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Re: Piezo Curves [message #75455 is a reply to message #75454] Wed, 06 February 2013 16:55 Go to previous messageGo to next message
Nihilist is currently offline  Nihilist
Messages: 3
Registered: February 2013
Esquire
Seems as though this company has taken up where CTS left off. Lots of graphs that seem to match original Motorola/CTS specs.

http://www.bestgrouptechnologies.com/piezosource-products.php

I sent them an email to see if they have a US distributor. I'll let you guys know what they say.




....................Blake
Re: Piezo Curves [message #75456 is a reply to message #75455] Wed, 06 February 2013 17:12 Go to previous messageGo to next message
JCDC is currently offline  JCDC
Messages: 43
Registered: August 2010
Baron
Nice Link Blake!

So I think the KSN1165 is close to your KSN1167

1165

index.php?t=getfile&id=1012&private=0
Re: Piezo Curves [message #75457 is a reply to message #33514] Wed, 06 February 2013 17:20 Go to previous messageGo to next message
JCDC is currently offline  JCDC
Messages: 43
Registered: August 2010
Baron
And the "new" KSN1038

index.php?t=getfile&id=1014&private=0
Re: Piezo Curves [message #75458 is a reply to message #33514] Wed, 06 February 2013 17:31 Go to previous messageGo to next message
JCDC is currently offline  JCDC
Messages: 43
Registered: August 2010
Baron
Hey that old dual one I have is pretty good! But would you get ripple as you moved side to side because of the interference of the two units?

index.php?t=getfile&id=1015&private=0
  • Attachment: KSN1177.png
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Re: Piezo Curves [message #75460 is a reply to message #33514] Wed, 06 February 2013 21:05 Go to previous message
Nihilist is currently offline  Nihilist
Messages: 3
Registered: February 2013
Esquire
IDK about the off-axis response. I know a few guys on other forums reported liking the KSN1177.

The KSN1056 and the KSN1038 look very similar, but they are different somehow. If you look through all the drivers on the website, they show a KSN1038, but don't have the specs up for download/viewing.

The KSN1165 looks very similar to the KSN1167 , but the KSN1165 has a larger/thicker piezo drive element. Also the horn throat is deeper and the overall diameter is larger than the KSN1167. KSN1165 is rated to about 3500-3800hz and up , while the KSN1165 is rated from 1800hz and up.

Here's a link about the Piezo drive elements. He makes a mistake and says KSN1038, but he is referring to the KSN1034.

http://www.audioasylum.com/forums/hug/messages/2/29739.html

Also, if you look into it, certain piezo tweeters had larger paper diaphragms too. So between different horn loadings (or none) , different size piezo drive elements , and different size paper diaphragms, you get a pretty big range of tweeters.

Here's another link about piezos http://fullrangedriver.com/forum/viewtopic.php?id=1624


......................Blake
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