Making use of the manufacturer's newest release, DVA T12, dBTechnologies product manager and audio specialist, Salvioli explains the system's design. "We used three clusters each comprising ten T12 modules, flown from a crane at a height of 16m. Beneath these were a further two stacks of the DVA S20 subwoofers, six facing one way and six the other, to get the best possible low frequency coverage for the area. One stack of subwoofers was delayed by 4.5 milliseconds to compensate for the gap between the two stacks, which was easily adjusted by RDNet remote control.
"The starting line - the highest point of the track - was made up of two clusters of four T12s, each cluster coupled with four S20s. The difference in height between the lowest and highest points of the track was 150 metres, so it was hard to organise coverage for all the public, but using the three clusters at different angles turned out to be the perfect solution. "
Transmitting the audio signal between the three clusters and the control room was slick, using dBTechnologies wireless system comprising MS120 (directive transmitter antenna) and a PU920 (receiver). "We used two different radio frequencies rather than signal cables for the total distance of 350m, and two repeaters for safety. There weren't any drops in transmission though," says Salvioli.
Both the event organisers and dBTechnologies customer/rental company Bebo Service were extremely satisfied. Salvioli added conspiratorially, "They told me that previous races during the championship didn't sound as good as this one."
(Jim Evans)
