Tweeter problems

porfi4ever · 8th October 2005, 12:36 AM

Hi guys, How do you if a tweeter is bad?

David Gatti · 8th October 2005, 01:01 AM

Define "bad".

wintermute · 8th October 2005, 07:11 AM

In my case they usually emitted a bad smell and stopped making any noise

but I guess if it sounds bad then it probably is (at least in that particular application)... let your ears be the judge..... if it is distorting badly then you have to determine if it is because it is damaged, or because it is not being crossed over appropriately.... if it is damaged I'd say it will sound just awfull and probably crackly but if its the crossover then it might just sound a bit edgy or harsh.... (note that this could also be caused by breakups on your midbass in the region the tweeter is covering (if you have large peaks and a low order slope without any form of compensation or notch).....

finaly don't rule out your amplifier (or amplifier/speaker combination) as the source of the problem!

But as David said define bad, I could have just told you a whole pile of irrelevant information

Tony.

porfi4ever · 8th October 2005, 02:25 PM

Thanks guys for your responses, when I said bad is not sound at all, just wanna be sure the tweeter is bad, not the crossover, because I just connected them and nothing happened. Thanks

wintermute · 8th October 2005, 03:37 PM

In that case if you make sure the amp is turned right down you could connect the tweeter directly without the crossover and only turn the volume up a tiny amount, if it starts to make any noise you know you have a problem with the crossover

Tony.

pinkmouse · 8th October 2005, 03:48 PM

I would do it the other way round. Connect the mid driver to the tweeter output of the crossover. It will sound rubbish, but will at least be a bit safer than connecting the tweeter direct to the amp!

wintermute · 9th October 2005, 01:38 AM

good thinking Al

I guess we are eliminating the crossover as a suspect not the tweeter (and the tweeter by elimination if the mid works) 10 points

Tony.

pinkmouse · 9th October 2005, 11:00 AM

Thinking out of the box is good, but it sometimes mean you miss the obvious answer.

The very easiest way would be to put a meter, (set to resistance), across the tweeter and see if you get continuity!

wintermute · 9th October 2005, 12:13 PM

porfi4ever · 9th October 2005, 05:25 PM

Quote:

Originally posted by pinkmouse
Thinking out of the box is good, but it sometimes mean you miss the obvious answer.

The very easiest way would be to put a meter, (set to resistance), across the tweeter and see if you get continuity!

Yes I did that and no continuity at all, that means they are bad. The tweeter are Scan Speak D2010/8513 , how can I open them and try to fixed ?

8th October 2005, 12:36 AM	#1
porfi4ever diyAudio Member Join Date: Dec 2002 Location: Providence,R.I	Tweeter problems Hi guys, How do you if a tweeter is bad?

8th October 2005, 07:11 AM	#3
wintermute just another diyAudio Moderator Join Date: Aug 2003 Location: Sydney Blog Entries: 22	In my case they usually emitted a bad smell and stopped making any noise but I guess if it sounds bad then it probably is (at least in that particular application)... let your ears be the judge..... if it is distorting badly then you have to determine if it is because it is damaged, or because it is not being crossed over appropriately.... if it is damaged I'd say it will sound just awfull and probably crackly but if its the crossover then it might just sound a bit edgy or harsh.... (note that this could also be caused by breakups on your midbass in the region the tweeter is covering (if you have large peaks and a low order slope without any form of compensation or notch)..... finaly don't rule out your amplifier (or amplifier/speaker combination) as the source of the problem! But as David said define bad, I could have just told you a whole pile of irrelevant information Tony. __________________ Any intelligence I may appear to have is purely artificial! Some of my photos

8th October 2005, 02:25 PM	#4
porfi4ever diyAudio Member Join Date: Dec 2002 Location: Providence,R.I	Tweeter problems Thanks guys for your responses, when I said bad is not sound at all, just wanna be sure the tweeter is bad, not the crossover, because I just connected them and nothing happened. Thanks

8th October 2005, 03:37 PM	#5
wintermute just another diyAudio Moderator Join Date: Aug 2003 Location: Sydney Blog Entries: 22	In that case if you make sure the amp is turned right down you could connect the tweeter directly without the crossover and only turn the volume up a tiny amount, if it starts to make any noise you know you have a problem with the crossover Tony. __________________ Any intelligence I may appear to have is purely artificial! Some of my photos

8th October 2005, 03:48 PM	#6
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	I would do it the other way round. Connect the mid driver to the tweeter output of the crossover. It will sound rubbish, but will at least be a bit safer than connecting the tweeter direct to the amp! __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort


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8th October 2005, 01:01 AM	#2
David Gatti diyAudio Member Join Date: Mar 2004 Location: Melbourne, Australia	Define "bad".

9th October 2005, 01:38 AM	#7
wintermute just another diyAudio Moderator Join Date: Aug 2003 Location: Sydney Blog Entries: 22	good thinking Al I guess we are eliminating the crossover as a suspect not the tweeter (and the tweeter by elimination if the mid works) 10 points Tony. __________________ Any intelligence I may appear to have is purely artificial! Some of my photos

9th October 2005, 11:00 AM	#8
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Thinking out of the box is good, but it sometimes mean you miss the obvious answer. The very easiest way would be to put a meter, (set to resistance), across the tweeter and see if you get continuity! __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

9th October 2005, 12:13 PM	#9
wintermute just another diyAudio Moderator Join Date: Aug 2003 Location: Sydney Blog Entries: 22	__________________ Any intelligence I may appear to have is purely artificial! Some of my photos

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