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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: RE: What advantage a 2.5 way has over 3 way ? posted by genungo on December 12, 2014 at 04:56:07:
Both midbass drivers are driven by the amp, but lowpassed over at different frequencies. The "upper" driver goes all the way up to meet the tweeter, crossing over usually around 2kHz. The "lower" driver is for baffle step compensation, and is rolled out (usually first order) to be down -3dB at the frequency, corresponding to a wavelength equal to 3x baffle width, where the on-axis response in 4-pi space is "up" 3dB due to off-axis energy losses. Below this, both midbass drivers are operating in tandem. This yields an on-axis response that is not weak in the bass when the speaker is operating in free space.
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Follow Ups
- Nothing passive in a true 2.5 way - Brian H P 10:06:34 12/12/14 (0)
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