Hole in Dust Cap Affect Sound Quality ??

excetara2 · 30th August 2009, 04:21 PM

Got a hole in my dust cap that is probably about 1/16" inch. The dust cap is really hard plastic. I was thinking about putting an extremely thin layer of glue over the small hole. I don't know if this is necessary.

Is the sound quality affected by the hole usually? Would it be better to try to cover it up?

brianco · 30th August 2009, 10:17 PM

http://www.lampizator.eu/SPEAKERS/PR...c_lansing.html

HAve a look at the section on the midrange.

excetara2 · 30th August 2009, 10:44 PM

Are you saying the dust cap extends the midrange. The speakers are cut off at 4K so shouldn't be an issue. Correct?

nigelwright7557 · 30th August 2009, 10:46 PM

I would seal it somehow.

The dust cap stops dust getting between the voice coil and the magnet.
The dust would cause friction and affect the sound.

planet10 · 31st August 2009, 12:23 AM

Yes, sound quality is affected... often for the better -- sometimes not, but you might need to make it bigger (and do the other driver).

What kind of driver?

dave

excetara2 · 1st September 2009, 12:37 AM

The driver is a VIFA D6.8 in a ported 2-way bookshelf system.

I was planning on placing a tiny patch of rubber cement over the hole. Do you recommend leaving it?

CLS · 1st September 2009, 01:20 AM

I'd suggest just leave it. Or, enlarge it!

-- a center hole on the dust cap might look like the lengendary Altec 515

Glowbug · 1st September 2009, 01:27 AM

Excuse to remove both and phase plug 'em?

planet10 · 1st September 2009, 02:02 AM

Quote:

Originally Posted by excetara2

The driver is a VIFA D6.8 in a ported 2-way bookshelf system.

D6.8 sounds more like a HiVi part number...

dave

excetara2 · 1st September 2009, 02:25 AM

You are right. The tweeter is a Vifa. The woofer is a hi-vi D6.8.

I guess I'll leave it if that is the rec.

30th August 2009, 04:21 PM	#1
excetara2 diyAudio Member Join Date: Jun 2006	Hole in Dust Cap Affect Sound Quality ?? Got a hole in my dust cap that is probably about 1/16" inch. The dust cap is really hard plastic. I was thinking about putting an extremely thin layer of glue over the small hole. I don't know if this is necessary. Is the sound quality affected by the hole usually? Would it be better to try to cover it up?

30th August 2009, 10:46 PM	#4
nigelwright7557 diyAudio Member Join Date: Apr 2008 Location: Carlisle, England	I would seal it somehow. The dust cap stops dust getting between the voice coil and the magnet. The dust would cause friction and affect the sound. __________________ http://www.murtonpikesystems.co.uk PCBCAD40 pcb design software.

31st August 2009, 12:23 AM	#5
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Yes, sound quality is affected... often for the better -- sometimes not, but you might need to make it bigger (and do the other driver). What kind of driver? dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

1st September 2009, 01:27 AM	#8
Glowbug diyAudio Member Join Date: Feb 2006 Location: Hillsborough, NC/McLean, VA	Excuse to remove both and phase plug 'em? __________________ Jim J.

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30th August 2009, 10:17 PM	#2
brianco diyAudio Member Join Date: Aug 2005 Location: Scottish Borders - Kelso; on the famous Tweed River!	http://www.lampizator.eu/SPEAKERS/PR...c_lansing.html HAve a look at the section on the midrange.

30th August 2009, 10:44 PM	#3
excetara2 diyAudio Member Join Date: Jun 2006	Are you saying the dust cap extends the midrange. The speakers are cut off at 4K so shouldn't be an issue. Correct?

1st September 2009, 12:37 AM	#6
excetara2 diyAudio Member Join Date: Jun 2006	The driver is a VIFA D6.8 in a ported 2-way bookshelf system. I was planning on placing a tiny patch of rubber cement over the hole. Do you recommend leaving it?

1st September 2009, 01:20 AM	#7
CLS diyAudio Member Join Date: Jun 2005 Location: Taiwan	I'd suggest just leave it. Or, enlarge it! -- a center hole on the dust cap might look like the lengendary Altec 515

1st September 2009, 02:25 AM	#10
excetara2 diyAudio Member Join Date: Jun 2006	You are right. The tweeter is a Vifa. The woofer is a hi-vi D6.8. I guess I'll leave it if that is the rec.

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