Im assembling a small 2.1 music system with a built in usb/fm reciever and an aux input. I completed the amplifier for subwoofer along with its LP Filter and a stereo amp for driving small speakers. The problem I have is that I am unable to split the stereo audio channel between the sub's filter and the stereo amp. The filter has two 47k resistors on both channels which down-mixes it to mono before going to the filter ic for the subwoofer. If I connect the inputs of the resistors and the stereo amp's input together to the audio input signal in parallell, the output is too low. I think I need a splitter, so could anyone guide me on how to go for it? Preferring a passive and simple one. or should I go complex like this? http://freecircuitdiagrams4u.blogspot.com/2009/09/three-channel-audio-splitter.html
Thank You
Thank You
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