Subjectively it is very small difference - if it can be measured I would give it about 1-2% when you change the source. But - I think it is good because you need to check in which area you will get that small change. And also you are getting constant change in sound, even for a small amount. It is not like you upgrade your graphics card which is gonna be slow in couple of years from buying it. This doesn't need to be changed, it can even sound better after some time if you get a better recording.
Subjectively it is very small difference - if it can be measured I would give it about 1-2% when you change the source. But - I think it is good because you need to check in which area you will get that small change. And also you are getting constant change in sound, even for a small amount. It is not like you upgrade your graphics card which is gonna be slow in couple of years from buying it. This doesn't need to be changed, it can even sound better after some time if you get a better recording.