Mixers, mixing board
 

Hello guys,
I want to buy mixer and i need an advice.

My friend has a band and im helping them get equipment for their rehearsals.
We got 3 amps , 2 guitars and drums,
All 3 amps are 15w, Randall, Marshall and some chinese :D
We use our vocal in that marshall cuz it got input for the mic

So the thing is, we want to buy mixer and 1-2 sound boz/woofer idk on english how to say it.

Please tell me what should i take to support 2 guitars, 1 bass and vocal, we got a keyboards too... im just looking for mixers. Thank you

Btw.. the more cheaper is more better