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post #1 of 2 (permalink) Old 08-16-2003, 07:57 PM Thread Starter
 
Join Date: Jun 2003
Posts: 254
amps and stacks

i am haveing a problem understanding how a 100 watt 3 combo amp can run itself and a stack or two....can someone please explain?If you divide it all you get less watts...what would make them all loud if the power is being divided?
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post #2 of 2 (permalink) Old 08-17-2003, 05:37 AM
 
Join Date: Mar 2003
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If two coherent periodic waves are combined, the combined level will be 6 db higher.

If you're running a tube amp and adjusting impedance to properly match the combined speaker load, then the output of your amp will be be the same. Put the same amount of power into two speakers instead of one, and each speaker will see 3db less power.

So you lose 3db power by running two speakers, but gain between 3db and 6db SPL. Therefore, the total SPL gain is between 0db (none) and 3db (a noticeable volume increase).
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