At the Hollywood Bowl, two vertical speaker columns flank the suspended center ring, which includes a short third speaker column in the middle front. (Lawrence K. Ho / Los Angeles Times)
The shorter middle speaker column at the Hollywood Bowl. (Lawrence K. Ho / Los Angeles Times)
Fred Vogler works in the sound booth during an L.A. Philharmonic performance July 27 of the operas “Cavalleria Rusticana” by Pietro Mascagni and “Pagliacci” by Ruggero Leoncavallo. (Ringo H.W. Chiu / For the Los Angeles Times)