External Power Supply For My Audiolab 6000CDT CD Transport

I had/have a 6000 for some 3 years. I replaced it a couple weeks ago with a Shanling ET3. I can't imagine an upgraded PS would come near how much better the ET3 is (MSRP $729)

HTH

6000CDT has linear power supply. See picture below.
What external power supply would you use and how would you implement it?

OP asked, "How do bigger external power supplies improve source components?"

By reducing "noise" . Lowering the noise floor makes for a darker background allowing things to sound clearer.  External power supplies are always linear and will transform AC to the needed DC voltage for the component.  Lower level components (like your Node) will use an internal Switch Mode Power supply which are inexpensive but inherently noisy.  Better components will go the more costly route and have an internal Liner Power Supply that reduces the noise floor.  The best flagship components will separate the LPS into another chassis to get the noise floor as low as possible.  This is why you see many flagship components in the multi box configuration.  They have separated their LPS section.