|The problem is the requirement for a low pass filter. In the old days it was done with a large discrete component (inductor) but these days it is part of the electronics. This is the sort of thing you have to make, buy, or tap into:|
It would require a suitable power supply too. I doubt you would be lucky enough to find + or - 12V as part of the amplifier power.
If this was part of the original circuit card it is not easy to just tap into it - that's assuming it isn't faulty. Maybe it is part of the amplifier - who knows!
As you can see it all gets a bit complicated unless you just whack the speaker wires into the computer and don't worry about the middle and top frequencies coming through as well. Definitely not the way to go.
Sure, you need that circuit diagram, but they are rarely issued. I used to build my own amps and radios but those days are long gone. That is the sort of person you need to be to deal with this, hence my earlier reference to "hands on".
Always pop back and let us know the outcome - thanks
message edited by Derek