Inibuilds A320 Neo Sound Effects - Engine Spool Up

Hello flightsimmers,

On all the flights I take with the A320 Neo, I notice a significant reduction in the volume of the engines when I accelerate the aircraft (when it passes approximately 50% N1).
I have a good sound system (speakers and Creative card) and the same thing happens when I use a bluetooth headset. Only with this particular aircraft.
It deserves an improved sound package.

Thank you