Minio
Firstly the Teddy XPS added will allow the CDX2 to operate at a much higher level , better than the Naim equivalent to my ears.
Secondly, I have both a Teddy XPS and Naim XPS2 together with a CDX2 here that I very rarely use,so I would be willing to sell one of the power supplies.
Lastly, If you’re interested I’m about 2 hours from Norwich If you wanted to have a listen. Alternatively I can wholeheartedly recommend Buying from Teddy, I bought a power supply from him many years ago, and now have a full Teddy system.