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Old 21st July 2007, 05:35 PM   #1
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Default 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...
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Old 21st July 2007, 05:42 PM   #2
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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.
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Old 21st July 2007, 10:12 PM   #3
GM is offline GM  United States
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The highest I've seen was the Aura 1808's ~98 dB/W/m measured some years ago, but no longer made AFAIK.
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Old 22nd July 2007, 08:52 AM   #4
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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
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Old 22nd July 2007, 11:34 AM   #5
BHTX is offline BHTX  United States
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http://www.precisiondevices.co.uk/showdetails.asp?id=16

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.

..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).
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Old 22nd July 2007, 03:58 PM   #6
el`Ol is offline el`Ol  Germany
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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
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Old 22nd July 2007, 04:36 PM   #7
AndrewT is offline AndrewT  Scotland
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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.
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Old 22nd July 2007, 05:25 PM   #8
el`Ol is offline el`Ol  Germany
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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.
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Old 22nd July 2007, 06:32 PM   #9
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That Ciare looks like nothing more than a lightweight PA woofer. Anything but a "sub". Down 20 dB at the 25Hz Fs.
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Old 27th July 2007, 06:59 PM   #10
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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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