I'm looking into buying the ORB audio sattelites.
I was wondering if it would be possible to design a spherical subwoofer enclosure matching the ORB's.
are there any disadvantages (other than very difficult to build)
or sonic problems to such an approach?
if this has been attempted before, i there any documentation available about it?
(other option would be to buy a standard sub, but the sphere would look really nice in my interior..)
many thanks..
I was wondering if it would be possible to design a spherical subwoofer enclosure matching the ORB's.
are there any disadvantages (other than very difficult to build)
or sonic problems to such an approach?
if this has been attempted before, i there any documentation available about it?
(other option would be to buy a standard sub, but the sphere would look really nice in my interior..)
many thanks..
A spherical enclosure will have a single, very strong resonance, but unless the enclosure is very large it will occour outside the typical frequency range for a subwoofer.
As for construction I would buy a beachball of around the volume you want and apply fibreglass around it to a thickness thats suitable, then cut out mounting holes ect.
As for construction I would buy a beachball of around the volume you want and apply fibreglass around it to a thickness thats suitable, then cut out mounting holes ect.
thanks,
as for building I was thinking more along the lines of glueing different MDF circles together with reinforcements in the center
as for building I was thinking more along the lines of glueing different MDF circles together with reinforcements in the center
Hi
Kris Metaverso of US enclosure made some 24"
NHT based subs that were still upsettng the neighbours at 18hz !
Like smaller spheres you may have to put in absorbsion
cores in the centre then there is balance and supports to
consider. You dont want the unit going face down !
Ferguson Hill also do a sphere. THe Orbs sort of look
very Gallo'ish. The custom paint work is great fun!
Luxman also do some spheres in Aluminium.
They had 5 with tweeters going for AUD$199 in West OZ
http://www.fergusonhill.co.uk/frames/frameset.htm
Kris Metaverso of US enclosure made some 24"
NHT based subs that were still upsettng the neighbours at 18hz !
Like smaller spheres you may have to put in absorbsion
cores in the centre then there is balance and supports to
consider. You dont want the unit going face down !
Ferguson Hill also do a sphere. THe Orbs sort of look
very Gallo'ish. The custom paint work is great fun!
Luxman also do some spheres in Aluminium.
They had 5 with tweeters going for AUD$199 in West OZ
http://www.fergusonhill.co.uk/frames/frameset.htm
Attachments
wow,
those Ferguson Hill's look incredible..
but the price is a bit steep..
I think I going to try building one using a 10" driver
sphere would be around 40 - 45 cm in diameter, maybe 50. I will see during the design phase.
any ideas on how something like this needs to be calculated (after i chose a driver)
many thanks..
those Ferguson Hill's look incredible..
but the price is a bit steep..
I think I going to try building one using a 10" driver
sphere would be around 40 - 45 cm in diameter, maybe 50. I will see during the design phase.
any ideas on how something like this needs to be calculated (after i chose a driver)
many thanks..
not really a sphere...but cool none the less
12 sides...10 of them have drivers....
12 sides...10 of them have drivers....
An externally hosted image should be here but it was not working when we last tested it.
Well, you might have won if this wasn't in the subwoofer section. Welcome aboard. Why not take the time to introduce yourself over in the introductions section.
Cal
Cal
Member
Joined 2003
Wow, those sure are perdy speakers pneuma! I'm sure they cost a pretty penny too being carved out of marble and all 🙂
trying to get this back on track..
OK, so far it looks like spherical enclosures are pretty exclusive and horribly expensive..
makes me want to build one for sure...
what i would like to know is whether there are things to keep in mind when designing the sphere. other then normal enclosure rules. (box volume etc..)
454Casull: can you elaborate on dubious benefits? what do you mean?
OK, so far it looks like spherical enclosures are pretty exclusive and horribly expensive..
makes me want to build one for sure...
what i would like to know is whether there are things to keep in mind when designing the sphere. other then normal enclosure rules. (box volume etc..)
454Casull: can you elaborate on dubious benefits? what do you mean?
Wow, those sure are perdy speakers pneuma! I'm sure they cost a pretty penny too being carved out of marble and all
Alas, they are not mine. I found those by googling for spherical enclosures.
As pointed out, they aren't actually subs, but they are a killer concept nonetheless.
P.
there was an installer on elitecaraudio.com who did a install for a SUV of some sort that had 4 spherical sub enclosures in it. I can't find any pictures, but he told me that he took beach balls, fiberglassed them, cut a part out, pulled the beach ball out, and glassed a MDF ring into it. It was really sweet looking, and is possible
Hi
If you want spheres of about 300mm have
a look at the Historystones molds.
Then maybe two 6-7 inch subs (TB?) will allow
a higher crossover as judging from the size of
those Orbs like the Gallos they need a higher
crossover point than commercial advertising might
suggest! ! ! You could use a lightweight concrete
like Cemlite(R) HE at 1.47kg/litre. for the subs.
Regards
Anthony
http://www.historystones.com/hisstonmolfo.html
If you want spheres of about 300mm have
a look at the Historystones molds.
Then maybe two 6-7 inch subs (TB?) will allow
a higher crossover as judging from the size of
those Orbs like the Gallos they need a higher
crossover point than commercial advertising might
suggest! ! ! You could use a lightweight concrete
like Cemlite(R) HE at 1.47kg/litre. for the subs.
Regards
Anthony
http://www.historystones.com/hisstonmolfo.html
thanks for this Anthony.
but concrete isn(t exactly what I had in mind.
I'm currently thinking of using polyester or a wooden sphere built by layering different sized rings together.
the latter would also have some potential for good bracing (make one ring with a cross section)
but concrete isn(t exactly what I had in mind.
I'm currently thinking of using polyester or a wooden sphere built by layering different sized rings together.
the latter would also have some potential for good bracing (make one ring with a cross section)
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