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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: Curious about what speaker characteristics posted by Ivan303 on November 23, 2020 at 13:20:59:
In this case, I'm just talking about bass. The low damping factor raises the effective Q of the driver, while a bigger magnet decreases it. So you can make the same alignment in the same box with the same cone, while the larger magnet increases the efficiency.
As I understand it, in the early post-WWII days many speakers were maximum efficiency designs with huge magnets and a low Q. This made them suitable for bass horns, but as direct radiators their Q was too low to get deep bass. A solution was unity damping (output impedance of the amp was equal to the driver's DCR), and there were several amplifiers that used a mix of positive and negative feedback to create unity damping, usually with a switch to choose between high damping and unity damping.
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Follow Ups
- RE: Curious about what speaker characteristics - Paul Joppa 20:24:33 11/23/20 (1)
- RE: Curious about what speaker characteristics - 91derlust 21:27:32 11/23/20 (0)
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