|   Testing for blown drivers | franciswong
Jul 24, 2002 4:30 PM | | Hey there
I recently posted about my B&W CC6 which I bought second hand. Both drivers make a scraping noise if I push them in unevenly, but if I push them in evenly the scraping noise dissapears. Sonically they sound alright, but I've never had a centre speaker before.
I was wondering if there were any ways of testing the speakers to check for blown drivers? Any sounds I should listen out for?
Thanks for your help,
Regards,
Francis |
| Stop pushing on them! | A
Jul 24, 2002 5:14 PM | | When you push on a speaker unevenly and get a scraping noise, it is probably caused by you pushing the voice coil assembly against the pole piece. See:
http://www.hernonmfg.com/speakerass.htm
<img src="http://www.hernonmfg.com/Resources/speakerass/spkr.jpg">
(The voice coil fits around the pole piece.)
And:
http://www.howstuffworks.com/speaker2.htm
Stop pushing on it, or you may damage it.
You state:
] Sonically they sound alright...
If that is the case, then they are fine. |
| Stop pushing on them! | franciswong
Jul 25, 2002 2:45 AM | | Thanks for that, in that case I'm pretty please with my buy. I guess since they're smaller drivers it's a lot easier to scrape against the pole piece.
Cheers,
Francis |
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