Local, I would ask if you can bring your 5, and compare it to his 6. He might be interested to hear the difference. He could add that to his description if you don’t take it home.
My friend upgraded, used AR___ to used AR___
I heard the improvement, but we both thought there was something wrong with his existing, have you ever had a check up?
Also, the new to him had a much more incremental volume control, that feature alone was enough, but it did sound better also.

