The synchronised package of two small and two large machines has proved popular with promoters as it offers fuel saving and greater redundancy than a traditional two-engine set up, says Tower. Typically only one small machine is needed for the fit-up period or night running, this can be synchronised with its mate or left running/standby, with the large machines not commissioned until rehearsals/showtime.
All four machines can be synchronised together to give 600kVA. So far, Rod Stewart and JLS have had this setup, with Simple Minds and Boyzone coming up.
Tower's Pete Donald comments: "It's a fantastic set up as it allows us to shoe-horn machines into tight spaces where larger machines wouldn't fit and not have large machines running with tiny loads. All the engines have long-running tanks so no extra fuel need to be carried either. It's a very clever system that offers real benefits and fits onto a single trailer!"
(Jim Evans)