Item for sale comes as a pair, set of two calibrated drivers.
Tech Tip 1:
First 10 hours of burn-in period is critical with low volume levels for long driver life.
Tech Tip 2:
To put the drivers in ear cups like factory installation, only use 3M™ Yellow Super Weatherstrip and Gasket Adhesive (available in auto stores mostly). Air leakage will cause weak base and distortion at high volumes.
The Verdict
Most Bose headphone drivers go bad prematurely in a matter of months due to high volume listening in the first hours. A common cause for one side quit working; damaged coil in the driver.
For sale is a pair of genuine 40mm drivers used in most Bose consumer headphones models listed below.
These are OEM Bose drivers, come as a matching, balanced pair.
(Same 40mm size drivers are also used in most high end headphones manufactured by other brands like Beats, JBL, Onkyo, Sony and so forth)
QC2
QC15
QC25
QC35
AE2
OE2
Studio
These replacement speakers are not made or sold by Bose Corporation nor do they bear any trademarks owned by Bose Corp. Bose™, Triport ™, QuietComfort™, and QC™ which are trademarks of Bose Corporation in USA and other countries.