Digital Linear Power Supply

In order to get my Mac Mini out of the chain, I just bought a Bryston BDP Pi today and my dealer told me about the Bryston linear power supply upgrades. The cost of those upgrade options are more than I’m able to afford. I know about the Uptone Audio LPS 2 though I’m only looking to power the one component. Also a choke filter type linear power supply is enticing but I only have a basic understanding of what that is. Any suggestions along this matter would greatly be appreciated.
Thanks!