Installation Background Speaker System. 4 Subs. 8 Wall Mount Column Speakers. All Cables and Brackets Included. A powerful background installation audio system for larger venues such as pubs- bars- restaurants- gyms- commercial outlets and more. This complete audio system includes 8 column array high frequency speakers- 2 passive subs- 2 active subs- 8 speaker brackets- 2 XLR cables and 10 speakon cables. All that is required is the connection of a suitable mixer or music player! The speakers are wall-mountable while the 4 subwoofers can be installed away from sight if desired. Two of the subwoofers are active and these power the two passive subwoofers- each then powering 4 line array columns. Wiring is straightforward; Connect the passive sub to the active with the short 4 core speakon cable provided- then daisy chain four of the line arrays to the passive sub with the supplied 2 core speaker cables. The installer can use the supplied iLINE box to connect the system to a computer- to externally set up the sub woofers DSP- with control over- equalisation- delay- gain- crossover point and compressor. This is particularly useful for improving the sound quality. The output of this system is immense- it not only sounds great for background music but you can also turn it up a bit & thanks to the included subs- you even get a good amount of bass compared to other background systems on the market. The speakers are available in black or white- so the system can be chosen to suit how the room is decorated.. column speaker-Installation PA-Background PA-Background Music System