Woofer bottoming dangers?

[yepimonfire]

The other day I was listening to some electronic music (EDM) at a pretty loud level using dsu and the speakers had inadvertently been set to full band after a firmware update. A loud bass drop below the tuning of my center channel hit and the woofers bottomed our, giving a loud clacking sound.

The speaker sounds fine and pushing in on the woofers shows no rubbing or anything, but what’s the likelihood that some level of VC former deformation is inevitable from a single bottoming event, even if there’s no audible problems with the speaker?


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[TLS Guy]

The other day I was listening to some electronic music (EDM) at a pretty loud level using dsu and the speakers had inadvertently been set to full band after a firmware update. A loud bass drop below the tuning of my center channel hit and the woofers bottomed our, giving a loud clacking sound.

The speaker sounds fine and pushing in on the woofers shows no rubbing or anything, but what’s the likelihood that some level of VC former deformation is inevitable from a single bottoming event, even if there’s no audible problems with the speaker?


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It quite likely does have a deformity, but it is not rubbing. The only consequence is that it may make you not so lucky the next time.

 

[mtrycrafts]

Now you know what can happen. Knowingly or otherwise.

 

[lovinthehd]

Curious, did the firmware update do anything positive?

 

[agarwalro]

What's dsu? I'd be furious if this wasn't a known/expected change and damaged a speaker.

At the very least you should inform others and create a stink with the manufacturer.

 

[lovinthehd]

DSU Dolby Surround Upmixer .... more a fault of the user in doing the firmware upgrade without resetting the parameters.

 

[WaynePflughaupt]

Thanks for reminding me why I don’t do updates!

Regards,
Wayne A. Pflughaupt

 

[yepimonfire]

Curious, did the firmware update do anything positive?

“Expands playable content of dts x”, whatever that means...


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[yepimonfire]

DSU Dolby Surround Upmixer .... more a fault of the user in doing the firmware upgrade without resetting the parameters.

I should have checked it. My 5 floor speakers, especially the front three, have enough bass extension it’s not immediately apparent if they’re reset to full band with just music.


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