1pair 40mm Headphone Speaker Driver 32ohm for Bose QC45 QC2 QC15 QC25 QC35 QC3 AE2 OE2, Studio 2 Studio 3, Solo 2 Solo 3, Kraken 7. 1, Akg K55, Marshall Major 2 Headset Replacement Speaker Part

Great upgrade to my smh-10 helmet speakers. Definitely louder and worth the upgrade. coms can now be heard on the freeway

One of the speakers on my bose headphones died and I didn't want to spend the big bucks to buy a new headphone set. Brought this speaker to my electronics repair guy and he replaced it in about 20 minutes with minimal cost. The speakers were really inexpensive and seem to be the same quality as the original.

Had a speaker go out on my son's Audio Technica ATH-S700BT headphones, it made the headphones sound like the balance was way off to one side and no bass whatsoever from that dead speaker.Searched around for a decent replacement 40mm speaker @ 32ohms, which is what the original speaker tested out to be on the meter.Found these and the overall ratings were good, thought I'd take a chance on them.Item arrived right on time and speaker slipped into the housing ever so slightly loose, which is actually a good thing. Bigger would have been impossible to fit in the housing and most likely distort the frame which would have ruined the sound.A little hot glue around the edge of the frame and speaker, soldered in the wires and put it all back together, the sound is a perfect match with the other original speaker! I had already figured I'd have to change both to get the sound balanced, but its exactly the same characteristics as the oem speaker.Just an fyi, if you plan to replace your speakers in an AT headphone like this model, you'll most likely need a security torx or allen driver to remove the 3 screws inside. You can also try some jewelers flat tip screwdrivers,which is what I ended up doing since none of my bits would fit those screws. It wasn't that hard to remove, but be careful not to slip and poke a hole in the speaker when re-installing it.Overall, I'm very happy with how this turned out! These were not cheap headphones, and having to throw out over a hundred bucks worth of headphones is ludicrous! We'll see how much longer these last now that it has a new speaker in it, at least I have one more I can swap out if it goes again!

The right side of my Bose QC15 stopped working. Then, I saw some online posts that the issue is most likely due to a bad driver. Then, I purchased this product. I am not an audio guy so it is very hard to say the difference of the sound quality between the original and this driver.The difficulty of repair was to remove the defect driver from the unit. It was glued strongly. I used a hair dryer to warm up a glue. Also, a set of small flat drivers to put them in the gap between the driver and unit. You should be patient on this process. It is recommended to watch YouTube videos how to remove it. Once you remove it, the installation of the new driver is easy. I used Flex Glue to fix it on the frame.

Good stereo imaging while delivering slightly punchy bass for kick drums. I had installed these as the tenth experimental upgrade-repair for my smaller 30mm speakers in an old set of headphones that I had previously repaired nine times, making this the tenth repair after a solder tab finally popped off of the smaller speakers. My older headphones were an older and now-discontinued Onn set and I had retrofitted them with a Belkin stereo cable from a broken extension cable, added a jack to the frame and added a stereo extension cable. This time I had added a pair of slim spacers made of black Schedule 40 PVC pipe that snugly fit around these 40mm upgrades. After a few nights of waiting for glue to dry and soldering things in place with my favorite silver solder, I had tested them and what I had noticed the most was that I could hear the locations of background characters in some anime and movies much better than I had previously. A much better sound stage than before. I can now hear subtle details of game sound effects that I had not heard previously. The overall bass response and loudness are greater than before. I would consider these mid-grade and would purchase them again as they deliver good sound quality overall.

Don't throw away your headphones, use these speakers to fix them!!!I went on YouTube and learned how to fix them, which was very easy. Didn’t think these inexpensive speakers would do the job, but they sound like new.

Used these on my 3m work times and they are fantastic! I have used them for about 2-3 hours so far

I can’t believe this product has so many good reviews! Poor bass… sounds like a $10 headphones!