I came into a nice 1000 watt powered loud speaker we are using for small venues. (House parties, and small bars). Here's where I need help. We have no idea what kind of mixer we need. Assuming unpowered? We only have 3 people in the band(2 vocal mics, a few drum mics, guitar and bass obviously.) Any one got any wise words we are absolute NOOBS in the live show. We've played one, and let's just say sound was mediocre at best.