Question about Shure E3C Consumer Headphones

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Headphone change ear socket

How to change the ear socket

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Posted on Feb 11, 2008

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1 Answer

Severe squelch in left ear phone


The design of these headphones includes a microphone on the outside and on the inside of each earcup. The outside microphone detects outside noise. The inside microphone monitors what you are hearing and when it detects that the outside noise is present inside, the active noise-canceling circuits remove that noise. This happens fast enough that you perceive a significant reduction in the outside noise getting to your ears.

The airspace inside the earcup is a tuned chamber defined by the shape of the foam in the ear cushion. This is important because with the inside microphone in close proximity, but at a 90-degree angle to the speaker, the circuit must be designed to eliminate the normal feedback that occurs.

If the foam in the ear cushion has weakened/deteriorated to the point that it no longer has it's original shape, (in particular the lower half of the ear cushion), the size and shape of the air chamber inside of the earcup is directing more of the speaker sound toward the microphone than the design can compensate for causing audio feedback to occur. You are hearing that feedback.

On my QC-3 headphones, I can cause the feedback squeal in both earcups, with the left earcup being more sensitive to the shape change than the right.

It is probably time to replace the ear cushions. If so, they are available from Bose for $35/pair.

QuietComfort 3 Acoustic Noise Cancelling Headphones Bose Product Support

They are also available aftermarket at Amazon.com for $16.99/pair
Replacement Earpad ear pad Cushions For Bose QuietComfort 3 QC3 Headphones...

or $5.69/pair.
Bluecell Pair of Replacement Earpad Ear Pad Cushion for Bose Quietcomfort...

Aug 29, 2013 | Bose QuietComfort 3 Acoustic Noise...

Tip

EAR PIECE PADS


HOW DO I CHANGE THE EAR PIECE PADS.

on Jun 01, 2008 | Sennheiser HD 25 Professional Headphones

1 Answer

How to replace ear cushion on bose QC 3 headphone


The ear cushions are held on the earcup with six snap fasteners, three on each side. To remove the ear cushion, simply pull it away from the earcup carefully so that you do not break the plastic snap tabs.

It should not be necessary to pry the ear cushion off with a sharp object, but if you do, be careful. There is also a thin gasket seal between the earcup and the ear cushion, take care not to damage it.

If you need to replace the ear cushions with new ones, they are available from Bose for $35/pair.

QuietComfort 3 Acoustic Noise Cancelling Headphones Bose Product Support

They are also available aftermarket at Amazon.com for $16.99/pair
Replacement Earpad ear pad Cushions For Bose QuietComfort 3 QC3 Headphones...

or $5.69/pair.
Bluecell Pair of Replacement Earpad Ear Pad Cushion for Bose Quietcomfort...

Apr 02, 2013 | Bose QuietComfort 3 Acoustic Noise...

1 Answer

Static in the left ear, feels like a bad connection


Hi.

First test if the problem occurs using different output devices. Also ensure there is no earthing problem with the wall socket. In that case you will get the problem even when playing from speakers.

If the problem depends on the speakers, then it is a bad connection. The headphones are not supposed to be disassembled and must be replaced.

Call Bose to sort out the problem.

Bose Worldwide - Contacts

Mar 20, 2011 | Bose QuietComfort® 15 Acoustic Noise...

1 Answer

When I plug my headphones into my iPod, there is no sound, unless I jiggle the cord around and do not plug them all the way in. They worked fine at the beginning, but do not work now.


I'm not certain it's not the I-Pod socket or the headphone jack that is playing up? If you can get another pair of headphones (a friends etc) and put them in the socket of the I-Pod, to test it that should clear it up. For if they don't work you know it's the I-Pod socket that's faulty.
If it's the Bose jack that's gone, you better see my tip on dodgy cable/plugs on headphones. You should be able to replace it with the 3.5mm type shown, but I think you can get the thinner type jacks.

Jul 09, 2010 | Bose in-ear headphones - Black with...

1 Answer

How to change AAA battery in headphone. Can't see how to open it to get to battery slot.


I looked inside the ear cups and moved the fabric. All the searching finally turned up the battery compartment on the outside of the ear cup with the switch on it. After that, it was easy. I also found out that you could disconnect the cable. That was interesting, too.

Dec 26, 2009 | Bose QuietComfort 2 Consumer Headphones

1 Answer

Right Bose In-ear cord separated from headphone


i know that these are very exspencive headphones, they were 100 dollars, and they are great. unfortunitally, these cannot be fixed without getting new headphones, sorry!!!

Mar 17, 2009 | Bose in-ear headphones - Black with...

1 Answer

Can't get Turtlebeach Ear Force X3 to work with XBOX 360


You should set the Chat Audio to "Play through headphones" and hook the red and white piggyback cables into the X360 red and white RCA out's.

Dec 25, 2008 | Voyetra Turtle Beach Turtle Beach Ear...

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