(Stupid iPhone, crappy pictures above)
Just saw this link, looks like a line array and a 28cm Ikea bowl.
Apple and the Rise of the Machines: Don't worry, they're just here to rock
Just saw this link, looks like a line array and a 28cm Ikea bowl.
Apple and the Rise of the Machines: Don't worry, they're just here to rock
Hi Studio Au !
I thought I might include sketch up drawings, if somebody is interested how these might look like 🙂 (was boring my self to death today 😀 ) The driver is Mark Audio CHR-70 (to scale)
P.S.: the black ring is a spacer ring, to take the bowl to full 28cm diameter (the bowls are a little bit less than 14cm high)
Internal volume 8,2L (I hope 😀 ) port 40mm diameter, 144mm length, according to markaudio web page project, the internal volume should be 6,4L.Suppose to be good for f3 52Hz, port tuned to 58Hz
Bought 4x 12cm bowls, I might stick my Logicrap drivers in (opposite ends) and 28cm sub-bowl 😀 for the desktop.
Danny
I thought I might include sketch up drawings, if somebody is interested how these might look like 🙂 (was boring my self to death today 😀 ) The driver is Mark Audio CHR-70 (to scale)
P.S.: the black ring is a spacer ring, to take the bowl to full 28cm diameter (the bowls are a little bit less than 14cm high)
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Internal volume 8,2L (I hope 😀 ) port 40mm diameter, 144mm length, according to markaudio web page project, the internal volume should be 6,4L.Suppose to be good for f3 52Hz, port tuned to 58Hz
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Bought 4x 12cm bowls, I might stick my Logicrap drivers in (opposite ends) and 28cm sub-bowl 😀 for the desktop.
Danny
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Hello,
I went to Ikea yesterday and bought the 20cm version for a small full range driver, the Fountek FR88Ex.
Put together, the 2 bowls also don't form a perfect sphere, there are about 1cm missing.
So, I also will use a spacer to make the 4/3 Pi R^3 formula work.
I was also thinking of using this spacer to make a multiple vent area, in a ring, all around the cabinet.
In a quick WinIsd simulation, it seems to work with 8 vents of 6mm diameter and 4.5cm long.
Any comments about this idea?
I went to Ikea yesterday and bought the 20cm version for a small full range driver, the Fountek FR88Ex.
Put together, the 2 bowls also don't form a perfect sphere, there are about 1cm missing.
So, I also will use a spacer to make the 4/3 Pi R^3 formula work.
I was also thinking of using this spacer to make a multiple vent area, in a ring, all around the cabinet.
In a quick WinIsd simulation, it seems to work with 8 vents of 6mm diameter and 4.5cm long.
Any comments about this idea?
I think maybe one of the smaller bowls and a waveguide soft dome midrange would look cool. Probably would sound cool to of course. I made a generic not to scale photoshop mashup. I just like the idea of a half sphere inside a sphere.
An externally hosted image should be here but it was not working when we last tested it.
i think those ikea speakers should retail for at least 500$
Ceramic Speakers designed by Joey Roth - simple, modern full range drivers for desktop or entire room | Joey Roth
(what driver is it? the enclosure is relly small)
🙂
Ceramic Speakers designed by Joey Roth - simple, modern full range drivers for desktop or entire room | Joey Roth
(what driver is it? the enclosure is relly small)
🙂
Based on the dimensional diagram the driver bezel is just over 4.5", the driver is VERY likely a TangBand.
dave
In theory, how good can spherical speakers in this fashion be? I have some pretty nice scan speak drivers that I'm thinking about plonking in some of these.
Could they be better than your average built coffin shaped 2 way?
Could they be better than your average built coffin shaped 2 way?
shouldn't that cilindrical kind enclosure be one of the worst possible geometry?
also is 70hz a realistic exstension for an enclosure so little?
Looks to me like he put a $15 TangBand driver in a $5 Ikea vase with maybe another $2 in binding posts/cork stoppers/wood and is selling it for $500. Nice work if you can get it, I guess.
It is similar to the B&W that works well.
I too suspect that extension is optimistic.
dave
I'm really interested in this design, especially the spherical theme.
So how is it?
Spherical god or bad?
I mean round, no B&W style...just simple round.
\
Danny
So how is it?
Spherical god or bad?
I mean round, no B&W style...just simple round.
\
Danny
if you add some for the amp, the case, the time spent making them (1 hour?) you arrive 50$ unit which at 10x hi-fi price standards is well within the habits of the market... this should just confirm what's in the other products... and then this isn't probably the most expensive use of TB drivers...
6moons audio reviews: Boenicke Audio SLS
...ok they are cool, but a BVR is way more.
Has anyone considered the propensity for strong internal standing waves?
I would suggest that attention be made to making the internal dimensions non-circular. Maybe foam or wooden wedges.
Also, how inert is the bowl structure? Any resonance apparent?
Other than those caveats ... beautiful work!
I would suggest that attention be made to making the internal dimensions non-circular. Maybe foam or wooden wedges.
Also, how inert is the bowl structure? Any resonance apparent?
Other than those caveats ... beautiful work!
The usual stuffing will take care of internal resonances - they're not huge spaces to dampen so any standing waves will be at higher frequencies. Structurally they probably sound fine. No flat panels to resonate, clamped at the edges.
I am currently using a pair of cube-ish ceramic enclosures for Jordan JXR6s. They're plant stands of some sort. Rang like a bell on their own but as soon as I glued a wooden baffle in place it rendered them pretty inert. Wooden ceramic bowls should be even better.
I am currently using a pair of cube-ish ceramic enclosures for Jordan JXR6s. They're plant stands of some sort. Rang like a bell on their own but as soon as I glued a wooden baffle in place it rendered them pretty inert. Wooden ceramic bowls should be even better.
Nice work! I've had similar ideas while looking at salad bowls, LOL!
How about this for a small tweeter, looks kind of like the old B&W tweeter enclosure:
Lacis Wooden Darning Egg 2.5" with Handle Product Detail -- CreateForLess
This might fit if the flange was cut off:
http://madisound.com/catalog/product_info.php?products_id=1767
Or these for lower output systems:
http://madisound.com/catalog/product_info.php?products_id=92
How about this for a small tweeter, looks kind of like the old B&W tweeter enclosure:
Lacis Wooden Darning Egg 2.5" with Handle Product Detail -- CreateForLess
This might fit if the flange was cut off:
http://madisound.com/catalog/product_info.php?products_id=1767
Or these for lower output systems:
http://madisound.com/catalog/product_info.php?products_id=92
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I really like the way the concrete champagne flutes came out, i tried one with plaster but it all went off before i could put in the tapered wooden former for the internal volume.
Cheap too. I still need to take off a few millimeters for the tweeter to fit snuggly, with take some photos when finished.
Cheap too. I still need to take off a few millimeters for the tweeter to fit snuggly, with take some photos when finished.