Maestro faceplate - does it make a difference?

@geoffkait   

No war path. Just pointing out that audio equipment is designed and built to produce high fidelity audio reliably without all manner of tin foil tweaks. No different from anything else that is designed and built for a specific task. If something extremely minor or insignificant is making an audible difference then the design or construction or setup or proper function of the audio devices should definitely be in question.

I am just saying that if you don't question yourself (reliability of memory/hearing and the tests you conducted) and question whether every piece of your kit is performing up to scratch then you could easily overlook something...

@glennewdick      

+1

If you find something that shouldn't make a difference but does make a difference then it is time to either 

1) check and root out a faulty piece of equipment (lose wire, broken down capacitor, ground loop, faulty software/firmware setting or bug etc - there are tons of things that can go wrong.)
2) check yourself into an institution for those who hear strange things in their head.