Three different cables

I intend to wire three different signal cables on only one 1/4 jack in my studio so I can send LINE/INSTRUMENT or SPEAKER signal to another room instead of using three different jack. Can I do that? :(

You can usually wire inputs together (one output going to 2 or 3 inputs) with no problem, as long as the output has enough drive (low enough impedance) to not be loaded down - but NEVER, NEVER, NEVER wire OUTPUTS together - one of them will always have more power, and the rest will DIE. If you're not sure what I mean by this, post back with EXACTLY what you want to connect together... Steve

Thank you for help. I could be a little more clear My idea is to use only one jack (cost and space) to wire three different signal cable but to use only one of this sort of signal at the time (INST or LINE or SPEAKER none of them at the same time) Thanks