FOH Online – Sep. 2011

LOS ANGELES – The nine-hour L.A Rising festival drew more than 60,000 to the Los Angeles Coliseum for a rare appearance by a reunited Rage Against the Machine performing along with Muse, Rise Against, Lauryn Hill, Immortal Technique and El Gran Silencio.

The concert was widely noted for the intensity of the performances, delivered via more than 250 Harman JBL VerTec line array loudspeakers and 152 Crown Audio I-Tech HD Series power amplifiers.

Sound Image of Escondido, California designed and deployed the sound system under the direction of Mike Sprague, Director of Touring. The system included 132 JBL VerTec VT4889 fullsize line array elements and 110 VT4880 fullsize arrayable subwoofers for the main system, and for the three delay towers, along with eight VT4889 speakers and eight VT4880 subwoofers used for stage monitoring and side fill.

A setup this large might prove daunting for many rental sound contractors, but Sprague took it in stride. “We really didn’t face any major acoustical challenges. We just put in enough PA so that all 60,000 people were covered with volume and clarity. True, we wound up having to put in a lot of speakers to accomplish that!

“Believe it or not, we didn’t face any major challenges in setting up the system either,” Sprague continued. “Getting the delay towers in the right position was a bit of a task, and getting enough AC power from the generators to run the system wasn’t easy. Ultimately we got what we needed by using 400 amps of 3-phase power for each side of the stage and 200 amps of 3-phase for the delay towers.