Miata Mailing List: September 1998, Message #16

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I think this was posted already.  I'll send it again if anyone missed it.
BTW my speaker did get worse over time,  and it is now disconnected and
awaiting a new speaker.  FWIW



/Lou

> ----------
> From: 	support@bose.com[SMTP:support@bose.com]
> Sent: 	Monday, August 31, 1998 8:53 AM
> To: 	lou.ficarra@mccaw.com
> Subject: 	RE: '99 Miata Bose Question
> 
> Hello Lou,
> 
> As promised I am sending you a paragraph from our OEM Service Engineer
> I hope this answers all your questions, if not please feel free to
> send another message.
> 
> ****************************************************************
> 
> Some customers have recently indicated to us that they are
> experiencing a variety of symptoms similiar to which you describe.
> Mazda has informed us that they are aware of this symptom.
> 
> Let me explain what the potential problem is, why it occurs, and what
> we are doing about it.  Some of the 8" door mounted speakers, when
> half wet (I'll define this in a minute), exhibit what we call a rub.
> In some cases this may sound like a rasby buzz, or in other cases like
> wood file being used.  This happens, as I said when the speaker is
> "half wet". What this means, is when some water has made it's way into
> the door and gotten a portion (but not all) of the speaker parts wet.
> This partially wet state can cause the inner structures of the speaker
> to rub against each other.  Although this is not a good sound, it will
> not damage your speaker, and as soon as the speaker dries out again,
> the problem will go away. This is not a situation that will get worse
> over time.  This symptom will come and go with the speaker's exposure
> to water.  Simply, if you can relate the problem to water exposure,
> and the symptom comes and goes, then your speaker would fit into this
> "Half Wet" category. Bose is working with Mazda to evaluate a fix for
> this problem.
> 
> We should also mention that, over time the door trim pieces can
> loosen, as most automotive trim pieces do. Due to the high acoustic
> energy in the door, if these trim pieces do loosen they are
> susceptible to buzzing.
> 
> So, if your problem is not related to water exposure, and gets worse
> over time, or is a constant state, I would suggest that the problem
> may be related to the door trim.
> 
> *****************************************************************
> 
> Lou, please feel free to forward to all of your followers and again I
> hope this information is helpful to you.  If you should need any
> additional information from please do not hesitate to contact me.
> Thank you for choosing Bose Corporation.
> 
> Patty Bolack
> Consumer Relations Division
> 
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