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Multi-Way Conventional loudspeakers with crossovers

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Old 29th June 2010, 12:00 AM   #4391
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Quote:
Originally Posted by gedlee View Post
Another update - I have added the Orion and a two way Behringer to the list of systems.
Just curious, did you measure the Orion yourself, or did someone send you the data? The front on-axis FR looks... pretty bad, I'm not sure how else to describe it. Maybe I'm reading the data wrong. Makes me wonder about the possibility of errors in the construction / wiring, or in the measurements, especially if someone else measured them and sent you the data.
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Old 29th June 2010, 01:50 AM   #4392
gedlee is offline gedlee  United States
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I measured the data myself and was assisted by Dave Clark - who is no amatuer either (just to fend off any suggestions of tampering). He set them up and I measured them. He was present the whole time.

The Orions were direct from Linkwitz and made by his factory. I will swear by the data as being accurate of what we had. I can't speak to what we had as working correctly or not, but it is exactly what someone would get if they bought it from Linkwitz.
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Old 29th June 2010, 02:55 AM   #4393
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Thanks, that answers my question.
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Old 29th June 2010, 03:40 AM   #4394
Pallas is offline Pallas  Pakistan
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Originally Posted by gedlee View Post
I don't remember the model number. How many small powered Behringer two ways are there.
Fair enough. "Powered" and "203x" narrows it down a fair amount. But they do have a lot of stuff.

(I was hoping your comments would be about their passive ones. ~$180 each for an 8" 2-way. Might make useful surrounds regardless.

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It's beyond me how someone can not be able to run IE, simply because its MS. Seems to me like only Apple would be arrogant enough to exclude everything MS. Like Itunes and WMA. I find it simply ridiculous.
I'm sure if MS would want to make OSX compatible versions of .net and IE, nobody at Apple would complain. But there isn't one, so we can't run it.
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Old 29th June 2010, 04:20 AM   #4395
gedlee is offline gedlee  United States
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I'm sure if MS would want to make OSX compatible versions of .net and IE, nobody at Apple would complain. But there isn't one, so we can't run it.
You are kidding of course!! It's Apple that is so restrictive on who "gets" to use "their" platforms, not the other way arround. You are aware that Apple is being investigated by the FTC for "unfair trade practices" regarding restricting "fair competition" - in two seperate cases!
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Old 29th June 2010, 04:48 AM   #4396
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May we have your thumbnail analysis of this result please, Earl?
Attached Images
File Type: jpg SW95 HPM625.jpg (80.4 KB, 434 views)
File Type: jpg SW95 HPMN625.jpg (81.4 KB, 420 views)
File Type: jpg SW95 HPMN610.jpg (79.2 KB, 422 views)

Last edited by ZilchLab; 29th June 2010 at 04:53 AM.
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Old 29th June 2010, 05:02 AM   #4397
poptart is offline poptart  Canada
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Quote:
Originally Posted by gedlee View Post
You are kidding of course!! It's Apple that is so restrictive on who "gets" to use "their" platforms, not the other way arround. You are aware that Apple is being investigated by the FTC for "unfair trade practices" regarding restricting "fair competition" - in two seperate cases!
No you're wrong here. Apple's iTunes/iPhone ecosystem is without a doubt restrictive and wrong, but that's not the reason there never was .Net on mac or why there's is no longer IE on mac os. That's 100% a microsoft decision. There's no .Net for linux or any other operating system either, is the evil steve responsible for all that too?

Last edited by poptart; 29th June 2010 at 05:05 AM.
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Old 29th June 2010, 06:42 PM   #4398
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Earl,

Your plots are very nice but I think the contour maps would be more enlightening if the data were normalized by the on axis response. For example, what ever the problem is with the Orion on axis response, it would be taken out of the picture so that only the effect of directivity (as shown in the polar plots) is present on the maps.

FWIW, I measured a pair of Orions a few years back. The response of the Orion on axis was nothing like you present. The behavior at 2k was much smoother and there was no drop in the tweeter response at higher frequency. Assuming your measurements are correct (I have no reason to believe otherwise) there has to be something wrong with the system you measured.
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Old 29th June 2010, 07:50 PM   #4399
gedlee is offline gedlee  United States
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I strongly disagree with axial normalization because of what that does to off axis results in the case of an axial hole. No, showing the data "as it is" is what's important.

I would talk with Mr. Linkwitz about why he is shipping defective products if you don't like what you see. That's the way they were sent.

But I will say this - there ius a small possibility that the HF response droop could be the mic calibration, but I would doubt that since I don;t see a droop on my speakers. But then maybe mine have a rise ... Possible, but not likely.

The 2 kHz response is real, I'll post the raw data if you want to see it.

Last edited by gedlee; 29th June 2010 at 07:53 PM.
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Old 29th June 2010, 07:57 PM   #4400
gedlee is offline gedlee  United States
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You know, I looked again at the raw data and while there is a dip at 2 Khz, it does not come out as pronounced as on the polar maps. So ignore the Orion for now, until I can sort out what happened.
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