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B&W 804S internal vibration

post #1 of 8
Thread Starter 
I am a new owner of a pair of B&W 804S speakers. During instances of deep bass, I can detect the sound of something vibrating from within the cabinet of one of the speakers. As best I can discern, it is originating near the upper bass woofer in the middle of the speaker. This is my first pair of Bowers & Wilkins and I love them dearly. I do not want to risk damaging them by either continuing to play music or by removing the woofer and attempting to diagnose the issue myself.

How should I approach this issue? Shall I get an allen wrench and remove the woofer to see if I can figure out what is happening inside, or shall I seek more professional assistance?
post #2 of 8
Quote:
Originally Posted by HydroWizard View Post

I am a new owner of a pair of B&W 804S speakers. During instances of deep bass, I can detect the sound of something vibrating from within the cabinet of one of the speakers. As best I can discern, it is originating near the upper bass woofer in the middle of the speaker. This is my first pair of Bowers & Wilkins and I love them dearly. I do not want to risk damaging them by either continuing to play music or by removing the woofer and attempting to diagnose the issue myself.

How should I approach this issue? Shall I get an allen wrench and remove the woofer to see if I can figure out what is happening inside, or shall I seek more professional assistance?

The surest thing would be to seek assistance from the dealer. It could be the crossover or terminal plate, or even a wire too near something.
post #3 of 8
Thread Starter 
Thank you for replying so promptly, Jerry. I purchased these speakers from a friend rather than "new" from a dealer. There are two authorized dealers in my city, however. Think they will be willing to help? Sorry to ask such simple questions. I'm still getting up to speed in the high-end A/V community.
post #4 of 8
Ahh, when you said "new" I assumed.

Assuming the local dealer does at least basic repair work (an dO belive most that would sell 800-series do), they should be willing to help but, unless you are an established customer (or the speakers are under warranty), or the speakers were naught from them (even if not by you) I would expect that they would charge something for their time.

Although this is a likely easy fix, there certainly are thing that could go wrong if you attempt to fix it yourself. If you are confident in you ability to undo what you do, you can pull out the driver and hunt for the rattle. I think rhoug, you might want a more experienced hand.

As a note. For a rattle issue, someone fixing need not know b&w specifially. Anyone familiar with basic repair on speakers should work.
post #5 of 8
Thread Starter 
+500 points to you for the thoughtful response, Jerry. You are awesome. Thank you for taking the time and effort to reply. It is helpful. I will consult someone with more experience.
post #6 of 8
Thread Starter 
Mystery solved. A small white plastic bracket that is used to fasten the circuit board to the internal bracing had jarred loose during transportation. It had fallen from its original location and become stuck in the glue on the rear of the bass woofer cone. I gently removed the plastic bit, and reinstalled the speaker. No more rattle/vibration. Sounds so good now.
post #7 of 8
Sweet, I'm also a 804S owner. Have any pics to share of your setup?
post #8 of 8
Thread Starter 
Since I recently relocated, my setup is still rather temporary and basic. Of course the hi-fi was one of the first things I connected when we moved. I snap some photos once I get rid some these cardboard boxes.
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