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Amp Blowing fuses

Old May 30, 2009 | 10:18 AM
  #41  
choray911's Avatar
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Originally Posted by Calcvictim
I was unaware that the amp was a 2 channel amp, so I said no bridging should be done.


Amps are bridged by connecting the possitive lead of one channel to the negative of another channel and using the remaining leads to connect the speaker.


an instructions manual for a JL Audio amp is here, if you want to verify
http://safemanuals.com/user-guide-in...AUDIO/300-2-_E
Also on page 3 top left it says that the 300/2 "optimizes power for any impedance between 1.5 and 4 ohms per channel (3-8 bridged.)" Even a JL 2 channel can't run 2 ohms bridged, and they were considered cheater amps back in the day. Orgional poster should have gotten a dual 2 ohm or dual 8 ohm sub instead of a dual 4 ohm.
Old May 30, 2009 | 07:36 PM
  #42  
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From: pǝq s,ɐɯɯoɯ ɹnoʎ uı
Originally Posted by Pearl96Max
Taken directly from the exact manual you sent:

To bridge a pair of channels, use the
“Left +” and “Right –” speaker connectors
only (the “Left –” and “Right +” remain unused).

Originally Posted by Calcvictim
Amps are bridged by connecting the possitive lead of one channel to the negative of another channel and using the remaining leads to connect the speaker.
Please, for your own safety do not try your theory. Perhaps you misunderstood what you were reading, so please do not try it. You should Not be connecting the amplifier to itself.
are you being obtuse on purpose?

what I said is exactly the same as the manual stating....try reading slower
Old May 30, 2009 | 08:22 PM
  #43  
Pearl96Max's Avatar
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Originally Posted by Calcvictim
are you being obtuse on purpose?

what I said is exactly the same as the manual stating....try reading slower
How do you take these as being the same? Let alone exactly. In your theory you are using all 4 terminals - two of them connected together and the other two connected to the driver in question. The right way for it to be done as I already showed is two connect two of them to the driver, the other two are left unused. However I will make them larger for you to see this time.

Perhaps you should be reading slower ?

Originally Posted by Calcvictim


Amps are bridged by connecting the possitive lead of one channel to the negative of another channel and using the remaining leads to connect the speaker.


an instructions manual for a JL Audio amp is here, if you want to verify
http://safemanuals.com/user-guide-in...AUDIO/300-2-_E
Originally Posted by Pearl96Max
Taken directly from the exact manual you sent:

To bridge a pair of channels, use the
“Left +” and “Right –” speaker connectors
only
(the “Left –” and “Right +” remain unused).


Please, for your own safety do not try your theory. Perhaps you misunderstood what you were reading, so please do not try it. You should Not be connecting the amplifier to itself.
Old May 30, 2009 | 08:50 PM
  #44  
importcf's Avatar
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From: Belmont, MA
Originally Posted by choray911
This chart does not apply to OPs situation, completely disregard. Traditional amps are not 2 ohm stable bridged. When you bridge the amp the left and right outputs are combined internally and the impedence is cut in half. The maximum load that can be bridged is 4 ohms, which internally is 2 ohms when the left and right channels are combined. If you were to put a 2 ohm load bridged on the amp, it would really see a 1 ohm internal resistance, which would cause the power supplies pull more current, thus blowing fuses.

With your set up there is no power difference between a 2ohm stereo connection and a 4 ohm bridged connection. The amp will produce the same amount of power either way.
THANK YOU!!!
Old May 30, 2009 | 08:53 PM
  #45  
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From: Belmont, MA
this amp is not 2ohm stable BRIDGED rewire and test it out if not buy a new amp take a look at some phoenix golds the older ones are the **** i used to have a zx450 i think it was
Old May 30, 2009 | 08:57 PM
  #46  
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From: Belmont, MA
http://cgi.ebay.com/Phoenix-gold-M100-amp_W0QQitemZ220421938235QQcmdZViewItemQQptZCar_Am plifiers?hash=item33522bdc3b&_trksid=p3286.c0.m14& _trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A13 18|301%3A0|293%3A1|294%3A50

these are very under rated high quality amps u will get more than 500w outta this easy exp at 1ohm

Last edited by importcf; May 30, 2009 at 09:07 PM.
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