Santa Barbara, CA (July 9, 2013)—As part of the new Digital Cinema rear-projection system for the Granada Theatre at the Santa Barbara Center for the Performing Arts, seven Powersoft K Series amplifiers were installed to power five EAW loudspeakers.
Each K Series amplifier is equipped with KDSP digital signal processing and KAESOP networking cards.
AV integrator AMT Systems supplied and installed the new cinema audio equipment.
“We added EAW QX596i three-way, bi-amped boxes for left, center and right, and two EAW SB2001 subwoofers,” says Mike Shelton, Senior Systems Engineer, AMT Systems. “Because the new cinema system uses a Christie Digital Systems rear projector, the left and right channel speakers were flown to either side of the Stewart screen while the center channel speaker and dual subwoofers were suspended immediately above the screen.”
Two Powersoft K2 DSP+AESOP amplifiers power the passive coaxial high- and mid-frequency compression drivers in the three QX596i cabinets. Three K3 DSP+AESOP amps drive the four 12-inch low frequency speakers in each of the three boxes. Two K10 DSP+AESOP amps power the twin SB2001 dual-21-inch subwoofers, which each carry a low frequency effects (LFE) channel.
Kyle Ridenour of acoustical and audio-visual/IT consultancy McKay Conant & Hoover in Scottsdale, AZ, was the consultant on the project. NEP’s American Hi Definition division, located in Van Nuys, CA, supplied the Digital Cinema projector and screen.
“A Dolby Labs CP750 digital cinema processor is taking all the audio from the Doremi Labs ShowVault video server and decoding it out to the 5.1 channels,” continues Shelton. The LCR and LFE channels are distributed to the Powersoft amplifiers, while the left and right surround channels are sent to the theater’s previously installed Meyer Sound Constellation system.
“When we delivered the amps, I built a preset group that included all the EAW Greybox setting for every possible combination of speaker loads and installed them into each of the amps,” said Paul Hugo of Marshank Sales Co., Powersoft’s regional representative, based in Tarzana, CA. “When Mike installed the amps, he just went to the menu of presets and selected the appropriate one for each individual channel. And since every channel has every preset, there is redundancy built in should there ever be a failure.”