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Near full range BMR (Balanced Mode Radiator)
Near full range BMR (Balanced Mode Radiator)
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Old 2nd October 2017, 02:54 AM   #531
Alvipet is offline Alvipet  Russian Federation
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Thanks Jerryo, my experience is almost the same. Just to be shure I am not alone with my bad expirence...
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Old 2nd October 2017, 10:23 AM   #532
Boden is offline Boden  Netherlands
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Hello Herbert,

Nice site with a lot info, thanks for that.

Your BMR picture is not entirely clear to me, mainly because of the lines drawn from the BM to the ears.

I suppose you intend to picture the BMR's facing each other on-axis, so the listener is situated approx. 45 degrees off axis in the listening triangle.

Maybe the holografic effect has to do with cross-talk cancellation.

Have you measured SPL at the listening position?

Kind regards,

Eelco
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Old 4th October 2017, 09:38 PM   #533
bob matthews is offline bob matthews  United Kingdom
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Really interested in those Ripoles with RA drivers. Ive four 12 RA drivers doing nothing and Id love a project for them. Do you have the details?
Bob
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Old 21st October 2017, 03:45 AM   #534
Alvipet is offline Alvipet  Russian Federation
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Last week, I experimented with impregnating for diffusers with a quartz nanopowder based composition. The result is very positive: the sound stage has become wider and deeper. If to compare directly with the speaker without impregnation, then there is less shouting on phonograms with high female vocals, violins and wind instruments.
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Old 21st October 2017, 05:58 AM   #535
perceval is offline perceval  Taiwan
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Impregnating?
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Old 21st October 2017, 06:11 AM   #536
Alvipet is offline Alvipet  Russian Federation
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Quote:
Originally Posted by perceval View Post
Impregnating?
Yes, it is.
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Old 7th December 2017, 09:46 AM   #537
Alvipet is offline Alvipet  Russian Federation
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Next step is line array floorstanding speakers:
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Old 7th December 2017, 10:14 AM   #538
perceval is offline perceval  Taiwan
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Very nice!
I know it was done for the visual, but if you had moved the line of mini BMRs to one side, it would have helped with baffle step.

How do you like them? What's the XO?

I tried 4 little ones with one woofer. Horizontal dispersion was great, but vertical was limited to the height of the 4 little BMRs, of course dictated by the line array behaviour. You have to make sure your head rests at the same level as the line of minis.

Last edited by perceval; 7th December 2017 at 10:17 AM.
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Old 7th December 2017, 11:47 AM   #539
Alvipet is offline Alvipet  Russian Federation
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Quote:
Originally Posted by perceval View Post
Very nice!
I know it was done for the visual, but if you had moved the line of mini BMRs to one side, it would have helped with baffle step.

How do you like them? What's the XO?
You seem to be right. I'll try if I make another pair of such speakers. I like their sound, very detailed and tight, with excellent dynamics. XO is 1 kHz
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Old 17th April 2018, 08:44 PM   #540
Alvipet is offline Alvipet  Russian Federation
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It seems that the theme has completely died down, it's time to show something new
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