In Reply to: Re: Lots of generalizations here guys posted by DMoore on January 25, 2007 at 14:34:59:
I agree. When you look things up, you'll find very few generalizations are accurate enough to be useful. Take for example, the generalization that horns add some arbitrary impedance, like 2 ohms or 4 ohms. The truth is that horns are resonant devices and are highly reactive, especially basshorns. That means there are peaks in impedance spaced in between with broad regions where no impedance rise is seen. Another example of an inaccurate generalization is the one that says mouth size sets efficiency. If one were to generalize, it would be more accurate to say it sets an efficiency/bandwidth product, like Hoffman's Iron Law. Mouth size, efficiency, bandwidth, pick any two. Even that is an over generalization, and one must consider other factors (like driver, front and rear chamber and especially environment) to understand the horn system.
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Follow Ups
- Re: Lots of generalizations here guys - V 10:15:13 01/26/07 (22)
- Re: Lots of generalizations here guys - DMoore 16:03:52 01/26/07 (19)
- Re: Lots of generalizations here guys - DMoore 13:21:58 01/27/07 (18)
- Basshorn impedance - V 09:03:35 01/29/07 (17)
- Re: Basshorn impedance - GM 21:31:04 01/29/07 (3)
- Re: Basshorn impedance - V 09:32:35 01/30/07 (2)
- Re: Basshorn impedance - GM 23:10:32 01/30/07 (1)
- Re: Basshorn impedance - V 08:12:58 01/31/07 (0)
- Re: Basshorn impedance - DMoore 17:33:22 01/29/07 (12)
- Re: Basshorn impedance - V 09:35:48 01/30/07 (0)
- Re: Basshorn impedance - Bill Fitzmaurice 07:08:24 01/30/07 (10)
- Re: Basshorn impedance - V 09:38:35 01/30/07 (9)
- Re: Basshorn impedance - DMoore 12:09:59 01/30/07 (8)
- Re: Basshorn impedance - V 13:14:51 01/30/07 (7)
- Re: Basshorn impedance - DMoore 18:55:05 01/30/07 (6)
- Re: Basshorn impedance - V 07:53:35 01/31/07 (5)
- Re: Basshorn impedance - DMoore 10:47:12 01/31/07 (4)
- Re: Basshorn impedance - V 11:12:12 01/31/07 (3)
- Re: Basshorn impedance - DMoore 19:53:27 01/31/07 (2)
- not to pick nits - Dominic 21:17:33 02/05/07 (1)
- Re: not to pick nits - Bill Fitzmaurice 06:11:08 02/06/07 (0)
- Re: Lots of generalizations here guys - DMoore 15:49:15 01/26/07 (1)
- Re: Lots of generalizations here guys - DMoore 16:07:36 01/26/07 (0)