Quote from: JohnST on November 04, 2019, 22:14:16
There is hardly any sound difference between AirPods and AirPods Pro as they are fitted with identical speakers and electronics.
The only difference is that the Air Pods Pro are close to the ear and therefore have higher sound pressure and less loss. Everything else is psyche.
Fitting vastly alters sound. Two pairs of electronically identical CIEMs with deep fit and shallow fit sound different. Foam tips and silicone tips sound different. Different silicone tips sound different(if you're really insensitive to sound, compare between single flange and triple flange:
https://www.amazon.com/FIXED-Star-Medium-Silicone-Replacement/dp/B01KNZG5DW/ref=sr_1_4?crid=VBBNLPM6MC21&keywords=silicone+tips+earbuds&qid=1572982805&sprefix=silicone+tips+ear%2Caps%2C665&sr=8-4
https://www.amazon.com/BLLQ-Replacement-Silicone-Headphones-Powerbeats/dp/B07KJXXGXL/ref=sr_1_6?crid=VBBNLPM6MC21&keywords=silicone+tips+earbuds&qid=1572982805&sprefix=silicone+tips+ear%2Caps%2C665&sr=8-6
). So even if what you say is true, it's highly likely that they still sound different.