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Re: Horns and Room Size [message #17095 is a reply to message #17092] |
Thu, 21 October 2004 06:32 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to previous message](/forum/theme/AudioRoundTable/images/down.png) |
Bill Fitzmaurice
Messages: 335 Registered: May 2009
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Grand Master |
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'A basshorn can be made considerably smaller if used in a constrained environment than it would be if used in freespace'. To expand on Wayne's statement any room will get both boundary loading (if the speaker is placed close to a wall or corner) and cabin gain, which kicks in at 12dB/octave where the longest room dimension is about a half wavelength. A room with the longest dimension at 12 feet will get cabin gain from about 47 Hz, which means that you don't need to build a horn with an Fc of 20 Hz to get response to 20 Hz; 45 Hz or so will do nicely. When you account for cabin gain and boundary effects in the design process you can make basshorns quite small. With the extreme amount of cabin gain available in a car trunk it actually makes it an ideal place for a relatively small basshorn. Going to your question, what traditionally limited the use of horns in small rooms was their physical size, not their sound, but today designers like myself are coming up with horns that take advantage of both boundary and cabin gain to create bass horns small enough for even the smallest rooms, including automobile trunks.
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Horns and Room Size
By: Gerald59 on Wed, 20 October 2004 18:24
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Re: Horns and Room Size
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Re: Horns and Room Size
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Re: Horns and Room Size - m value, mouth size & length
By: tuber on Thu, 21 October 2004 08:20
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M
By: Mike.e on Thu, 21 October 2004 23:01
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I don't use M values in my sub horns,
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Re: I don't use M values in my sub horns,
By: pgolde on Fri, 22 October 2004 10:05
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Re: I don't use M values in my sub horns,
By: tuber on Fri, 22 October 2004 10:39
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Re: I don't use M values in my sub horns,
By: pgolde on Fri, 22 October 2004 11:05
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No magic just different compromises
By: Mike.e on Fri, 22 October 2004 11:47
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Re: I don't use M values in my sub horns,
By: pgolde on Fri, 22 October 2004 13:11
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Re: I don't use M values in my sub horns,
By: Mike.e on Fri, 22 October 2004 15:32
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Re: I don't use M values in my sub horns,
By: pgolde on Fri, 22 October 2004 16:16
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3/4 cams and basshorns
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Re: 3/4 cams and basshorns
By: pgolde on Sat, 23 October 2004 08:34
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Re: 3/4 cams and basshorns
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Re: 3/4 cams and basshorns
By: Mike.e on Sun, 24 October 2004 01:30
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Pay no attention to that man behind the curtain!
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Or the sub behind the fence
By: pgolde on Mon, 01 November 2004 19:02
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Re: Or the sub behind the fence
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Very cool!
By: Mike.e on Sun, 07 November 2004 02:09
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reflex vs. horn
By: pgolde on Sun, 07 November 2004 08:43
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Sure thing
By: Mike.e on Sun, 07 November 2004 16:56
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Re: I don't use M values in my sub horns,
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Pics
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Re: 3/4 cams and basshorns
By: pgolde on Sun, 24 October 2004 20:00
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Re: 3/4 cams and basshorns
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Labs Fired Up , Pics on the way
By: pgolde on Sat, 30 October 2004 15:15
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Re: Labs Fired Up , Pics on the way
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Re: Labs Fired Up , Pics on the way
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Re: Labs Fired Up , Pics on the way
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Re: Labs Fired Up , Pics on the way
By: pgolde on Tue, 02 November 2004 11:45
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Re: I don't use M values in my sub horns,
By: tuber on Fri, 22 October 2004 10:35
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Re: I don't use M values in my sub horns,
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Re: I don't use M values in my sub horns,
By: tuber on Tue, 26 October 2004 09:56
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Re: I don't use M values in my sub horns,
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Re: M
By: tuber on Fri, 22 October 2004 10:32
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Ooops
By: Mike.e on Fri, 22 October 2004 11:43
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Practically
By: Mike.e on Thu, 21 October 2004 05:42
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Re: Practically
By: tuber on Thu, 21 October 2004 08:11
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Re: Practically
By: Mike.e on Thu, 21 October 2004 22:58
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Re: Practically
By: tuber on Fri, 22 October 2004 10:31
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Thank you all for your comments
By: Gerald59 on Sun, 24 October 2004 13:47
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