I bought the new Master Airscrew 3 and 4 blade props for the DJI Avata and here is a quick sound comparison. Thanks!
DJI Avata: https://amzn.to/3lVpgLW
Master Airscrew 4 Blade: https://amzn.to/3nBDthk
Master Airscrew 3 Blade: https://amzn.to/42RmsQz