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Old Nov 11, 2008 | 05:24 PM
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Default Bose Speaker Question

My 95's Rt. Rear Bose Speaker sometimes the Bass only is distorted. Doesn't do it all the time.You think it's a Amplifier or the Speaker itself?
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Old Nov 11, 2008 | 05:34 PM
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Sounds like the amp is going out does it pop any?
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Old Nov 12, 2008 | 09:42 AM
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Originally Posted by 95VETTEINMEMPHIS
Sounds like the amp is going out does it pop any?
No Pop at all...Just good days & Bad.
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Old Nov 12, 2008 | 04:57 PM
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I bet its the amp but contact dr. dons he is the only one I let work on my Bose speakers. He replaced all of my amps and WOW what a diff.
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Old Nov 13, 2008 | 12:18 AM
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My 96 is the same exact problem. No popping but half the time I drive the car the right rear speaker gets muffled.
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Old Nov 13, 2008 | 06:37 AM
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Originally Posted by CAJUN C4
My 95's Rt. Rear Bose Speaker sometimes the Bass only is distorted. Doesn't do it all the time.You think it's a Amplifier or the Speaker itself?
If you have some electronics knowledge and want to try to fix the amp yourself you can try replacing C172, 10 µfd,16 volt capacitor. This capacitor affects sound quality and if you take the shot it might fix it. The rest of the capacitors in the unit affects popping a squealing and are de-coupling capacitors. Most people replace all the capacitors but that’s the only one that affects sound quality.

For complete data on these amps check the link.

http://forums.corvetteforum.com/c4-t...-and-more.html
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Old Nov 13, 2008 | 10:01 AM
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Originally Posted by 95VETTEINMEMPHIS
I bet its the amp but contact dr. dons he is the only one I let work on my Bose speakers. He replaced all of my amps and WOW what a diff.
dr.dons ? he have a Web site or something

Thanx
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Old Nov 13, 2008 | 10:18 AM
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Here is another alternative to not doing the work yourself. I use them mainly because I can walk in the door and like to get to know the guys and talk electronics. I got an upgraded CD player from them so I could play my home burnt CDs.

Factory Car stereo
http://www.carstereohelp.com/
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Old Nov 13, 2008 | 02:43 PM
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Originally Posted by pcolt94
Here is another alternative to not doing the work yourself. I use them mainly because I can walk in the door and like to get to know the guys and talk electronics. I got an upgraded CD player from them so I could play my home burnt CDs.

Factory Car stereo
http://www.carstereohelp.com/
The Factory Car Stereo guys are great. They recently did a great job for me on my 1986 OEM Bose rebuild. They were factual, prompt, honest, reliable and affordable when many of the other stereo rebuild folks said they could not rebuild my OEM Bose and just wanted to sell me an expensive aftermarket replacement.
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Old Nov 14, 2008 | 07:54 AM
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While we're on the Bose subject, will changing the cap's cure a low volume problem? My 90 convertible has low volume, lower on some than others.
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Old Nov 14, 2008 | 08:28 AM
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You can also contact Bose, and they will rebuild them for a pretty resonable price. It might be worth looking into.
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Old Nov 14, 2008 | 09:28 PM
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Originally Posted by billvh
While we're on the Bose subject, will changing the cap's cure a low volume problem? My 90 convertible has low volume, lower on some than others.
If your talking about one specific speaker having lower volume than the other(s), then it does sound like the speaker amp. If you have the same or similar amp as in the link and info in the links (in post 6), then there is a strong possibility that the amp might have that C172, 10mmfd capacitor being weak. I can tell you for sure it will cause low volume if the capacitance has changed enough to a real low value below 1.

My point of view is that if you have some electronics talent and understanding, and willing to invest a couple of hours, then I think it worth it to do it your self and save $80+ dollars and take the shot. If your more comfortable taking it out and sending it off having some one else do it, then that direction is for you.
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Old Nov 15, 2008 | 12:15 PM
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Default Bass distortion

I'd first check the speaker cone for free movement. I've been thru this with my '92, re-capped the amps, bought aftermarket amps (DON'T DO THIS!) from Mid-America, and wound up buying used but good pull outs. The re-capped units stopped popping and aquealing, but just never sounded right. Something else wrong, but could not come up with a schematic for the amps I had. Found block diagrams that were sort of close, but still differences. I changed all electrolytic caps while at it, increasing voltage rating in the process.
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