The audience must clearly hear all of the music with the proper balance between instruments, vocals, audio tracks, and the proper tonal balance for each of the above.

The performer must clearly hear himself and the other performers

Reverberation should be appropriate to the style of music

Extraneous sounds must be inaudible in the concert space

A perfect image by creating an illusion of spaciousness in which each instrument and/or vocals is a natural size, has a distinct location within the sound space, and does not move around

The sound of the concert should be inaudible outside of the concert space. This may not effect the concert itself, but may effect the possibility of holding future concerts

Each performance much provide an opportunity for the audience to make a new discovery

The audience must experience a sensation of quality sound

Speakers must be placed so that the audience are all seated in the blend zone