Hello

I want to connect the output of a PC to an audio system that has stereo
phono RCA inputs and an AUX switch. Two questions:

1. I think the cable will need to be 15 metres. Will this work or will it be
too long and downgrade the signal? If okay, can anyone please recommend a
good supplier of a 15m cable with 3.5mm stereo jack on one end and phono
plugs on the other.

2. There is only one sound output on the sound card. What would be the best
solution for connecting both the PC's speakers and the audio system at one
go permanently (not having to plug and unplug).

Thanks.

Wilder