Audio Video San Diego (AVSD Inc.) in Carlsbad operates from El Camino Real under CSLB C-7 Low Voltage Systems license #991656, designing custom home theater, whole-house automation, and surveillance systems. Pre-wire infrastructure for new construction and retrofits runs Crestron, RTI, and Russound control platforms alongside Martin Logan in-wall speaker arrays, with high-voltage circuit requirements routed to Green Earth Electric for dedicated 20-amp lines powering amplification racks. The firm carries Sonos, Denon, Marantz, Samsung, and LG displays for residential installs while handling commercial digital signage, conference-room AV, and multi-zone music distribution for restaurants and government facilities across San Diego, Orange, and Riverside counties. Whole-house control integrations unify lighting, motorized shades, security cameras, and multi-room audio into a single touchscreen interface, complementing the appliance and fixture selections at Pacific Sales Kitchen & Home Carlsbad for coordinated smart-home builds. Reference-grade theater rooms spec 4K laser projection, Dolby Atmos overhead speaker arrays in 7.2.4 configurations, acoustically treated wall panels, and isolated-ground circuits feeding rack-mounted amplification equipment.