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Amit_112dB 21st July 2007 05:35 PM

highest Sensitivity subs
 
Can any one tell me wats the world highest sensitivy sub, just sub only without horns
well i found this JBL P1222 which sayz 97dB SPL @ 400rms aprox350$

http://www.jbl.com/car/products/prod...at=SUB&ser=POS

i guess its one of the most efficient n highest SPL i have ever seen in spec. of any sub

Have u seen anything better than this...

mpmarino 21st July 2007 05:42 PM

That sensitivity is most likely derived from the two 2ohm coils in parallel - so, a 1 ohm load. Also, it's not referenced to 1 watt - but to 2.83v.

The real spec at '1 watt' is probably much much less.

GM 21st July 2007 10:12 PM

The highest I've seen was the Aura 1808's ~98 dB/W/m measured some years ago, but no longer made AFAIK.

Amit_112dB 22nd July 2007 08:52 AM

Quote:

Originally posted by mpmarino
That sensitivity is most likely derived from the two 2ohm coils in parallel - so, a 1 ohm load. Also, it's not referenced to 1 watt - but to 2.83v.
The real spec at '1 watt' is probably much much less.

if its at 1ohm, u have to reduce 9db, so its 97-9 =which would be too less, JBL site just said 2.83v at 1 meter it does not say 1ohm or 2 ohm or 8ohm [:(], not a fair thing

BHTX 22nd July 2007 11:34 AM

http://www.precisiondevices.co.uk/showdetails.asp?id=16 :nod:

And of course, all the less significant out there. Just to name a small few..
http://www.usspeaker.com/eighteensound-21LW1400-1.htm
http://www.usspeaker.com/beyma%2018LX60-1.htm
http://www.usspeaker.com/beyma%2021L50-1.htm
http://www.usspeaker.com/EVX%20180B-1.htm

And let's not forget some of the 24 inchers!..
http://www.precisiondevices.co.uk/showdetails.asp?id=17
http://www.atomicspeakers.com/ele24.html
^ Atomic ELE24 is only a measly 95.3dB and dual 4 ohm, but with 19.6Hz Fs and 15mm Xmax though. :D

..I guess this is all different though. ;)
I think I've seen quite a few claiming over 100dB too, with response graphs (as if that really means anything).

el`Ol 22nd July 2007 03:58 PM

Here is a company that has some Ciare HW450 to give away for an intersting price:
http://www.sas.co.at/verkauf.htm
Here are the specs:
http://www.ciare.com/pdf/catalogo/HW450.pdf

AndrewT 22nd July 2007 04:36 PM

A pair of those hw450s in a cabinet would make a nice "little" sub speaker.
About 104db/2.83V/m will make a bit of noise around the neighbourhood. :devilr:

el`Ol 22nd July 2007 05:25 PM

I was mighty impressed by the 97dB of the JBL, but then I realized it is 2.83V at 2Ohm, so you have to subtract 6dB.

Cal Weldon 22nd July 2007 06:32 PM

That Ciare looks like nothing more than a lightweight PA woofer. Anything but a "sub". Down 20 dB at the 25Hz Fs.

nunayafb 27th July 2007 06:59 PM

From the bottom of the page in small blurry print
Quote:

*VOICE COIL CONNECTED IN PARALLEL
Another audio scam, P= V^2/R = 2.83^2/1 = ~8 watts when responsible companies use 1 watt for efficiency.


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