I use Bose headsets in my Bonanza, they are fairly comfortable and do a good job of active noise cancelling. The guy who does my annual usually takes all my personal stuff and packs it away in the baggage area, and yes, I know I should have moved it myself but ran short of time.
After the annual one on my headsets would receive but not transmit; and I found a frayed wire, The cord plugs in low on the left sidewall and the cord runs near the fuel selector, so I suspect it may have gotten caught under the selector.
Anyway I phoned Bose and found that I had bought the model X just over 5 years ago and was thus outside the warranty period, but they said send it in. They repaired it at no charge and had it back within a week.
That is good service. If I bought another I would consider Bose, but I don't need the extra Blueberry or whatever that is with the new model, I just want to be able to hear and transmit well.
I use David Clarks in another noisier plane and they are better for passive noise blocking, but I have read not as good for active noise cancelling. I had mine modified by Headsets, Inc. in Amarillo to add active noise cancelling, seems to work fairly well.
D C has long had a good reputation for fine service also. There sets are made very well, and stand up to a lot of use. I have not had to have one repaired in some years.
