Shure Aonic 50 Gen 2 is the bigger brother of the Shure Aonic 40 and the successor to the Shure Aonic 50.
The number 50 in the product name means it uses 50mm dynamic drivers, which Shure custom-engineered.
Shure AONIC 40 Wireless Noise Cancelling Headphones is actually the first Shure product that I owned. As the number 40 in the product name suggests, AONIC 40 has a 40 mm dynamic driver which makes it in the same range as the Sony WH-1000XM4 Headphones and Apple AirPod Max.
AONIC 40 is Shure’s mid-range wireless noise-cancelling headphones. They have another higher-end which is the AONIC 50.
