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      12-18-2012, 09:29 AM   #77
kaigoss69
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Drives: '08 335i
Join Date: Jul 2008
Location: JAX

iTrader: (5)

I suspect your problem has to do with the efficiency of the w7. Look at the graphs I posted, the w7 was getting 1000w vs 500w for the others. 3 db higher means twice as loud. I don't have the program here now but I bet that with a true IB sub you could reach the same output on less than 1/3 the power.
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