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Old 8th July 2004, 10:25 PM   #1
bob123 is offline bob123  United Kingdom
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Default sub amp

i am currently building a passive subwoofer and i need a single channel amplifer to power it. i would like to make it as i like to, does anyone have a simple and i mean simple circuit diagram for a 200w single channel subwoofer amplifier.

thanx for any replies
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Old 9th July 2004, 11:22 PM   #2
bob123 is offline bob123  United Kingdom
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i have designed a circuit BUT i dont know if it would work in real life. it works fine simulated and gives a voltage gain of 10 - is this enough? the circuit is atached, i have doubts that i will work in real life and i would like to know what is wrong and how to sort it out,

what would the distortion be on a circuit like this would it be ok for a subwoofer?

how much power will it output?
how can this be increased?
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Old 10th July 2004, 01:24 AM   #3
sss is offline sss  Israel
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try Rods amp at
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