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Multi-Way Conventional loudspeakers with crossovers

Ribbon Crossovers: Need help...
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Old 18th September 2018, 12:35 PM   #41
lowmass is offline lowmass  United States
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Yes its actually a good tweeter within its range, and IMO the design of the magnet/pole parts and the diaphragm are actually quite impressive. It may be a cheap looking execution BUT the design details of the parts that matter are unique and well done.

If I still had a pair I would probably try modifying by adding to the horn enough to extend its low end response a bit
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Old 18th September 2018, 04:56 PM   #42
SanJoseMichael is offline SanJoseMichael  United States
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What would you add to the horn? If the horn was slightly larger, would that extend low end? Would it also set the driver farther back in the cabinet potentially causing some sort of time alignment issue?
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Old 18th September 2018, 07:32 PM   #43
lowmass is offline lowmass  United States
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yes I would try making the horn a bit bigger. Idea is to get a more robust output down to maybe 3K hz if possible.

I have done this with a few ribbons and the results have been good. Didnt make tru horns but just larger "wave guides". No formulas or theory. I just set up measurement system and used cardboard cutouts and duct tape till I got a size shape that gave a good result. These gave the boost at lower end without too much loss at higher freq.

the larger deeper "horn" would set the ribbon back farther which will likely bring ribbon closer to the cones voice coil position which is a better time alignment.

The only concern with going a bit lower with that design is the transformer. Its quite small and its core may not be able to handle the power.

Last edited by lowmass; 18th September 2018 at 07:34 PM.
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