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Multi-Way Conventional loudspeakers with crossovers

Hivi domes
Hivi domes
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Old 14th September 2018, 02:12 PM   #21
adason is offline adason  United States
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thanks ernperkins, I will have a look

I do want to see what other people did with hivi domes for inspiration
otherwise I measure, I listen, I modify, and listen and measure again, and again, till I am happy
Goal is as simple as crossover as possible, as flat fr response as possible, as well as phase response...I found it important too
As I posted as the beginning of this thread, hivi mid dome and tweeter dome measure surprisingly well with just cap on each, so I am surprised to see such complicated crossovers in place
not sure why is that needed

anyway, I measured 5.5" peerless dome I selected, I did select it based on required range and that its dome too, and it measured quite well. My measurements are close to the published, its useful for 50hz to ~2khz, it has one break up at 3kz, no too severe, but something I need to suppress, so I am thinking of 2nd order at 1 kz, then I will measure again and listen
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Old 14th September 2018, 03:03 PM   #22
adason is offline adason  United States
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fr response
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Old 14th September 2018, 03:07 PM   #23
boswald is offline boswald  United States
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Hivi domes
Unless you play them at very high spl or push the mid low, the simple filters work very well.

I've been restoring some old 3ways with this sort of setup- the Scott s-15s.
Crossed simply at 1&4k they have 5" CTS mids in cans, so the mid is loafing and the extra low frequencies are easily handled.
In these the tweeters are the limiting factors, and they play loud better with a steeper rolloff.

I'm watching this project of yours, have been playing with the widerange 3.5" dome that Mad has- with HDS 5.25 instead, but you have a great look with all domes.
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Old 14th September 2018, 04:25 PM   #24
adason is offline adason  United States
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I have always crossed Dayton domes at 900hz. Hivi will be at 1000hz. That should keep them happy. I never play hifi loud. That's what I have PA speakers for...
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Old 14th September 2018, 05:35 PM   #25
boswald is offline boswald  United States
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Exactly.
It's only those poor souls who must make one set of speakers do all jobs who have to worry.
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Old 14th September 2018, 05:36 PM   #26
wolf_teeth is offline wolf_teeth  United States
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I xovered the DMN-A at 850Hz, IIRC, and it needed the Fs suppression for the lower range to remain undistorted. The top-end needed the zobel to help with the blend of the mid to tweeter. The resistor across the tweeter damps its Fs. The 4.7 ohms are for level, and the rest is just slope/order and knee damping.

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Wolf
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Old 14th September 2018, 05:56 PM   #27
wolf_teeth is offline wolf_teeth  United States
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Kinda neat getting a mention on a site with someone else's design because I also used it. I've not heard of that guy either, but I do know of Rob Elder and Lou Corragio (RIP).

Hong Nguyen also used it with an old Vifa M26, IIRC, the one with the weird woven phasing-style dustcap.

Later,
Wolf
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Old 14th September 2018, 08:18 PM   #28
adason is offline adason  United States
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thanks for the info wolf...
I will keep you guys posted with progress, just be patient, too many projects going on at the same time
but I want to finish this one to perfection
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Old 19th September 2018, 03:18 PM   #29
adason is offline adason  United States
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Made a small progress...started with peerless without the crossover, seen that 3kHz breakup, decided to use 2nd order filter to suppress it.
This is the result. Looks ok to me so far.
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File Type: jpg peerbefore.jpg (708.9 KB, 54 views)
File Type: jpg peercrossed.jpg (863.5 KB, 53 views)
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Old 19th September 2018, 03:20 PM   #30
adason is offline adason  United States
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Then I made some painting/surface strengthening. To match the look of HiVi domes.
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File Type: jpg domes1.jpg (557.4 KB, 51 views)
File Type: jpg domes2.jpg (758.2 KB, 57 views)
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