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Multi-Way Conventional loudspeakers with crossovers

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Old 20th May 2008, 06:29 PM   #1
gedlee is offline gedlee  United States
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Default Horn vs. Waveguide

Per an agreement that I made from another thread, I received, measured, and evaluated a very inexpensive JBL horn coupled to an inexpensive Selenium driver. I'm not going to look up the model numbers someone else can post those.

I have posted my results at http://140.174.80.168/Papers.htm because they are too big to attach here directly.

As I said before, this is not a waveguide, it is a diffraction horn. It acts just like every other diffraction horn that I have measured and nothing about the measurements that I got surprised me.

Please DON'T ask me how it sounded since I never listened to music through it. From the noise signal I could tell that it was very resonant and the data shows that quite clearly.

These parts may be a very good deal for the money, but they are certainly not of the caliber of devices that I would choose to use in any of my systems.

Sorry if this disappoints anyone out there. I took the time to look at it, but I'm not about to tell you that it good quality. The results speak for themselves.
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Old 20th May 2008, 07:04 PM   #2
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Thank you for your speedy measurement and posting of the results, Earl.

Were these done in your standard 7.5° increments, i.e., the blue lines are 30°, comprising a total 60° beamwidth?
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Old 20th May 2008, 07:05 PM   #3
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Thanks for taking the time to measure it.

Rob
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Old 20th May 2008, 07:18 PM   #4
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I love horns.... you can say what you want at the end of the day, they sound great and if people like what they are getting from them, that is their prerogative.

I think you do yourself a disservice. The most likely customers for your product are those who enjoy horns. By slamming their taste, you don’t do yourself any favor. I know you pride yourself on science and objectivity but there is also something called tact. The guys who sent you that horn loved it. Are they delusional or mislead? I don’t think so…. they liked it for a reason. Maybe if you would drop your dogma for a minute and consider what it is they like, rather than what the SHOULD like, you might get a little more acceptance of your product.
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Old 20th May 2008, 07:24 PM   #5
gedlee is offline gedlee  United States
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Quote:
Originally posted by Kevin Haskins
I love horns.... you can say what you want at the end of the day, they sound great and if people like what they are getting from them, that is their prerogative.

I think you do yourself a disservice. The most likely customers for your product are those who enjoy horns. By slamming their taste, you don’t do yourself any favor. I know you pride yourself on science and objectivity but there is also something called tact. The guys who sent you that horn loved it. Are they delusional or mislead? I don’t think so…. they liked it for a reason. Maybe if you would drop your dogma for a minute and consider what it is they like, rather than what the SHOULD like, you might get a little more acceptance of your product.
I already appologized for hurting your feelings so there is no need for this kind of comment.

I suppose you were looking fora confirmation of your opinions and anything less was going to ruffle your feathers.

And yes, I love Waveguides too. I wouldn't use anything else. I just wouldn't use that one.
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Old 20th May 2008, 07:26 PM   #6
gedlee is offline gedlee  United States
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Quote:
Originally posted by ZilchLab
Thank you for your speedy measurement and posting of the results, Earl.

Were these done in your standard 7.5° increments, i.e., the blue lines are 30°, comprising a total 60° beamwidth?

Each line is 7.5°. Yes, the lighter blue line would be 30°.
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Old 20th May 2008, 07:32 PM   #7
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Quote:
Originally posted by Kevin Haskins
I love horns.... you can say what you want at the end of the day, they sound great and if people like what they are getting from them, that is their prerogative.

I think you do yourself a disservice. The most likely customers for your product are those who enjoy horns. By slamming their taste, you don’t do yourself any favor. I know you pride yourself on science and objectivity but there is also something called tact. The guys who sent you that horn loved it. Are they delusional or mislead? I don’t think so…. they liked it for a reason. Maybe if you would drop your dogma for a minute and consider what it is they like, rather than what the SHOULD like, you might get a little more acceptance of your product.
I, for one, am in no way hurt or offended, Kevin. They are what they are, and there is value in knowing what that is.

The results speak for themselves. Everything in context....
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Old 20th May 2008, 07:37 PM   #8
tinitus is offline tinitus  Europe
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I think Earl was asked several times to do these measurement
It is not his fault the measuements doesnt support your listening experience

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Old 20th May 2008, 07:38 PM   #9
gedlee is offline gedlee  United States
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Quote:
Originally posted by ZilchLab


I, for one, am in no way hurt or offended, Kevin. They are what they are, and there is value in knowing what that is.

The results speak for themselves. Everything in context....

An absolutely correct position. No one ever gets to truth by taking a position. We would still be in the dark ages if we only accepted data because we liked it.
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Old 20th May 2008, 07:39 PM   #10
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Quote:
Originally posted by gedlee


I already appologized for hurting your feelings so there is no need for this kind of comment.

I suppose you were looking fora confirmation of your opinions and anything less was going to ruffle your feathers.

And yes, I love Waveguides too. I wouldn't use anything else. I just wouldn't use that one.
Actually, I wasn't the one who sent you the horn in question nor have I ever used it.

You have ruffled my feathers though. You should use some tact in how you treat people.
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