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Post by luigi on Jan 19, 2017 13:44:28 GMT 12
I am wondering if anyone has a pair of 8-inch or 10-inch subwoofer drivers surplus to needs?
I am wanting to build a pair of small subs because the 15-inch monster I have currently riles the significant other.
Ideally they will work in a small sealed enclosure of around 15-20L.
Cheers
Luigi
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Post by luigi on Jan 25, 2017 10:37:43 GMT 12
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Post by luigi on Jan 25, 2017 10:57:38 GMT 12
Oops forgot one, the IB 15-incher. 
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Post by luigi on Jan 25, 2017 10:58:55 GMT 12
And naturally if there are no 8s or 10s around I'd offer these up for sale at decent prices.
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Post by Owen Y on Jan 25, 2017 12:35:39 GMT 12
Some serious infra-bass on offer here 
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Post by Deleted on Jan 25, 2017 15:02:43 GMT 12
Some nice looking drivers there man. Pity there's nothing 12inch for my Q50... Then again, my budget - or were that my long suffering wife? - will permit no further spending for a while yet... Good luck on the hunt.
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Pundit
Post by harvey on Jan 25, 2017 18:36:06 GMT 12
Would a 12" driver work? I have a Shiva X2 in a small sealed box and was thinking of buidling a larger ported design so would be happy to upgrade to a 15. I'd be keen on the Tempest.
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Post by luigi on Jan 27, 2017 7:57:37 GMT 12
Sure, I'm interested. I actually have the original subwoofer box I built for the Tempest; it's a downfiring design, built as per Adire's plans. It's not small but you'd be welcome to it as it is just taking up space. It has a hole on one side for a plate amp, and I have that lying around somewhere too! I think it is a Kiega 5250 or some such. 250wpc, peaking at 700 evidently. Can take some pics of both if you're interested. The T/S spec sheet for the Tempest can be found here: bgavinsound.com/Reference/Music/Adire/Tempest%20Datasheet.pdfLet me know a bit more about your sub. And also where are you located? Cheers Peter
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Pundit
Post by harvey on Jan 27, 2017 20:48:46 GMT 12
Hi Peter - I'm in East Auckland. The box is aprox 400w x 440d x 540h which is a little smaller than the minimum recommended for the driver as I was working to WAF when I built it originally. Since moved and that's not an issue now. Running a Hypex DS 4.0 amp which I'd hang on to. Is the Tempest an X or X2? Cheers Mark
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Post by luigi on Jan 28, 2017 5:45:42 GMT 12
Hi Harvey
No, it is the original Adire Tempest. Non-XBL version, as per the images.
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Pundit
Post by harvey on Jan 28, 2017 20:57:31 GMT 12
Thanks Peter, apologies for the ignorance I'm not that familiar with the Adire products.
The research I've done suggests that wouldn't justify the change.
I don't know a lot about the Rythmic drivers, would that be an improvement over the Shiva?
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Member
Post by luigi on Feb 3, 2017 15:18:14 GMT 12
Sorry for the delay been out of the country.
Honestly, I couldn't tell you from the figures. Not making things any easier, the driver has no markings to say what model it is.
However, it doesnt need to be used specifically with their own amp, this I know. It is a nice design too, much more modern than the original Tempest.
It has the silver aluminium cone, rather than the black cone of the later models, but it isn't that old.
Sorry but not much help on this one!
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Pundit
Post by harvey on Feb 7, 2017 19:55:24 GMT 12
OK cheers - I think it would be best for me to stick with the Adire.
Good luck with your search.
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Post by luigi on Mar 8, 2017 14:10:08 GMT 12
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Post by luigi on Mar 9, 2017 9:22:15 GMT 12
And here's a pic of it: 
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Post by luigi on Mar 10, 2017 11:02:30 GMT 12
This weekend, we remove the passive radiator and insert the other 10-inch active driver to have a pair in the same enclosure. Will be interesting to earball the outcome compared with one active driver and one PR.
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Post by luigi on May 2, 2017 8:14:22 GMT 12
Went the dual driver way, no turning back. Makes some serious bass for such a tiny enclosure, around 1 cubic foot or 28.3L. It just needs a fair amount of power is all. Can hardly even see it behind the speakers. But have another 15-inch sub project on the go. Just cant seem to help myself.
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Post by Owen Y on May 2, 2017 14:42:15 GMT 12
In series or parallel, luigi?
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Post by luigi on May 2, 2017 20:22:23 GMT 12
Each 4 ohm driver has dual voice coils and I parallel these up.
I have a two-channel sub amp so drive the woofers with a channel to each.
Haven't tried series cos I figured 2 ohms in parallel mode gets more power to each driver.
Only a hunch though, not sure of whether the theory is correct. Amp never gets beyond mildly warm.
Great bass for such a tiny enclosure, and the Dayton Ref stuff is amazing value.
Each time I go Stateside I get something sent to my hotel and simply take an oversize bag to check in coming back.
Next time one of their 1000wpc sub amps I'm thinking.
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