[Bob in St. Louis]

The OP can mount the 4 subs in the basement or crawlspace (if he has one) in an infinite baffle design, hopefully the house is bolted down.

Indeed!!!!!! 
As I mentioned "IB" above, with the correct amp, and some 32" drivers mounted in IB would be fantastic.
Doesn't matter if you want to play "Toccata and Fugue in D minor" (brown note?), or the latest and greatest "blow 'em up movie", this would give a tactile visceral experience like no other speaker/driver could.

[FullRangeMan]

I don't follow your reasoning at all, sorry.

Check the TS parameter η0 or ETA ZERO (reference electrical efficiency of the system expressed as %), note the full % 100 per cent is the max W rms.

[studiotech]

These monsters automotive and stage woofers are too powerful to home audio appliance, they will need about 100W or more to starting emit any sound, it not suited to a regular audio amp.  and......All speakers need a minimum power to made sound(below it there is no sound)

Both statements are false and misleading.  Even a watt or two makes  most speakers play at somewhere between 80-90dB.  You call this "no sound"?

Greg

[FullRangeMan]

Both statements are false and misleading.  Even a watt or two makes  most speakers play at somewhere between 80-90dB.  You call this "no sound"?

Greg

Pay attention to the topic Sir, that speaker max power are 20.000Wrms, it is not ''most speakers''. TS are calculated by mathematics, not by vague generalizations.

[Russell Dawkins]

Pay attention to the topic Sir, that speaker max power are 20.000Wrms, it is not ''most speakers''. TS are calculated by mathematics, not by vague generalizations.

Not sure we are providing the vague generalizations.

[planet10]

I hav ebeen asked to make a few comments…

1/ with no T/S you have to be very well off to drop $4k on an unknown. That would buy something like 16 SDX10 whixh would make 4 quad push-push woofers and likely in a much more practical box (with no T/S we have no idea how big a box is needed)
2/ 12v probably means aimed at car applications… but it would need to be a pretty big car.
3/ on 1st view the magnet looks far too large, one would have to do some drawings to get an estimate — look at the magnet of a 24” Hartley or a 30” EV to get why.
4/ the high power rating is moot, the wall circuit in a 110V system starts clipping at about 1.6kW
5/ the sensitivity specification is not only strange, but hard to believe. A woofer this big, with this big a magnet (unless of the lowest quality) should be more sensitive.

There is likely more to say, but that should be enuff…

dave

[FullRangeMan]

Dave do you could comment the TS η0 % or ETA ZERO electric efficiency from this speaker in view they want drive it with a small hi-fi amp?
16000 Watt 32 Inch Subwoofer
RMS Power: 8000W 
Voice Coil: 6"/152mm
https://www.alibaba.com/product-detail/16000-Watt-32-Inch-Subwoofer-PD32150B_60589689045.html

[studiotech]

Dave do you could comment the TS η0 % or ETA ZERO electric efficiency from this speaker in view they want drive it with a small hi-fi amp?
16000 Watt 32 Inch Subwoofer
RMS Power: 8000W 
Voice Coil: 6"/152mm
https://www.alibaba.com/product-detail/16000-Watt-32-Inch-Subwoofer-PD32150B_60589689045.html

Would you  please stop with the math equations based on completely dubious claims of power handling and just use a little logic.  It's a speaker driver.  It's whole job it to make sound.  If we choose to believe that it's sensitivity claim of 96dB is also dubious, let's be extra tough on them and say only 85dB, OK?  What's that mean?  It means we get 85dB of sound for one watt of input.  That's hardly "no sound"  as you've claimed.  Simple as that.

Greg

[planet10]

FullRangeMan,

Given the sensitivity spec (dubious as it may be) a small amp should be fine.

dave

[FullRangeMan]

FullRangeMan,

Given the sensitivity spec (dubious as it may be) a small amp should be fine.

dave

Thanks anyway Dave.
So guys feel free to buy this sub and inform me the results.

[planet10]

Being able to drive it with a small amp does not make it much better than tossing the money into  a black hole.

dave

[srb]

Even with the lightest cone materials available, I think 32" is too much mass to expect good damped control, at least without some kind of servo controlled braking system!

Steve

[poseidonsvoice]

Being able to drive it with a small amp does not make it much better than tossing the money into  a black hole.

dave

+100.

That, and if you watch the video that's on the linked web page (which WindChaser pointed to), you will see that in their catalog of drivers that they have a "BNC" series. Looking closely it appears they are copying the famous pro sound Italian driver company B&C which makes amazing drivers. One look at the 1st link the OP referenced gave me the creeps!

Caveat Emptor folks!

Best,
Anand.

[Russell Dawkins]

+100.

That, and if you watch the video that's on the linked web page (which WindChaser pointed to), you will see that in their catalog of drivers that they have a "BNC" series. Looking closely it appears they are copying the famous pro sound Italian driver company B&C which makes amazing drivers. One look at the 1st link the OP referenced gave me the creeps!

Caveat Emptor folks!

Best,
Anand.

Good catch re: B&C, and I'd imagine the sound track to the video repesents the sensibility behind the operation. It seems to incorporate Bronx cheers and farting sounds.

[*Scotty*]

Rough calculations for cone area equivalency indicate that three 18inch woofers totaling approx 750 square inches would be roughly equal to one 32inch woofer and a lot easier to deal with.
Scotty

[gils]

hello,

Woofer ( Infraflex ) 35,4"  105 db , price : 150 $

bye