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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: w magnet posted by freddyi on July 17, 2014 at 11:49:31:
Hi Freddyi,
If you offset the driver from the throat, your simulation is exactly what happens. You can boost the lower bass, but then you get a notch in the upper frequencies.
In a way, it is like adding a front cavity, which has similar results.
If the driver is very far forward, the the horn becomes a sort of "box"... an odd shaped box, but it ceases to act as a normal horn.
If the woofer has a rear chamber, then you have an bandpass-ish system.
The Karlson has sort of a weird shaped bandpass front chamber in much the same way.
It is important to note that the shape of an enclosure from a pipe, to a horn, to a box, all affect the output with considerable effect.
In the case of the 70Hz horn, the woofer while appearing to be offset, is really a lumped circuit combing a small front chamber and throat in one "mess".
The 70Hz horn wasmade to find a small horn to go from 90Hz to 1kHz.
It does this despite being folded due to the lower reflector, and careful choice of the bend point. While very interesting, no further work was done.
I have the numerical expansion rate if you would like to see it.
I was surprised how high this horn went, although it is very directional at 1Khz.
One other note about the W.E. driver... it has no spider.
I hope this helps. bill
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Follow Ups
- 70 hz horn - RCA-fan 07/17/1418:18:51 07/17/14 (2)
- RE: 70 hz horn - freddyi 01:00:10 07/18/14 (1)
- reflector 70 hz horn - RCA-fan 12:01:06 07/18/14 (0)
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