Bose QuietComfort QC1 Retaining Ring for QC15 Cushions
Description
### Description This retaining ring allows Bose's replacement ear cushions for the QC15 model to be used with the original Bose QuietComfort model QC-1 noise cancelling headphones. The ear cushions are, of course, a wear item and on a headset nearly 30 years old are likely to need replacing, but Bose no longer sells the repair kit for that model. The original QC-1 uses double-sided adhesive tape to attach the ear cushions. The replacement kit for the QC-1, when it was available, came with the tape pre-applied to the cushion. Just peel and stick. Bose's newer models, such as the QC15, use small tabs to hold the lip of the ear cushion in place. To extend the life of your O.G. Bose QC-1 headphones, get the replacement ear cushion kit from Bose ("material number 324470-0010", aka "QuietComfort 15 Cushion Kit Pair"), print a couple of these retaining rings out, and use them to provide a mechanical retention to allow the QC15 cushions to be used as replacements for the ear cushions for the QC-1 model. ### Installation Notes There is no need to remove or otherwise adjust the wires for each ear piece. The entire installation can be accomplished without any tools. It will be easier to install each ring on each ear piece if the ear piece is first removed from the headband. The ear piece yokes can be gently spread to pull each pin from the ear piece. It will also be easier to put the new cushion in place if you remove the old adhesive tape and especially any of the old rubber bits from the old cushion. I just carefully pulled the old tape off and scraped as much adhesive as I could with a knife; I don't think using Goo Gone or similar is advisable as it might damage the plastic of the ear piece, but if you decide to try that, at least test the solvent in an inconspicuous place first. With an ear piece off, slide the ring over one end of the ear piece to position it over the outside of the ear piece, and then push it straight over the outside so that the smaller diameter portion of the retaining ring sits flush with the rim of the ear piece, and the larger diameter portion is past the face of the ear piece, where the cushion will go. Holding the retaining ring in place, gently push the edge of the new cushion into the space between the face of the ear piece and the larger diameter flange of the retaining ring. Work around the edge of the cushion until the entire lip of the cushion is under the ring's flange (the flange is just large enough that it should almost completely cover the lip of the cushion). Once you get the whole lip of the cushion under the flange, go around the edge once or twice more to make sure it's fully under the flange. Notes: - The retaining ring is just a hair smaller than the ear piece itself. This provides some tension to hold everything together once assembled, but it does mean you need to hold it flush against the back of the ear piece when putting things together, otherwise it will tend to slip back and the gap where the cushion is supposed to slide into will be a bit too small. - As you gradually work the lip of the cushion under the retaining ring's flange, you'll eventually get to a point where it seems to buckle or bunch up and the last bit will be tricky to get under the flange. Work carefully, pushing from both sides and taking advantage of the flex in the cushion and the retaining ring to get everything together. - I found it useful to have a plastic pry tool (e.g. from an iFixit device repair kit), to help push the lip of the cushion under the flange.
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