Any idea what to load these weird subs with? |
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fat_brstd
Old Croc Joined: 23 August 2008 Location: Melbourne, OZ Status: Offline Points: 2125 |
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Posted: 07 May 2018 at 11:17am |
Got given a pair of these boxes unloaded, found a little bit of info on them here - https://www.poweraudio.ro/forum/viewtopic.php?f=92&t=9677 but got no idea about what sort of driver will be suitable. I would prefer to be able to run them as a kick bin but the description on that thread seems like they are designed for sub bass.
They are designed for the magnets to sit on the outside but that makes no sense to me as they fire into a large chamber with a small port that goes into a horn. makes more sense to mount them paper facing forward so its a more like a reflex with a flared port. Either way any suggestions on drivers would be good. I've got a pair of Eminence Omega Pro's but would need to source another pair or could get some RCF 18P300 for a good price but as these were free boxes I want to keep the cost down as much as possible so looking at budget options if at all possible. Plan: |
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markie
Old Croc Joined: 31 October 2005 Location: Sunny Liskeard. Status: Offline Points: 4570 |
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I believe power audio is Mircea Bartic who is a member on here. Might be worth a PM to him.
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If it's got wheels or tits it's gonna cost a fortune
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CHAMPION
Old Croc Joined: 30 September 2004 Location: United Kingdom Status: Offline Points: 3667 |
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Sticks n Stones
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Hemisphere
Old Croc Joined: 21 April 2008 Status: Offline Points: 2272 |
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They're a hybrid design a bit like an EV T18 or a Cubo.
You could look at the Cubo 18 Hornresp input parameters as a starting point for modelling it, as it's basically the same design but with variation on segment diameters/lengths and chamber sizes. Main difference being some path length after the driver and a much narrower throat. Shouldn't be too difficult to sim at least enough to know if a driver will perform adequately in it. Given the size and loading it should be suitable for sub, and these hybrid designs are known for being quite forgiving on driver selection. High efficiency bandwidth product, BL, xmax, etc and you can't go far wrong. It would work for kicks if you wanted it to.
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nickyburnell
Old Croc Joined: 06 February 2005 Status: Offline Points: 4410 |
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Based on T18 and Cubo performance the Omega would make a good kick cab
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It's everything, not everythink!
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Hemisphere
Old Croc Joined: 21 April 2008 Status: Offline Points: 2272 |
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When I say it's basically the same design I only mean to the extent that it shares a loading arrangement so the starting point for modelling it properly would be the same. Performance and optimal drivers could be way off, but a driver that does very well in a Cubo should be at least decent.
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7810 |
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Installing the drivers cone facing out will make the back chamber smaller, thus tuning the box higher.
So it will lose few Hz on the low end.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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Xoc1
Registered User Joined: 15 October 2012 Location: Devon UK Status: Offline Points: 397 |
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Putting the magnets in the chamber will also reduce the amount of cooling for the drivers.
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