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Multi-Way Conventional loudspeakers with crossovers

Modular active 3 way - work in progress
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Old 26th March 2020, 04:40 AM   #201
fluid is offline fluid  Australia
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There is a lot of information here from Gaga and others, chrome can translate it as you go and it is still understandable for those that don't read german

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Old 26th March 2020, 05:41 PM   #202
DonVK is offline DonVK  Canada
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The sides were scalloped out, to reduce the baffle width. Its helps, but the wavefront starts to deform at 3Khz and there is some scattering by 4.5Khz. It think it could benefit from more rounding at the corners and a longer (Z>14cm) scallop. This was a simple cylindrical cut through the edges with some roundover. It's better than a flat baffle <2Khz but choppier above 2Khz.

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File Type: jpg 3d_perspective.jpg (68.7 KB, 88 views)
File Type: jpg HpolarContour.jpg (25.1 KB, 87 views)
File Type: jpg Hpolar@3m.jpg (38.8 KB, 87 views)
File Type: jpg HField@750Hz.jpg (26.3 KB, 87 views)
File Type: jpg HField@1K2Hz.jpg (27.3 KB, 87 views)
File Type: jpg HField@3KHz.jpg (27.6 KB, 4 views)
File Type: jpg HField@4K5Hz.jpg (27.5 KB, 7 views)

Last edited by DonVK; 26th March 2020 at 05:51 PM.
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Old 26th March 2020, 10:48 PM   #203
fluid is offline fluid  Australia
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In my mind I was thinking that you might use the scallop across all three drivers centered on the mid by taking out some of the baffle near the tweeter and woofer. I realise that this is a much longer sim but I think the result would be better.
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Old 27th March 2020, 01:27 AM   #204
DonVK is offline DonVK  Canada
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A longer scallop would provide a smoother transition but would also interfere with a desire to make the speaker modular so I can swap parts. The scallop is not required for the woofers or other potential midrange solutions (cones or horns). So its preferred to have a localized solution.

The midrange sims were used to see how much dome related variation was inherent in the cabinet and whether it could be further reduced.
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Last edited by DonVK; 27th March 2020 at 01:30 AM.
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