Critical oppositions made using inadequate equipment.

Sorry, auto spelling error appeared in the thread title. It’s Opinions instead Oppositos :) 

NO upgrade everything ASAP!!

Sure its possible, but your conclusion would leave you with more questions than answers.

Oppositions aside, most wouldn't know the difference. 

Yes it's possible but only up to a point which is a good thing. If you have a good source your system will continue to improve and reveal more as you build around it.  The same holds true if it's a crappy source and great speakers or whatever component mix.