If you are into band music, you know how important it is to set up your band with monitors for a killer sound during a gig. A sound check that is thorough should be done, including with the blue nessie at MF.
For bands of three to six people with electric guitars and bass, a drummer, a singer and possibly a keyboard, playing in small venues to audiences of less than 200 (a typical start-up scenario) your amplification needs are threefold:
1) Back line – this includes your guitar and bass amps, your drummer
2) Monitors – these are on-stage speakers relaying “fold-back” – your own sound
3) PA – the front of house sound which the audience hears.