The switch is a DPDT switch with 6 pins. The audio is in stereo, I've tested it. I just want to know if there is a more hi-fi way of doing this. Is there anything I can improve?
Edit: I realize that in my picture, the way the wires are connected, it looks like 3 pins. There are 6, and it's connected for stereo sound.
As the audio signal for each channel travels from wire to plug to jack to wire to switch to wire to jack to plug to the headphones or speaker, is the quality of the audio signal any less? Can you measure sound quality with a multimeter?