Double variable outputs for BOSOZ

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I have made the BOSOZ for some years now and everything worked out ok. I have recently constructed a subwoofer for my main speakers but my preamplifier has only one variable ouput.

How can I install a second variable output for the subwoofer or for a second power amplifier? Do I simply connect in parallel another output together with the one that I now have? Will this lower the output signal on both autputs? Is there onother way of doing this?

Thank you
George
Athens, Greece
 
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gchrist said:
I have made the BOSOZ for some years now and everything worked out ok. I have recently constructed a subwoofer for my main speakers but my preamplifier has only one variable ouput.

How can I install a second variable output for the subwoofer or for a second power amplifier? Do I simply connect in parallel another output together with the one that I now have? Will this lower the output signal on both autputs? Is there onother way of doing this?

Thank you
George
Athens, Greece


balanced or unbalanced ?

if additional volume results in lowering present output , just make buffer with IRF as source follower . you have everything needed already in box ........ meaning on PSU ;)
 
Zen Mod, here's the schematic... remove my post if it's not ok to post it up.
 

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gchrist
if I understood you correctly - you are using BOSOZ unbalanced ?

in that case - un-tie negative output from gnd , take signal from it to your subwoofer amp,and then set desired phase directly at speaker (reversing leads on speaker , to achieve adequate polarity of acoustic output)
 
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