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help selecting sub and amp

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Old 03-11-2011, 01:48 PM
  #21  
SparkleCityHop
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Not to thread jack, but to both of you that have bought this box, what do you think? I was planning on ordering one this weekend.
Old 03-11-2011, 02:45 PM
  #22  
ITSJ^Y
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Originally Posted by TURBOROADSTER
This has been known for years ,I've been in car audio for 25 years and this is one of the first things I was taught . I guess it's just the younger generation that don't understand it . They think a mono amplifier load is the same as a 2 channel amplifier bridged load , False . If you have a mono car amp , it is a one channel amp . If you hook a 4 ohm speaker to it , it see's a 4 ohm load , 2 ohm speaker to it , it see's a 2 ohm load Etc , Etc . When you bridge an amplifier , your taking the voltage from each of the channels and adding it together to double voltage to the speaker(More Power) . In doing so your also doubling the current draw on the amplifier , The amplifier "thinks it is trying to run a impedance load that is lower than what it is actually running . If you hook up an 8 ohm speaker to the bridged amp , The amp is running an 8 ohm load , but it actually "See's it as a 4 ohm load because of the extra current needed in bridged mode .
Just go outside and 1)take a dual 4ohm vc sub wire it in series and hook it up to a bridged 2 channel amp then 2)take the same sub wire each vc to one channel and see which is louder. I'll give you the answer..... door number 2. Why? Because, it is running at 4ohms not 8ohms and thus has more power.
Old 03-12-2011, 09:34 AM
  #23  
TURBOROADSTER
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Originally Posted by ITSJ^Y
Just go outside and 1)take a dual 4ohm vc sub wire it in series and hook it up to a bridged 2 channel amp then 2)take the same sub wire each vc to one channel and see which is louder. I'll give you the answer..... door number 2. Why? Because, it is running at 4ohms not 8ohms and thus has more power.
No , your not listening . That Bridged amp is actually" seeing" a 4 Ohm load when you hook that 8ohm series wired sub to it, thus putting out tha amps rated power at 4 ohm mono . So if the amp is 50x2 @4 ohm or 200x1 Bridged @4ohm .It would be getting 200 watts of power . Option one would be louder . This is what your not understanding . Door number 2 as you call it , would only be getting 50 watts per coil .

Last edited by TURBOROADSTER; 03-12-2011 at 09:41 AM.
Old 03-12-2011, 10:46 AM
  #24  
ITSJ^Y
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Originally Posted by TURBOROADSTER
No , your not listening . That Bridged amp is actually" seeing" a 4 Ohm load when you hook that 8ohm series wired sub to it, thus putting out tha amps rated power at 4 ohm mono . So if the amp is 50x2 @4 ohm or 200x1 Bridged @4ohm .It would be getting 200 watts of power . Option one would be louder . This is what your not understanding . Door number 2 as you call it , would only be getting 50 watts per coil .
I'm listening to what you are saying but I am saying you are wrong. I have done this and I am telling you that wiring each 4ohm voicecoil to one channel of a 2 channel amp is louder than wiring in series and bridging it. I have done it on every person's system that i have met and they thought it was loud because it was bridged and showed them that it is louder the other way.

Last edited by ITSJ^Y; 03-12-2011 at 10:47 AM.
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