Pyramid T-1 info wanted

CarlyBoy · 13th December 2012, 06:01 PM

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.

soundalot · 13th December 2012, 07:12 PM

The best bet would be to contact Dick Sequerra. He made the ribbons. I do not know his contact info but try Googling him.

CarlyBoy · 01:30 AM

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.

mullardel34 · 17th December 2012, 11:18 AM

It looks like 1.8KHz is the minimum recommended crossover frequency (according to the product specifications):

Sequerra Online T-1 Mk. IV Ribbon

13th December 2012, 06:01 PM	#1
CarlyBoy diyAudio Member Join Date: Aug 2006	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.

13th December 2012, 07:12 PM	#2
soundalot diyAudio Member Join Date: Feb 2011 Blog Entries: 1	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.

14th December 2012, 01:25 AM	#3
CarlyBoy 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.

17th December 2012, 11:18 AM	#4
mullardel34 diyAudio Member 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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