Pre note: Complete beginner talking here.
I have been DJ'ing for a while, using a traktor s4 combined with traktor 2 software. Mixing is fun, but I like to do more with music. A while ago I decided that I want to perform live. Today I've taken my first few baby steps into achieving that goal.
I bought myself 3 Korg Volca's (Beats, Keys and Bass).
However, upon arriving home I noticed all 3 volca's have a sync in/out and a single headphone output. My sound system (2.5, 2 speakers and a sub) only has one single (green) input and one double (red/white) input. Leaving me wondering how I am going to link all 3 volca's to my speakers.
After doing some research (note that english isn't my mother tongue, which makes it hard to search for the right terms) I learned that I either need a sound card, an audio interface or an audio mixer.
What are the differences between those, and what can I use so that my 3 volca's can simultaneously play on my speakers? Keep in mind that I hope to expand my 'studio' anytime soon, so the solution should have multiple inputs.
Thanks in advance