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Old 18th January 2013, 10:14 AM   #1
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Default Fullrange horn speaker?!

hi dudes

Radian 950-PB will cover from 500Hz-19Khz in a proper horn. could this horn be used combined with an active sub-woofer covering 20hz-600Hz as a complete speaker?

as subwoofer is active and the gain could be adjustable, the efficiency of the speaker would be pretty high. maybe aboe 110db/1w/1m

any idea?
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Old 18th January 2013, 08:10 PM   #2
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holy moly! nobody to come up with an idea?!
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Old 18th January 2013, 08:27 PM   #3
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Well no subwoofer will go from 20 hz up to 600 hz, by definition it would have to be a woofer.
Planning to amplify each driver separately it is agood idea, but the tone, dinamics a low distortion of a compresion driver like a Radian 950 inside a horn is very different than those of a woofer, sub or not.
Why do you want to use a Horn driver?
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Old 18th January 2013, 09:00 PM   #4
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Quote:
Originally Posted by saturntube View Post
Well no subwoofer will go from 20 hz up to 600 hz, by definition it would have to be a woofer.
Planning to amplify each driver separately it is agood idea, but the tone, dinamics a low distortion of a compresion driver like a Radian 950 inside a horn is very different than those of a woofer, sub or not.
Why do you want to use a Horn driver?
because of high efficiency, bit watt tube amplifiers could be used.
I like the sound of horn speakers
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Old 18th January 2013, 10:25 PM   #5
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You would need an upper bass horn to go from 120-140 hz up to 500-800 hz.
There is no other way, all else is useless.
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Old 18th January 2013, 10:37 PM   #6
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Well OK, of course you could use any of the following:

1- A 15" woofer (Altec 416 - 515 and the likes) in a bass reflex cabinet
2- A 12" woofer, like some pro designs out there... sound horrible.
3- A 10 inch woofer, yes they even try this.
4- A 10 inch midrange and a 15" woofer, the "magic" horn.
5- A 15" woofer inside some kind of horn-bass relfex thing.
6- A 15" woofer inside a folded horn, corner or not.
7- A couple of 12" woofers on a open bafle.
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Old 18th January 2013, 10:52 PM   #7
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I think you are undervaluing what happens below 600Hz. For one thing, it is the bulk of the power spectrum of music, so it's hard to see why high efficiency is important if it's only above that point. For another thing that is sort of the same thing, most of the fundamental notes in music are 40-1000Hz (and 40-600 Hz is about 80% of the notes in that range), so the "sound" of whatever is covering up to 600Hz is going to be a very significant part of how the overall speaker sounds.

As for making it work, there would be a directivity mismatch and you would have some challenges with time alignment, but you could certainly do it if you really wanted.

Last edited by dumptruck; 18th January 2013 at 10:55 PM.
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Old 18th January 2013, 11:43 PM   #8
sreten is offline sreten  United Kingdom
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Hi,

Can be done if you really want, with a class A flea power amplifier
for the horn, which will have serious dispersion issues at the top end,
but you have ask how does it give the sort of sound you want ?

A 2x12" 0.5 way is probably best for the bottom end, not simple.
Sensitivity, size, bass extension all have to be balanced.

rgds, sreten.
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Last edited by sreten; 18th January 2013 at 11:47 PM.
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