I purchased a Series 1 a number of years ago after I tried them on AA. After the earliners pulled away, Bose sent me a repair kit, free, and within 15 minutes my earphones were almost like new. Unfortunately, I must have left them either on an AA flight or a Starwood property, so I now have a Series 2 and a Series 3. Still like the 1s best, as one can control the volume on these old headphones.
Just used the Series 2s on 4 MD-80 legs along with my a DVD player I purchased after loving it also on AA a number of years ago.
AA, you've helped me keep up with technologies I should have!