Sexiest woofer ever? specs?

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well none of you have posted this one.... But I think it's a sexy sub

My sub:
 

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Enough kiddies toys...
All the Xmax in the world,and your still limited by your impedence mismatch into the surrounding air. Sensitivities stuck in the 90dBs.

2kw into a 18" 'super woofer' on 3 cubic ft enclosure = how much 2HD due to air nonlinearity:smash: *party pooper*
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[I dont like the aura 18"s not chunky enough

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More of an appendage than a physically moving transducer😀
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http://homepages.paradise.net.nz/sbk1/sys.htm

16 Basstech7s might suffice.
http://www.servodrive.com/basstech7.html😀

http://roborg.freefronthost.com/infra-horn.htm
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Is AlNiCo still the ideal magnet material or is Neodymium approaching quickly?

Alnico is the best of the generally available permanent magnet materials particularly wrt stability with temperature and lack of flux modulation....as long as you don't abuse it by exceeding the design power rating or mechanically banging the driver around (neither of which, IMO, should be a problem in a home audio application of a professional driver). If you do, it will tend to reduce its magnetic flux over time. I believe the susceptibility to alnico demagnetization from overpowering is significantly reduced with underhung voice coil designs.
 
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