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WTB: Single or pair of Mark Audio CHBW-70
WTB: Single or pair of Mark Audio CHBW-70
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Old 14th November 2015, 10:15 PM   #1
SirByrd is offline SirByrd  United States
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Exclamation WTB: Single or pair of Mark Audio CHBW-70

Just completed a project with some CHBW-70s and realized that one of my drivers is making a weird mechanical noise with any kind of excursion. The other one is totally fine. Does anyone have any of these kicking around? Doesn't have to be new if it's in good shape, though would also take a well used pair if they both work so they match.


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Old 7th February 2017, 11:37 AM   #2
jimbro is offline jimbro  United States
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WTB: Single or pair of Mark Audio CHBW-70
Are you still out there SirByrd? Was thinking you may have one screw too tight. This is a common problem with MA drivers. The frame can warp and cause the voice coil to rub if the crews are unevenly or overly tightened.

Last edited by jimbro; 7th February 2017 at 11:40 AM. Reason: spellin
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Old 7th February 2017, 06:23 PM   #3
SirByrd is offline SirByrd  United States
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Quote:
Originally Posted by jimbro View Post
Are you still out there SirByrd? Was thinking you may have one screw too tight. This is a common problem with MA drivers. The frame can warp and cause the voice coil to rub if the crews are unevenly or overly tightened.
I wish that were the case, but these make the weird sounds free air, and also prior to any mounting. I have 2 pair that make the sound. I contacted mark audio and they said it was the arrestor feature, but it kicks in way before xmax and as far as I know these were made prior to that feature being introduced.
Oh well.
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