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Author Topic: Factory Speaker Specs & Grilles  (Read 23437 times)

Riley Casey

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Re: Factory Speaker Specs & Grilles
« Reply #30 on: December 04, 2015, 12:12:20 PM »

Tim McCulloch

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"If you're passing on your way, from Palm Springs to L.A., Give a wave to good ol' Dave, Say hello to progress and goodbye to the Moonlight Motor Inn." - Steve Spurgin, Moonlight Motor Inn

Chris Hindle

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Re: Factory Speaker Specs & Grilles
« Reply #32 on: December 04, 2015, 12:30:03 PM »

Is that a bug or a feature ? http://i.ebayimg.com/images/i/151608387622-0-1/s-l1000.jpg  ;D
Near as i recall, you stick a 2441 or 2445 on it, as a wedge, you can use it to clear the stage.
Ungodly loud - if you so desire.
Great way to poke a hole in something with a bit of 4K  ;D ;D
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Ya, Whatever. Just throw a '57 on it, and get off my stage.

Jim McKeveny

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Re: Factory Speaker Specs & Grilles
« Reply #33 on: December 04, 2015, 12:43:23 PM »

If you think you're smarter than the manufacturer, you probably aren't.

Agreed.

But the lack of transparency (Ha!) from manufacturers is of concern. A percent here, a percent there, soon we are talking about real sound and money.

As engineering-aware end users in an engineering realm should we not ask these questions?



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Riley Casey

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Re: Factory Speaker Specs & Grilles
« Reply #34 on: December 04, 2015, 12:44:12 PM »

That particular potato masher lens was for a one inch driver ala 2421.  They were popular back in the day for use in wedges next to a 12.  Made it damned hard to have a stable vocal mix when the singer moved the mic even a few inches.  For the yonger set who may be scratching their heads muttering WTF, this is a conical exponential horn with an "acoustic lens".  This predates the entire constant directivity design and the lens was installed at the mouth of the horn to make the pattern wider than the horn would have been capable of delivering otherwise. THis is a constructive ( sort of ) use of the phenomena under discussion in the thread.

Near as i recall, you stick a 2441 or 2445 on it, as a wedge, you can use it to clear the stage.
Ungodly loud - if you so desire.
Great way to poke a hole in something with a bit of 4K  ;D ;D
« Last Edit: December 04, 2015, 12:50:21 PM by Riley Casey »
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Jim McKeveny

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Re: Factory Speaker Specs & Grilles
« Reply #35 on: December 04, 2015, 12:47:09 PM »

Near as i recall, you stick a 2441 or 2445 on it, as a wedge, you can use it to clear the stage.

Near as I recall it was a 1 incher.
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Jim McKeveny

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Re: Factory Speaker Specs & Grilles
« Reply #36 on: December 04, 2015, 12:49:23 PM »

Made it damned hard to have a stable vocal mix when the singer moved the mic even a few inches.

Which supports the perf. metal/wickedly peaky thingy I OP'd.

I am guess that w/o mfr input this thread will dissolve into the anectdotal..
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Andre Vare

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Re: Factory Speaker Specs & Grilles
« Reply #37 on: December 04, 2015, 03:18:43 PM »

I am guess that w/o mfr input this thread will dissolve into the anectdotal..

Have a look at my first post in this thread.  Nothing anecdotal.  Research by then member of Bolt, Beranek and Newmann
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Riley Casey

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Re: Factory Speaker Specs & Grilles
« Reply #38 on: December 04, 2015, 03:34:17 PM »

Not sure the merits and demerits of perforated plate acoustic lenses designed in the 50s for home stereos to over come the short comings of short conical horns and misapplied for stage monitors twenty years later makes the thread about perforated metal speaker grilles without value.

Which supports the perf. metal/wickedly peaky thingy I OP'd.

I am guess that w/o mfr input this thread will dissolve into the anectdotal..

Jay Barracato

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Re: Factory Speaker Specs & Grilles
« Reply #39 on: December 04, 2015, 03:52:10 PM »

As a design factor I would SWAG that the effect differs depending on whether the grill is in the region where the driver does work on the air or when the wave is propagating which would depend on placement of the driver and frequency.

After all sound is a compressional wave not a transverse wave.

Sent from my XT1254 using Tapatalk

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Jay Barracato

ProSoundWeb Community

Re: Factory Speaker Specs & Grilles
« Reply #39 on: December 04, 2015, 03:52:10 PM »


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