Tweeter question

3-LockBox · 14th June 2007, 09:21 PM

I'm talking about a 1.5" cone tweeter

One of my tweeters, a cone tweeter (old Ratshack make) has had its little dome pushed in by a curious child, but it still seems to work (the cone wasn't effected). How important is the dome (dustcap) on a cone tweeter? I have replacements, so I'm not hurtin, too badly anyway.

planet10 · 15th June 2007, 04:47 AM

Sounds like an opportunity to execute a dustcapectomy and play with phase plugs. I have successfully used foam ear-plugs as phase plugs.

dave

AMV8 · 15th June 2007, 11:21 AM

Hi
Sadly dents do sometimes occur. A dent in the dustcap does not normally seem to affect the sound. However to date I have always managed to pull out the dents with a pin or needle.
Don

Cal Weldon · 15th June 2007, 06:16 PM

1 1/2" cone. Is it a phenolic ring type? Can you show us a pic?

Curmudgeon · 15th June 2007, 08:14 PM

With care, sometimes adhesive tape can pop-out a minor dent.

3-LockBox · 15th June 2007, 09:03 PM

Quote:

Originally posted by Cal Weldon
1 1/2" cone. Is it a phenolic ring type? Can you show us a pic?

Its similar in appearence to the old Pioneer phenolic ring type, but its a ratshack tweeter; what makes it a phenolic ring type?

Cal Weldon · 15th June 2007, 09:34 PM

The phenolic ring is the plastic (usually orange) ring around the tweeter cone. I think it's purpose is to deal with the wavefront as it attempts to exit the tweeter. I guess it's better than the metal frame but others will have to chime in and fill you in.

If you have the RS version, it may not have a very big voice coil and popping the cap might be tough as it is somewhat of a bullet shape rather than a rounded cap. Can you hear the difference between the two tweeters?

14th June 2007, 09:21 PM	#1
3-LockBox diyAudio Member Join Date: May 2006	Tweeter question I'm talking about a 1.5" cone tweeter One of my tweeters, a cone tweeter (old Ratshack make) has had its little dome pushed in by a curious child, but it still seems to work (the cone wasn't effected). How important is the dome (dustcap) on a cone tweeter? I have replacements, so I'm not hurtin, too badly anyway. __________________ (insert clever anecdote here)

15th June 2007, 04:47 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Sounds like an opportunity to execute a dustcapectomy and play with phase plugs. I have successfully used foam ear-plugs as phase plugs. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

15th June 2007, 06:16 PM	#4
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	1 1/2" cone. Is it a phenolic ring type? Can you show us a pic? __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

15th June 2007, 09:34 PM	#7
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	The phenolic ring is the plastic (usually orange) ring around the tweeter cone. I think it's purpose is to deal with the wavefront as it attempts to exit the tweeter. I guess it's better than the metal frame but others will have to chime in and fill you in. If you have the RS version, it may not have a very big voice coil and popping the cap might be tough as it is somewhat of a bullet shape rather than a rounded cap. Can you hear the difference between the two tweeters? __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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15th June 2007, 11:21 AM	#3
AMV8 diyAudio Member Join Date: Jan 2005 Location: near london	Hi Sadly dents do sometimes occur. A dent in the dustcap does not normally seem to affect the sound. However to date I have always managed to pull out the dents with a pin or needle. Don

15th June 2007, 08:14 PM	#5
Curmudgeon diyAudio Member Join Date: Nov 2005	With care, sometimes adhesive tape can pop-out a minor dent.

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