I love the mach 1s but the only experience I've had them in is the seminole. They were as good as the average headset in terms of tuning out the noise and I didn't even have the custom made fittings.

Saying that, I'm going to be starting on the Beech 1900 soon. Does anyone know how they would do on the 1900? Anyone with 1900 experience know of a good headset?