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jackfish 2nd March 2009 04:09 PM

Tweeter for Pioneer B20FU20-51FW
I see many posts calling for the Goldwood GT-1005 piezo tweeter from Parts Express for use with the Pioneer B20FU20-51FW. There have also been some cheap piezos available on eBay. While these tweeters are cheap, they are not of the same quality as the original CTS/Motorola KSN-1005. Many people are under the mistaken assumption that the CTS/Motorola KSN-1005 is no longer available. However, the piezos with the original manufacturing specifications are now being made by PiezoSource and have been available for several years.

Godzilla 2nd March 2009 04:58 PM

Thanks for the info! I always wanted the 1177!


freddi 3rd March 2009 10:18 PM

cool - I've got >30 CTS so not hurtin' 1142 can be rough - might be its phase plug - got it good on a 5x15 horn with a trap -- what happened to LeSon piezos?

GM 3rd March 2009 11:59 PM


Originally posted by Godzilla

I always wanted the 1177!

Yikes! That's almost 4x what I paid for the last batch I bought before RS decided to drop them. Fortunately, they don't go bad placed mouth down on the shelf. ;)


jackfish 4th March 2009 12:46 AM

I was lucky to find a dozen original Motorola KSN-1005s for $2 a piece on ebay a couple of years ago.

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