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Pyramid T-1 info wanted
Pyramid T-1 info wanted
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Old 13th December 2012, 06:01 PM   #1
CarlyBoy is offline CarlyBoy  Canada
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Join Date: Aug 2006
Default Pyramid T-1 info wanted

I'm posting this question on other sites to maximize exposure about a probably little known speaker, the Pyramid T-1 ribbon tweeter. I've got a pair of these (serial nos. 0028 and 0041), but no manual or information of any kind. I'll take any info I can get, but most important would be appropriate amplification and suggested crossover frequency. Thanks for any help.
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Old 13th December 2012, 07:12 PM   #2
soundalot is offline soundalot
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Join Date: Feb 2011
Default t1 ribbon

The best bet would be to contact Dick Sequerra. He made the ribbons. I do not know his contact info but try Googling him.
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Old 14th December 2012, 01:25 AM   #3
CarlyBoy is offline CarlyBoy  Canada
diyAudio Member
Join Date: Aug 2006
I guess I should've mentioned I emailed the "contact" at the Sequerra site. No reply. That would be the one and only avenue I could find for contacting Mr. Sequerra.

Last edited by CarlyBoy; 14th December 2012 at 01:30 AM.
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Old 17th December 2012, 11:18 AM   #4
mullardel34 is offline mullardel34  United States
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Join Date: Mar 2005
Location: Midwestern US
It looks like 1.8KHz is the minimum recommended crossover frequency (according to the product specifications):
Sequerra Online T-1 Mk. IV Ribbon
Mullard EL34
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