General SPL General discussion of Sound Pressure Level topics.

Winnipeg's MACH 5 + SD Van

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Old Feb 22, 2010 | 03:33 PM
  #31  
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Originally Posted by N130Gv2
I should have never sold my Astro. Looking forward to where this is going Murilo.
Nice vans, but SPL wise I'd use a smaller car with smaller drivers and the same power.
Old Feb 22, 2010 | 08:38 PM
  #32  
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some nice info for you folks

you can see some things here, like

1- expected X actual gains (formula is gain = 10 log P1/Po)
2- impedance dropping as you put more power
3- Power = voltage x current, Impedance = Voltage / Current, hehe

other funny thing: it does not matter what you have inside the box, will play the frequency dictated by the port



Last edited by Soundigital; Feb 22, 2010 at 08:42 PM.
Old Feb 22, 2010 | 09:11 PM
  #33  
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murilo where are you doing all of this?
Old Feb 23, 2010 | 11:42 AM
  #34  
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Proving that he didn't sleep through grade 12 math?
Old Feb 26, 2010 | 08:03 PM
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Old Feb 26, 2010 | 08:18 PM
  #36  
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ohhhh nice, and results?
Old Feb 26, 2010 | 08:42 PM
  #37  
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WOW that is one hell of nice build right there. Have you got any numbers with the 4 18's and 16kD?
Old Feb 26, 2010 | 08:47 PM
  #38  
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not yet, with two SD8000s I busted 2 cones that we are testing. 11500W each amp voltage dropping to 15V.
Old Feb 26, 2010 | 08:56 PM
  #39  
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reconing and testing on weekend, same SPL as 2 subs tough, only more power handling.
Old Feb 26, 2010 | 09:40 PM
  #40  
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That's crazy power out of those amps. keep up the hard work bro.



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