Making Square Waves? - Page 2

Tom Danley · 16th January 2006, 02:24 AM

250Hz

Tom Danley · 16th January 2006, 02:25 AM

1KHz

Tom Danley · 16th January 2006, 02:29 AM

2.5KHz

David Gatti · 16th January 2006, 03:56 AM

That's a good result Tom, though that spike on the tailing edge is a little curious.

phase_accurate · 16th January 2006, 08:22 AM

Quote:

That's a good result Tom, though that spike on the tailing edge is a little curious.

This is indeed a good result.
But the peak may very well be the LEADING edge. I.e. it might be the tweeter that is out of phase to the rest (AKA 2nd order LR).

Regards

Charles

phase_accurate · 16th January 2006, 01:24 PM

I find the idea of a phase-accurate P.A. speaker quite cool (and also the way as it is implememted by Tom).
But I think it is not the first attempt at such a P.A speaker. AFAIK the Meyer UPA1 was phase-accurate as well.

Regards

Charles

ravon · 16th January 2006, 01:40 PM

Square wave measurements on Jordan TL. Distance 1 meter, 15 degrees off axis.

1000 Hz

100 Hz

phase_accurate · 16th January 2006, 04:17 PM

This an excellent square-wave response indeed. It will have to struggle hard in a P.A. environment though.

Regards

Charles

ravon · 16th January 2006, 05:45 PM

I couldn't resist posting these ...

... and nobody told me they should be used for PA

David Gatti · 16th January 2006, 05:47 PM

Sure can't beat those Jordans!!!

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16th January 2006, 03:56 AM	#14
David Gatti diyAudio Member Join Date: Mar 2004 Location: Melbourne, Australia	That's a good result Tom, though that spike on the tailing edge is a little curious.

16th January 2006, 01:24 PM	#16
phase_accurate diyAudio Member Join Date: May 2002 Location: Switzerland	I find the idea of a phase-accurate P.A. speaker quite cool (and also the way as it is implememted by Tom). But I think it is not the first attempt at such a P.A speaker. AFAIK the Meyer UPA1 was phase-accurate as well. Regards Charles

16th January 2006, 01:40 PM	#17
ravon diyAudio Member Join Date: Apr 2005 Location: Netherlands	Square wave measurements on Jordan TL. Distance 1 meter, 15 degrees off axis. 1000 Hz 100 Hz

16th January 2006, 04:17 PM	#18
phase_accurate diyAudio Member Join Date: May 2002 Location: Switzerland	This an excellent square-wave response indeed. It will have to struggle hard in a P.A. environment though. Regards Charles

16th January 2006, 05:45 PM	#19
ravon diyAudio Member Join Date: Apr 2005 Location: Netherlands	I couldn't resist posting these ... ... and nobody told me they should be used for PA

16th January 2006, 05:47 PM	#20
David Gatti diyAudio Member Join Date: Mar 2004 Location: Melbourne, Australia	Sure can't beat those Jordans!!!

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