

This LPS was recommended to me recently. Looks to be very high quality...
http://keces-audio-usa.com/products

Swagman Labs has been getting some good buzz; perhaps the best of the Chinese sourced power supplies...
http://www.swagmanlab.com/Linear-Power-Supplies

Teradak is the popular choice for a budget LPS. Built in China using quality parts, the reviews on the build quality is mixed; but for the money it might be worth trying. Available on Ebay...
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=teradak+power+supply&_...

And the highly regarded SBooster...
https://www.sbooster.com/

@lowrider57  You are welcome. Nice to know that it's of use to you. Hopefully Jay will add additional supplies to his list, especially if he conducts a comparative evaluation.

There are quite a few options and hopefully the OP will find one that works well.

Lots of options depending on the budget, just make sure its 12V @ 2A with a compatible size plug.