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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: Sealed back mid drivers for Multiple Reentrant Horns posted by Mr_Steady on September 26, 2014 at 08:32:13:
"1)My question is; If you wanted a multiple (driver reentrant horn that could cross over at 350hz with sealed back drivers, so you could get the higher efficiency, how big would the drivers have to be? Just off the top of your head. :)
2)And second, would drivers of that size be possible to implement? Would the horn still use four drivers?"
1) Re-entrant (folded) horns are very difficult to DIY and get decent results above 350 Hz. Implementing multiple drivers makes them even harder to get right. The desired SPL output determines the diaphragm size and count, given a fixed excursion, one larger diaphragm can equal multiple small diaphragms. The drivers typically used in Synergy horns have much more excursion than those used on PA re-entrant horns, but require multiples to get near the efficiency of thread on phenolic PA drivers.
2) Re-entrant horns with 16 drivers "plumbed" to one horn have been used for wartime "communication".
Synergy type horns have been made with good response using drivers from one inch to 15", with as little as two drivers to several dozen.
Art
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Follow Ups
- RE: Sealed back mid drivers for Multiple Reentrant Horns - weltersys 12:32:58 09/28/14 (1)
- RE: Sealed back mid drivers for Multiple Reentrant Horns - Mr_Steady 13:24:29 09/28/14 (0)
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