At Bicentennial Park near Silao, Mexico, a sun-drenched, open-air Mass celebrated by Pope Benedict the XVI gathered a sizable crowd that BBC News estimated to surpass 500,000 people. To ensure everybody could hear words and music clearly and to full effect, more than 375 Meyer Sound loudspeakers converged at the site—including 268 MILO line array loudspeakers, likely the most ever deployed for any single event.
The daunting challenge of audio system design was shouldered by Rodrigo López of Mexico City-based consulting firmZero Phase. His assignment was to provide uniform coverage across a vast, irregularly-shaped area—over a kilometer wide and a half kilometer deep—comprising uneven hillsides, sloped parking lots and open fields. To augment the main stage MILO arrays, López plotted a system of 40 delay towers laid out along 12 delay lines. Arrays on most towers were configured with five to eight MILO loudspeakers, with some delay lines deploying contingents of 30 M3D and 32 MICA line array loudspeakers.
Pressure was high at an event of this scale. "I had some worries about getting clean, isolated signals out to all the towers," he admits, "but from that point, I was confident the Meyer Sound systems would perform flawlessly. And even with very high afternoon temperatures, there were zero problems."
An all-Meyer Sound solution was the obvious choice for the event from the outset, López continues. "Meyer was one of only two makers with enough suitable loudspeakers available in Mexico, and I did not want to mix manufacturers. And only Meyer could also supply the very highest level of performance and technical support. So it was not hard to make that call."
The Meyer Sound roster also included 32 700-HP subwoofers, ten UPA-1P loudspeakers for stage foldback and various fills, six MSL-4 loudspeakers for in-fill, and a Galileo loudspeaker management system encompassing 24 Galileo 616 processors. Three SIM 3 audio analyzers were used for system tuning. The event was mixed on DiGiCo SD7 and SD10 consoles.
The flawless audio throughout the event was noted and appreciated by dignitaries in the front VIP section. "Apparently they'd had problems with sound the day before with another system," says López, "but when they first heard the pope speak, they turned around and gave us big smiles."
In addition to the papal homily, the day's program included music from a 70-piece orchestra and a 40-voice youth choir.
The Mass at Silao was produced by the event management team of Miriam Villalobos and Gabriel Berumen. Servicios de Audio e Iluminacion de México (SAIM) provided the largest contingent of loudspeakers along with logistical support and crew coordination. Other rental companies contributing loudspeakers were A.C.M.E., Audio Systems del Norte, Creatividad y Espectáculos, Equipos de Audio Video e Iluminación Profesional (ROA), MAAS Producciones, Mix Audiostudio, Py-Eey Producciones, and Sonorizaciones Jar. Additional technical support was provided by Meyer Sound staff from the Mexico office and the company's Berkeley, Calif. headquarters.