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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Re: Lots of generalizations here guys posted by V on January 26, 2007 at 10:15:13:
Horns specifically DO add acoustic impedance to the driver, and that is seen GENERALLY electrically by the driver as an increase in electrical impedance. Remember that a driver is also a microphone and has an influence on the electrical signal, that is, it is not just a one-way ticket, electrically. In most cases, the differences are rather slight. This is seemingly further mythologied in that PWK said in print that the Khorn 4 Ohm driver becomes the equivalent of 16 Ohms when placed in the horn. Was he talking acoustically, maybe, but there is no electrical evidence that an overall Z of 16 Ohms is actually the case. But there is a change of overall Z for the driver when actually in the horn. And that CHANGE would apply across the board to ALL horns...Mouth size determines efficiency? Never heard that one, and it's certainly not true.
Throat size determines efficiency. Now that's certainly true. Check Keele's "Low Frequency Horn Design Using Thiele/Small Driver Parameters", AES preprint 1250, May 1977.
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Follow Ups
- 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)
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