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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: RE: MG-1.7 crossover posted by Peter Gunn on July 24, 2010 at 15:27:38:
For Roger....the 2.7 is not a "filler driver" system similar to the B&O approach. That system design targeted a two-way, second-order generic response, but the two drivers were connected with the same polarity. This would yield a huge dip at the crossover frequency. Enter the "filler driver" which was designed with first-order acoustic slopes at the same cutoff frequencies which, in theory, perfectly filled in the notch. In this way all drivers were connected with the same polarity and the system yielded theoretically perfect phase response. "Transient Perfect" is a label you might see applied.The 2.7 crossover doesn't satisfy any of the requirements for the "filler driver" concept.
The electrical response chart posted by Neolith looks exactly correct. It matches my own perfectly.
Hope that helps.
Cheers,
Dave.
Edits: 07/24/10 07/24/10
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Follow Ups
- RE: MG-1.7 crossover - Davey 19:54:46 07/24/10 (3)
- I think PG's talking about the 1.7 crossover (being 2 1/2-way), Davey? nt - andyr 19:59:17 07/24/10 (2)
- Yes indeed. My mistake. - Davey 20:03:31 07/24/10 (1)
- No probs. :-)) nt - andyr 20:23:25 07/24/10 (0)
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