The COVID-19 period has been difficult on everyone but especially the events industry. We thought we might as well make the most of it and bring all of our Bose Showmatch Carts home for a good cleaning. Our boys had lots of fun filming the process for you.
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In 2018, we built our carts in-house for the Sydney Football Club and their Home Games at Leichhardt Oval and Netstrata Jubilee Stadium. Each Bose 'Cart' is designed to house an array of Showmatch cabinets flanked by two SMS118 18" subwoofers. Under the rear sub cabinet is an amplifier sleeve that houses a Linea Research 44M20 four channel amplifier and a network switch. Under the front sub is the steering axle, while the space behind the array cabinets houses a flip up panel concealing the mains and signal connector panels.
The ‘Carts’ leverage ShowMatch’s unique Delta-Q array technology. In its standard configuration each ‘Cart’ array comprises a SM20 20degree, SM10 10 degree and an SM5 5-degree cabinet. As the vertical coverage decreases the output of each cabinet increases, providing a natural gradient of SPL without having to shade the power applied to each box. Coupled with the selection of wave guides the ShowMatch system is able to provide a high-power full range solution with exceptionally even coverage both vertically and horizontally. Array cabinets and subs can be added to the ‘Carts’ to achieve appropriate vertical coverage and sound pressure levels for entertainment applications.
Mechanically the Bose ‘Carts’ ride on four turf tyres and feature a front retractable draw bar and a concealed rear hitch enabling the units to be towed in a line. These are towed into place behind a Kubota diesel UTV which forms part of The P.A. People ‘Cart’ package. Each unit is 2400 long, 800mm wide and sits at around 900mm high, and comes complete with a full set of 75mm sports grade padding to the rear and ends, to reduce the risk of player injury should they inadvertently come in contact with the system.
The system has been matched with amplification from Linea Research in the UK. Celebrating fifteen years in business, the team from Linea have developed an amplification platform second to none. Both of The P.A. People’s ShowMatch systems are powered by Dante enabled Linea Research 44M20 amplifiers, each capable of developing 20kW of power over four channels in a 2ru high chassis. As you would expect, the amps feature a comprehensive DSP based signal processing and management chain and their own control application.
The P.A. People have again opted for an entirely Dante based signal distribution system for the Cart system. The system is in and out of the venue every match so being able to connect a single loom for signal distribution and power is great. Each unit is interconnected with a loom comprising a 32A Ceeform mains cable and a single mode OpticalCon four core fibre cable. Optical interconnection was chosen for electrical safety, eliminating the possibility of earth loops from different mains sources, as well as providing a second fibre path that can be utilised for video or comms applications.
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