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 2.83v ratings vs impedence vs spl, finaly explained for you
southside connections
Posted: Sep 14 2009, 09:47 AM

D' Scientist

Group: Member
Posts: 6,456
Member No.: 1,928
Joined: 20-August 08

check the link out

2.83V is a measurement that is most accurate on single 8ohm speakers. when using that measurement on lower impedance, you get HUGE gains on the "trick'ing" numbers.

8ohm @ 2.83V = 88dB efficiency
4ohm @ 2.83V = 91dB
dual 4ohm(2ohm) @ 2.83 = 94dB
dual 2ohm(1ohm) @ 2.83 = 97=dB

so, you can look at a dual 2ohm sub, rated at 2.83V, and it's efficiency can be 9dB higher. f*ck ratings like that. also, some really cheap """subs""" may be rated at 1.5kHz where they have peak efficiency, but may be WAY lower efficiency at any frequency you'd ever play them at.

user posted image


me and leffy cah have d same avatar man gosh!!!!
Posted: Sep 14 2009, 09:58 AM


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Posts: 34
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Joined: 12-March 09

Alot of people does be fooled by this when buying a sub...they think a higher sensitivity means it will play louder than other speakers... however that is up to the box it is placed in...
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