New to setting up speakers...
I recently bought a pair of passive monitors as part of my attempt at a mini home studio and will admit I do not know the first thing about hooking them up.
the monitors in question are http://www.krksys.com/krk-studio-monitor-speakers/r6.html
I have a small mixer that I use as my main interface between my computer and instruments/mics which has an RCA output that I would like to connect my monitors to, however I am concerned that it will not be enough to power the monitors and it is my understanding I may need a power amp?
My mixer is http://www.behringer.com/EN/Products/302USB.aspx
could someone perhaps point me in the right direction as to how to set this up, what wiring/connections I will need and power amps if necessary?
As you suspected, you do need a power amplifier to take the output of your mixer and drive the passive loudspeakers. You can't use a simple hi-fi amplifier for this job as its inputs would be overloaded by the output of the mixer, so you have to be a little careful in what sort you choose.
Can you tell us where you are located so we could advise on suitable amplifiers that are available in your part of the world?