I tried both the Bose and Lightspeed in our Cessna 195. I like those headsets in the Cessna Cardinal, but they didn't seem to work as well in our radial engine powered airplane.
I shopped at Oshkosh and bought the headset because of the good money back guarantee and the "magic button".
I bought one of the first headsets on Saturday at Oshkosh, and departed Sunday with it on. Unfortunately we got the dud and it only worked when I bent the cable around the handset.
I sent a note on Sunday to Senheiser and they responded within an hour. They replaced the headset with a minimum of fuss, and it was worth the wait.
The magic button they talk about works really well for us. I can hear the radio much more clearly in the 195. It works so well that I can even hear the wind leaking in around my poorly sealed roll up window. We also have tried it in a tiger moth and it works better ithat type of environment than any of the other ANR headsets I've tried. It does sometimes create a buffeting noise if the ear cups are subject to wind at the wrong angle.
The headset isf more or less comfortable but I'm looking forward to the sheepsking head pads.
Kurtis Arnold - Toronto, ON