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Ambience tweeters using small BMR drivers
Ambience tweeters using small BMR drivers
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Old 21st June 2019, 08:33 AM   #61
pelanj is online now pelanj  Czech Republic
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The cost would be too high indeed.

I did some measurements in room with UMIK and REW. The red line is listening position (psychoacoustic smoothing and raw) and the green line is near field top driver (0.5 m distance). I guess it confirms my impression of a non-agressive sound with the treble roll off.

These little boxes are just awesome to try different omnidirectional-like arrangements. I must definitely try also the 4 tweeter Sonab/Carlsson OA style speaker setup (placed around a top firing woofer) with them.
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File Type: jpg TEBM-NF.jpg (66.0 KB, 141 views)
File Type: jpg TEBM-NF-RAW.jpg (79.1 KB, 139 views)
File Type: jpg TEBM-LP.jpg (67.3 KB, 138 views)
File Type: jpg TEBM-LP-RAW.jpg (85.2 KB, 133 views)
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Old 21st June 2019, 08:54 PM   #62
bwaslo is offline bwaslo  United States
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Ambience tweeters using small BMR drivers
Yours roll off more and faster than mine did as I remember (of course it doesn't appear I saved any of the graphs ). I get the feeling that the unit-to-unit or maybe batch-to-batch repeatability on these isn't strong. The data sheet curve looks different as well.

edit: ah, but I did post them -- Ambience tweeters using small BMR drivers
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Last edited by bwaslo; 21st June 2019 at 08:56 PM.
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Old 2nd July 2019, 09:28 PM   #63
pelanj is online now pelanj  Czech Republic
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Today I finally did a quick and dirty test. I placed the ambient speakers to temporary stands. The effect is interesting and the speakers definitely add ambience. Now, without them, the sound seems a bit too dry, it is addictive. I have to play around with the level and also frequency limitations on the ambient speakers. I am really happy with the result.
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Old 6th September 2019, 08:34 AM   #64
pelanj is online now pelanj  Czech Republic
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I made more permanent stands - as these will be placed behind the MF/HF section on top of a midbass horn. I used a leftover piece from a 12" speaker baffle cut out and a piece of 48 x 19 mm plank
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File Type: jpg Ambient01.jpg (50.9 KB, 65 views)
File Type: jpg Ambient02.jpg (45.5 KB, 31 views)
File Type: jpg Ambient03.jpg (36.9 KB, 28 views)

Last edited by pelanj; 6th September 2019 at 08:36 AM.
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Old 8th September 2019, 01:14 AM   #65
Brinkman is offline Brinkman  United States
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Ambience tweeters using small BMR drivers
Given my recent cooking endeavors, it sounds like these ambience drivers are like a bit of audio MSG. I canít wait to try it out...
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