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Multi-Way Conventional loudspeakers with crossovers

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Old 9th June 2013, 04:57 PM   #41
MartinQ is offline MartinQ  Canada
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Quote:
Originally Posted by dumptruck View Post
You can just use an asymmetrical waveguide. A good econowave style design can do far better than the 10' distance you mentioned.
What this does is exactly what PB mentioned, you push the crossover higher by using a smaller (vertical) waveguide.
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Old 11th June 2013, 09:02 AM   #42
AllenB is offline AllenB  Australia
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Martin, was going to say the same thing in reverse, that narrowing the vertical dispersion would result in a vertical profile of greater length and/or height.

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You can just use an asymmetrical waveguide.
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Old 11th June 2013, 03:41 PM   #43
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Guys, that's what I was talking about in the first place! I guess it wasn't a very clear post. Let me try again:

I'm not sure if you're referring to a particular "econowave" speaker, but a good one should be able to do a bit better than 10', and those asymmetrical CD waveguides are already the compromise you (PB) suggest in your next post, are they not? If you try to go even smaller than that, it gets very difficult to stay 2-way.

better?
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Old 12th June 2013, 10:46 PM   #44
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Originally Posted by Zero D View Post


I know of HF drivers that achieve quite a lot more output. You "may" have already evaluated them ? But if you'ld like me to pass on the info to you, on the off chance the've slipped past you, just holla
More than 110dB with one watt ? Please share the info
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Old 12th June 2013, 11:30 PM   #45
fas42 is offline fas42  Australia
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110dB? Baby food ... . Try a Community PC1542M midrange horn: sensitivity 117dB, 200Hz-2kHz; 147dB peak - full assembly weighs 45Kg
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Old 13th June 2013, 12:02 AM   #46
tinitus is offline tinitus  Europe
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Originally Posted by fas42 View Post
Interesting that people often throw dirt at horns for being 'bright', when all that's really happening is that the distortion artifacts of the preceding chain are being cleanly reproduced. ....
from my experience, mostly related to crossover 'malfunction'
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Old 13th June 2013, 01:36 AM   #47
JLH is online now JLH  United States
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Originally Posted by fas42 View Post
110dB? Baby food ... . Try a Community PC1542M midrange horn: sensitivity 117dB, 200Hz-2kHz; 147dB peak - full assembly weighs 45Kg
The high sensitivity comes from the restricted directivity of the horn. The M4 driver does not do 117db 1W/1M.
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Old 13th June 2013, 02:48 AM   #48
GM is offline GM  United States
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Originally Posted by tinitus View Post
from my experience, mostly related to crossover 'malfunction'
......and/or god awful Ti diaphragm.

GM
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Old 13th June 2013, 03:47 AM   #49
Pano is offline Pano  United States
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Quote:
Originally Posted by JLH View Post
The high sensitivity comes from the restricted directivity of the horn.
Quite right! Most people forget that. If that's were not true, it would be more than 100% efficient.
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Old 13th June 2013, 04:09 AM   #50
fas42 is offline fas42  Australia
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Yes, the M4's output is dependent on the attached horn - some time ago I was interested in what driver had the highest true output, and this chap stood out. It was rated some years ago as the most efficient driver available, I wonder if that is still the case ... ?
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