I have an mp3 player that has a headphone/speaker output socket of 3.5mm type. I want to use it to feed into a group of 4 speakers sets for PCs. The maximum cable distance should be around 8 meters long. I would like to be able to regulate the volume going into each speaker set (which will be in a different room) from a device connected directly to the player, and this devide then feeds the speakers.
So the questions are:
- What is this device that I'm looking for called, or group of devices for this kind of use to connect into a common player? (any recommendations as well?)
- What kind of cables will I use to bring the output to the speaker proximity with a female jack for the 3.5mm input?
- After what length will I need to use a repeater? (does this depend on the device that feeds the signals and cables it uses, or if it feeds into 3.5mm it is a standardized power output and therefore standard length) And any recommendations if I need one?