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diy sub

Audiolab 6000A Amplifier

amallalone

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Feb 27, 2016
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india
Hi.. I broke my Hyundai 5.1 home theatre which was already dead..I found toroidal transformer rating 13.5-0-13.5v x5.6a and 11.2v x1.2a ..with 8 inch subwoofer rating 8ohm 60watts..now I am thinking of using this two to make a active sub.. please advise regarding power amp PSU and sub crossover..
 
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palka

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May 7, 2011
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after rectification you will get about +/- 18V DC, this may be inadequate for the amp. Please confirm from the vendor.
 

palka

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May 7, 2011
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The voltage after rectification depends on the voltage of the secondaries of the transformer ( which in +-13.5V in your case). so getting a better rectifier will not get you a higher voltage.
 

amallalone

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Feb 27, 2016
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Please help..
The subwoofer I am using has no specifications on it..only 8inch 60 watts..no f or q value..now the problem is I can't decide what should be the measurements of its box that am going to make..is there any golden rule for box measurements?? I prefer ported..
 

palka

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May 7, 2011
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In the absence of speaker parameters, you can use the original box dimensions.
 
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