TOA provides paging and BGM for Paya Lebar Square
SINGAPORE: Systems integrator Tec Revox was recently awarded the contract to design and install a substantial TOA sound reinforcement system into a newly constructed 11-storey development adjacent to Paya Lebar MRT station.
Paya Lebar Square combines a U-shaped office block with a three-storey retail mall consisting of speciality shops, a supermarket and a large number of food and beverage outlets. Tec Revox and TOA Electronics have long been dining out in Singapore on the VX-2000 digital system manager system as it has become something of a staple diet for both new and old shopping mall/office developments. The system boasts safe, reliable and easy operation, and these have been the overriding factors leading general building and electrical and mechanical contractors to call upon Tec Revox to satisfy their paging and BGM requirements.
The VX-2000 system manager is an input matrix unit that functions as the main controller assigning input signals to four audio buses. In addition to controlling the audio signal routing and priorities, it also allows the input and output controls to be managed on a PC, where a log of all the recorded events and failures can be viewed. An EVC digital recorder can also playback the evidence. Interfaced to the VX-2000 is a VX-2000SF surveillance frame, serving as the output matrix section assigning the audio signals to 47 individual zones, including the basement levels from its four audio buses.
BGM is played through the system courtesy of Sherwood FM/AM tuners and Denon 5-CD players, which can be interrupted with general purpose announcements via the RM-200X microphone and its RM-200 extensions. However, the facility manager can override every separate PA system in the mall should an emergency evacuation announcement need to be made. Five TOA SS-2020 Source Selectors have been added to one of the four equipment racks in the fire command centre, allowing the facility managers to switch between BGM and announcements in any of the zones at the touch of a button.
The shopping mall is now graced with a ceiling speaker solution where 1,355 TOA PC-648R 5-inch models now provide an even dispersion of BGM. A total of 112 SC-615M horn speakers have been wall mounted in the car park, whilst a further 87 BS-633A box speakers adorn the fire escape staircases. Integrated with a resin panel and speaker frame, the PC-648R ceiling speaker features a spring clamp mechanism. ‘It weighs less than 500g, and can be easily mounted to the ceiling,’ said Jack Tay, Tec Revox’s operations manager. ‘The input impedance can also be easily changed by changing the tap position of the transformer, for which most have been tapped at a 3W setting.’ The entire speaker system is powered by five TOA PA500FH and five VP-2064 power amplifiers. Amperes AX3700 auto-fault and changeover units monitor and detect amplifier channel malfunctions, automatically assigning a standby amplifier channel to take over in such an instance.
Tec Revox pre-assembled the racks off site, before terminating the cabling in late 2014. ‘In terms of pricing, reliability and functionality, the VX-2000 gets a thumbs up in every aspect,’ explained Mr Tay.