experiment with isolation??

There's plenty of power products out there that isolate equipment from other components, digital or otherwise. For digital, you can use something like a JPS Digital AC power cord that helps prevent noise generated from the component from getting back in to the AC to degrade the sound of other components. Couple that with a line conditioner that isolates the outlets and you have a pretty effective solution. I know PS Audio is a popular choice for this. If you call Cable Company they will be able to give you a lot of ideas as to what's available at all price levels. They'll also send it to you so that you can try it in your system first before you make a purchase.

I use a PS Audio P3 ac regenerator with spectacular results. Each outlet of the P3 is isolated from one another. The benefits of providing consistent, clean power cannot be understated.

I've used a few different products. I had good success using an Acoustic Revive RST-38 board under my Ayon CD-5s. The sound become more natural, liquid and lively. I've also used Wally feet (similar to Harmonix tuning feet) which are quite good. When I set up my system soon I will be placing my cd player on a Taoc SCB-RS50G board on factory spikes/cups on top of the top shelf of my Taoc rack. Next year I will probably replace the top shelf of my rack with the heavy Taoc iso board & place my player on a set of 4 Stillpoints Ultra 5's. Stillpoints are really the best iso feet you can buy if you have the money.