Live Sound Reproduction refers to the amplification of live audio, such as speech or music, through the use of a Sound Reinforcement system.
This is a typical setup for live sound reproduction in an auditorium, along with the most common interfaces/cables:
- Microphones on stage into Multicore (XLR)
- Guitars into Effects Pedals or Effects Units (Jack)
- All into a multicore or snake, via a Stagebox, to Front of House (XLR)
- Mixing Desk at Front of House controls the levels on the channels and outputs
- Outputs to an Amplifier
- Amplifier to relevant speakers (Speakon, XLR, Jack)
On top of this, monitor feeds may be sent from the mixing desk back down the multicore (using the returns) to the stage, so that the performers can hear themselves talk/sing/play. Wireless in-ear monitors are becoming increasingly common for this purpose. A drummer will often have a special set of speakers, to output the Drum Mix. Larger setups can often include a dedicated Monitor Engineer to control instrument levels for each performer.
The Sound Operator operating the mixing desk will usually have a set of monitors and/or headphones to listen to channels without them being output over the main system. This is referred to as Pre-Fade Listen.