short period of time after the sound from the additional speaks 18 a 18 b in large venues this delay may be detectable by the audience members and may lead to echoing or reverb type effects in order to avoid such effects the audio signal provided to the additional speakers 18 a 18 b is delayed before being projected into the audience area 4 the signal may be delayed by the additional speakers 18 a 18 b the stage amplifier 14 or any other component or device within the arrangement 1 sound from the speakers 16 a 16 b and the additional speakers 18 a 18 b will therefore reach an attendee towards the rear of the audience area 4 at substantially the same time such that no reverb or echoing is noticeable owing to the mixed and equalised sounds being reproduced by multiple speaker systems throughout the venue some of which are configured to delay the signal before reproducing the sound interference may occur between the projected sounds waves in certain areas of the venue which deteriorates the quality of audible sound for example certain instruments and or vocalists may become indistinguishable not clearly audible or substantially inaudible within the overall sound in addition to this the acoustic qualities of the venue may vary according to the location within the venue and hence the equalisation of the sound may be disrupted for some audience members for example the bass notes may become overly emphasised as described above.