Sound companies that have recently taken delivery of Yamaha PM-1D Digital Audio Mixing Systems include: Audio West of Burbank, CA; MD/Clair Brothers and Spectrum Sound of Nashville; Hi-Tech Audio Systems and Ultra Sound/Pro Media of San Francisco; and PRG ProMix, NYC. New York City's Carnegie Hall has also installed a Yamaha PM-1D in the renovated 2,800-seat Isaac Stern Hall…Seattle Symphony's Benaroya Hall has taken delivery of a new JBL Custom Shop speech reinforcement system, which was installed by Capital Communications. The center cluster system features an unusually slim profile — only three feet deep — and moves out of sight for acoustic events. The Aerial Theater in Houston, a Clear Channel venue, has revamped its sound system. The configuration now includes JBL's VerTec VT4889s and Custom Shop loudspeakers, dbx DriveRack units and Crown amps… Sound Central, a Superior, Wisconsin sound rental company, has purchased a NEXO Alpha System as its primary tour rig. Sound Central provides production support for conventions, music tours, theater, outdoor festivals and corporate events throughout the northern Midwest, and is the first production company north of Chicago to offer the NEXO Alpha system. The company's new NEXO inventory consists of four S2 sub-bass units, 10 B1s and six M3 cabinets, two NX241 digital controllers and a Crossbow flying system…The Alliance Theater Company, the South's largest regional theater, has purchased an InnovaSon Compact Live console for its 800-seat Alliance Stage. Resident sound designer Clay Benning revamped the house sound system, adding six BSS SoundWeb 9088s to accept the digital LCR outputs from the InnovaSon Compact. Other system components include Sennheiser SK 50/EM 3032 wireless microphones, Crown amplifiers and Meyer loudspeakers.