Does look like it, as far as I know the rs3 dosen't have a sound actuator at all? I know on the R/S3 is was very obvious when you switched it off..
I came across this article for the new a45
https://www.caradvice.com.au/778969/mercedes-amg-a45-cla45-exhaust/
“The regulations were getting pretty difficult for the sound to just come from the exhaust system,” Bogenschutz told
CarAdvice.
“So we added the AMG pure performance sound, there we take the real sound from the exhaust system, the pulsation of the real sound and move it inside the car. It works together with the exhaust system.”
Fancy way of saying sound actuator lol..goes on to say that the pops and crackles will have disappeared as well. What the new rs3 with the emissions filter has going for it is that the 5pot still sounds great by itself, obviously lacks the pops/bangs/gurgles of the pfl and early fl models but still. The A45 with none of those crackles will sound average as heck being a 2L 4cyl. The only 4cyl which sounds good imo is the STi and that's partly because of the unique uel headers and boxer rumble. The downfall of ICE cars is beginning