Vegas, NV – Built in 1963, the
Guardian Angel Cathedral is the home church for the Roman Catholic Diocese of
Las Vegas. The cathedral serves local families and Las Vegas tourists with its
daily masses and other services. Its attractive “A-frame” design features
beautiful stained glass windows and polished tile floors. However, combined
with a 66-foot height, these features result in a high reverberation time which
benefits the choir and organ but detracts from speech intelligibility.
The cathedral’s older sound system was unable to provide acceptable voice
quality in this reverberant environment. Thus, in 2015, Guardian Angel
contacted Steve Keating of Mission Electronics in Las Vegas to analyze its
system and recommend a course of action. Keating tested the existing system and
found that the sound was muffled and the intelligibility was poor when the
sanctuary was empty and even when it was full of people during a mass.
Rather than simply repair the old system and to keep costs down, Keating
recommended a new system using Community ENTASYS ENT212 column loudspeakers
distributed along the cathedral walls.
Guardian Angel’s new system consists of two Community ENT212s on each side of
the sanctuary and one on each side of the balcony for a total of six columns.
The loudspeakers are progressively delayed to synchronize arrival times
throughout the sanctuary. Keating reused the cathedral’s existing under-balcony
ceiling loudspeakers and powered the system with Crown CDI amplifiers.
A Behringer X32 RACK mixer provides auto-mixing capability allowing hands-free
operation for most services and a Behringer DEQ2496 DSP provides delay and
system equalization. The cathedral has four wireless microphones for clergy
use, a pair of wired microphones on the lector and cantor podiums and a Denon
media player with USB input for weddings and other services. A floor-mounted
microphone input was repurposed as an audio output for videographers.
Keating says the new system’s speech quality is clear and coverage is uniform
throughout the sanctuary. A former skeptic told him, “the sound is great” and
the head usher commented, “there’s a night and day difference; we can go
anywhere in the church now and understand!"