I have a new Berringer sound board in our church but our band is out of reach to the board. Powered Board is in the back of church and the band is in front. Is it possible to bring in a UNpowered board and run two vocal mics, piano and two guitars into this unpowered board and run a single 1/4" line to the Powered board? I will also run and line to two powered monitors from the unpowered biard.