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Shahinian Obelisk Passive Radiator Replacement

I just bought a pair of good condition Shahinian Obelisk speakers at a garage sale for $5 :-). Unfortunately, both 10" passive radiators had been completely removed and are gone. Shahinian Acoustics wants $275 for a replacement pair. Parts Express has replacements for $60 (http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-494). There are also used pulls from good speakers on ebay for $25+ dollars.

My question is are passive radiators that sonically critical and precisely matched that I have to buy the $275 pair from Shahinian or could I get by with one of my other choices without muddling up the speakers? And if so which ones? Or are there other choices or vendors I should consider for the replacement? Thanks for the advice!!
zymaze
tpsonic
1,092 posts
 
Always best to call and discuss the problem with one of their techs.
rodman99999
6,125 posts
 
Mr Z: The size and weight of a passive radiator is determined through a formula based on the Theil/Small parameters of the woofer and the volume of the enclosure. There are other factors involved, but basically the radiator takes the place of the mass of air in the tuned port of a vented box. It's clitical to get the correct ones for the design, IF you want the designer's intended bass response.
delliott
6 posts
 
You got a GREAT pair of speakers for $5, why not spend the $275 and have an excellent pair that, if you so wished, you could sell and easily make your money back. If it were me, I'd repair them with original parts and wouldn't part with them.
Good luck!
rwwear
2,867 posts
 
I would go with the real thing. You should check the woofers for foam rot also.
mingles
796 posts
 
I heard a pair of Shahinian Hawks tonight and was extremely impressed. If the Obelisks sound anything like the Hawks, they're keepers. I agree with others... get the OEM drivers. $275 is a fraction of what these speakers go for used.
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