Acoustic device for custom installation

Adapter connectable between audio amplifier and transmitter...

Apparatus for fault detection for parallelly transmitted...

Audio communication system for a life safety network

Audio distribution system

Audio distribution system

Audio distribution system having programmable zoning features

Audio distribution system having programmable zoning features

Audio distribution system with controllable volume override

Audio interface device and method

Audio mixing console with control element position storage

Audio signal delivery management system, audio signal...

Audio signal processing apparatus

Automated voice message system and method

Automatically reconfigurable stereo speaker system