Driver update help

[shame302]

Hi. I've currently got 4 Adire tempest X 15"drivers in two ib plenum. They're powered by one EP4000. I was looking to essentially doubling the drivers, plenum and Amp but I cannot find any more Tempest X drivers.

I'd be happy to find 4 more of those in good used condition but that's not looking good.

Are their any current "budget friendly" drivers on the market that would integrate with my current? I'm guessing no.

The next option I suppose would be pull my drivers and sell or use them for something else and upgrade to 18" drivers.

These caught my eye if they are indeed available:


www.fuaudio.com/product-page/fu1250-18


And Google targeted advertising thinks I should buy something like these:

www.skaraudio.com/collections/evl-subwoofer-series/products/evl-18-inch-car-subwoofer

Just looking for advice and recommendations. Thanks for your time.

[ThomasW]

Here ya go...........

www.madisoundspeakerstore.com/subwoofers/adire-audio-tempest-adtm15d4-15-dvc-subwoofer/

[shame302]

Sept 8, 2021 6:40:00 GMT -7 ThomasW said:

Here ya go...........

www.madisoundspeakerstore.com/subwoofers/adire-audio-tempest-adtm15d4-15-dvc-subwoofer/

Thanks Tom. Unfortunately they drop ship so they're out of stock everywhere. Adire blew the last few out the door for $250 and they aren't making more for the "foreseeable future".

[ThomasW]

Well that was my best quess ....

I will be difficult to find a driver that will match the Tempests.

The FuAudio look like the best bang for the buck. Thing is no one I know has any info about them.

[shame302]

Sept 9, 2021 12:33:11 GMT -7 ThomasW said:

Well that was my best quess ....

I will be difficult to find a driver that will match the Tempests.

The FuAudio look like the best bang for the buck. Thing is no one I know has any info about them.

Help me understand this. Kevin had the tempest x vas @ 282L. These FUsubs are listed @ 156L. That doesn't make sense to me.

I'm guessing that these ratings can be unreliable anyway but is vas not displacement? With ib the main goal is to move air, right?

[ThomasW]

Vas is the resistance of a column of air, it's not Vd which is the amount of air moved by the cone

[shame302]

Would 4 of these in place of my tempest x 15" be much, if an improvement at all?

www.parts-express.com/Dayton-Audio-RSS390HE-22-15-Reference-Series-High-Excursion-Subwoofer-22-ohm-295-292

[ThomasW]

Hi,

Sorry for the delay in responding, this is a busy time of year for us.....

If you're going to buy drivers in the $300 price range might as well get 4 of the Fi IB18's and sell the Tempests?