Shoei XR1100 wind noise.

[Kosmic Kartman]

Very similar except I didn't have to cut up the speaker housing. The speakers I used are from 'On the ear' headphones and are about 35mm diamiter X 15 mm deep as opposed to 'around the ear' (as in your link). I did have to dissmantle them but only to remove the steel head band.



When the power jack is turned at 90 degrees the earphones operate in passive mode. The power for the active noise canceling is supplied when both jack plugs are in a paralel position, however if there is no power the speakers go into a mute mode so I use it as a quiet switch as there is no volume control as such. It usualy gets pluged into my iPhone via coiled extension lead. The batteries connect to the other jack plug via a different lead with the two cell battery pack velcro'd to the helmet.

Can't hear that much difference between between the passive and the actice though. If anything I'd say the actice was better at lower speeds.