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Post by ChrisB on Jan 14, 2017 11:43:36 GMT
The thread title says it all! A rather rustic version for starters.... And another, rather more polished version from another builder. Nice! |
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Post by malcolm on Jan 14, 2017 14:37:24 GMT
As an MBL owner who is partial to melons this is fascinating stuff. Interesting is his idea of having a voice coil at both top and bottom. I'm not sure that MBL have to worry about competition just yet, though!
Thanks for posting
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Post by MikeMusic on Jan 14, 2017 16:51:15 GMT
Looks so insane. I'm amazed it works
I like that music on the second clip
Anyone know who it is ?
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Post by MartinT on Jan 14, 2017 17:27:29 GMT
This was also in that FB thread.
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Post by MikeMusic on Jan 14, 2017 19:47:14 GMT
Too complicated !
Anyone heard them ?
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Post by MartinT on Jan 16, 2017 7:48:01 GMT
Jerry has MBLs, Mike.
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Post by ChrisB on Jan 16, 2017 7:58:50 GMT
....as also does new member, Malcolm.
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Post by jandl100 on Jan 16, 2017 8:18:35 GMT
I think the whole MBL radialstrahle principle is based on the wobble board.  |
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Post by MartinT on Jan 16, 2017 8:38:06 GMT
So are MBL speakers measured in wobbliness?
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Post by Sovereign on Jan 16, 2017 10:14:06 GMT
Those MBL videos are highly impressive,
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Deleted
Deleted Member
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Post by Deleted on Jan 16, 2017 12:28:01 GMT
It's an expensive way to make a speaker. The ones in the film cost £193K, which means about £20K to make.
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Post by MartinT on Jan 16, 2017 12:44:43 GMT
The rule used to be 4 x FOB cost = list price. Then again, you have to factor in the dealer demo cost and after-sales cost of such speakers, a bit like selling a Roll Royce. Fascinatingly complex speakers.
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Post by malcolm on Jan 16, 2017 15:04:36 GMT
It's an expensive way to make a speaker. The ones in the film cost £193K, which means about £20K to make. Well, of course, you don't have to get the top of the range; nice as that would be if you had the mansion to put them in. For about 1.8% of that, second-hand, you could get their "entry level" model. The tweeter and midrange is the same, but compromises in the bass department have been made which could well help with running them in a smaller room. The one thing that counts is that they sound magnificent. Listening to instrumental and chamber music, where the performers could conceivably fit in ones room, the illusion of the performers being in front of you really is astonishing. They have that resolution and attack of an electrostatic but with a solidity of imaging. Think of the difference between conventional box speakers and dipoles and then carry on at least as far again towards realism. |
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Post by sparrowlegsspeakers on Apr 10, 2018 5:24:30 GMT
Hi, I'm the guy who made that "Rustic" DIY MBL Speaker...
It's been just over a year since I made the first one, this is where I am now. ![Sparrowlegs Omni Directional Speakers]()
EDIT : Cant seem to be able to get the image to show... this is the link instead! 
- Sparrowlegs Omni Directional Speakers
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Post by John on Apr 10, 2018 5:46:29 GMT
Really impressive work Hope you can figure out how to insert the link
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Post by ChrisB on Apr 10, 2018 5:50:34 GMT
Hi, I spotted that you had joined a while back and it's great that you have peeped out from behind the curtains, so let me welcome you to The Audio Standard.
I was extremely impressed by your efforts, so please don't be put off by the rustic comment. Excellent work there, sir.
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Post by ChrisB on Apr 10, 2018 5:52:08 GMT
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Post by MartinT on Apr 10, 2018 5:56:59 GMT
Indeed, I've seen your efforts on Facebook. Welcome!
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Post by Chris on Apr 10, 2018 7:14:33 GMT
Hi, I'm the guy who made that "Rustic" DIY MBL Speaker...
It's been just over a year since I made the first one, this is where I am now. ![Sparrowlegs Omni Directional Speakers]()
EDIT : Cant seem to be able to get the image to show... this is the link instead!
- Sparrowlegs Omni Directional Speakers
Hello and welcome! Bet if you and steveeb got together the results would be pretty impressive! |
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Post by sparrowlegsspeakers on Apr 10, 2018 17:18:57 GMT
Cheers everyone
Hopefully following your instructions ChrisB, you see what I've already posted on FB -
For those of you who aren't aware, I knew nothing about audio 4 years ago. The first 3 years was a steep learning curve, putting theory into practice. The notion of building an Omni Radiator only came about due to the idea of reducing colouration by removing a cabinet totally.
If fairness, when I spied this thread over a year ago, I was over the moon, this plus the enjoyment of making a playing Omni's really spurred me on. Hence the latest development (if the inserted image work).
I understand this type of radiator isn't for everyone, but when they work, my god do they sing. The new builds need a few tweaking, the first measurements are promising: tweeter sensitivity at 89db, flat from 4khz upwards, but I do have a sharp dip at 12.3khz, which I'm in the process resolving.
The mid have improved from 90db +/-2 from 1khz to 7khz to 94db +/-1.5 from 600 to 5khz.
Give it a few for months and I will move on from Omni's as I'll have exhausted my capabilities due to lack of equipment.
Any questions welcome. Really I should work for MBL as I probably comprehend most of the design choices they've had to make.
Cheers for the warm welcome...
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