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Stax SRX Mk3 imbalance
Stax SRX Mk3 imbalance
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Old 10th June 2021, 04:46 PM   #1
Mixefix is offline Mixefix  Denmark
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Join Date: Jun 2021
Default Stax SRX Mk3 imbalance

I own two pairs of stax SRX mk3 headphones. One of them is in perfect condition with no audible imbalances at all and another one with a noticeable imbalance in the right driver. Ideally i would like both to work perfectly so i can use one of them regularly knowing that if it brakes i have a backup. Ive tried fixing the problem by increasing the volume of the right driver but it is pretty clear that the drivers don't match (the right driver has a clear lack of bass).

I have been researching what can cause imbalance in stax headphones and my conclusion is that it can be caused by many different factors and since i have no experience with repairing headphones i could use some help narowing down what might specifically be the problem in my case.

Also if it has any significance when i first bought the "bad" pair of mk3s the right driver seemed completely faulty with clear permanent distortion in the right driver (it sounded kinda like how cheap toys sound). Then i let it sit for some months and disasembled the right cup to see what it looked like on the inside put it back together and turned it on and it was pretty much working except for the lack of bass in the right driver and some (rare) distortion playing certain sounds.

ps: People say that stax lacks bass i dont think that is true at all
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Old 10th June 2021, 06:09 PM   #2
duncan2 is offline duncan2  United Kingdom
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Join Date: Mar 2013
Location: Scotland.
Sounds like a diaphragm problem-loss of conductivity , recoat the diaphragm with antistatic cleanser , try staticide
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Old 11th June 2021, 03:59 PM   #3
Mixefix is offline Mixefix  Denmark
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Join Date: Jun 2021
That is what i feared. Do you think it is possible to do for someone with no experience? Ive read that it can be quite tricky to do without either damaging the membrane or getting dust on it in the process.
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Old 11th June 2021, 06:35 PM   #4
duncan2 is offline duncan2  United Kingdom
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Join Date: Mar 2013
Location: Scotland.
Yes its easy to damage the membrane but you will only be spraying one side of it and do it on a very clean table/bench top and nothing distracting you .

If you are worried about dust run a hand held vacuum cleaner over the area .

Whatever you do try to keep your fingers away from the diaphragm and take your time.
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Old 11th June 2021, 06:59 PM   #5
Mixefix is offline Mixefix  Denmark
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Join Date: Jun 2021
Alright i might decide to give it a go. If I brake it in the process I'm considering doing a pro conversion on it in the future.

Does it matter which side of the membrane I coat?

Last edited by Mixefix; 11th June 2021 at 07:17 PM.
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Old 11th June 2021, 07:38 PM   #6
duncan2 is offline duncan2  United Kingdom
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Join Date: Mar 2013
Location: Scotland.
Not really but bear in mind complete cleanliness and don't leave fingerprints on the diaphragm , if that doesn't work then replacement is required.
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Old 11th June 2021, 07:59 PM   #7
Mixefix is offline Mixefix  Denmark
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Join Date: Jun 2021
Ok your help definitely motivated me to try it out. I appreciate the help!
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Old 15th June 2021, 11:57 PM   #8
spladski is offline spladski  United Kingdom
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Join Date: May 2012
Before spraying anything, check the connectivity/resistance of the wires as they enter the ear cups. My pair had fatigue failure which caused a level imbalance. Chopping out a few inches and re-soldering still left enough cable for the Y section.

Last edited by spladski; 15th June 2021 at 11:59 PM.
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