Patent ID: 7643894

Claim:
A local area network (LAN) audio system comprising: a networked audio source node device connected to a plurality of network speaker nodes via a TCP/IP LAN network, wherein an individual network speaker node further comprises: a first network controller that controls the processing of the first digital audio signal to and from said LAN network, said first network controller further comprises an embedded controller with memory and which is programmed to function as a web server; a first network interface that couples said first network controller to said LAN network; a first audio format converter that couples to said first network controller and converts and formats the first digital audio signal, said first audio format converter is updated through said LAN network; a digital to analog converter (DAC) that couples to said first audio format converter and converts the first digital audio signal to the first analog audio signal; a pre-amplifier that couples to said DAC and adjusts and filters the first analog audio signal and an amplifier that couples to said pre-amplifier and amplifies the first analog audio signal, said pre-amplifier further comprises an electronic crossover for frequency division; and speaker sensors that couple to said pre-amplifier and provide feed back that enables internal auto adjustment by frequency separation to enhance speaker protection and performance and allow for sending control signals back to other devices in said LAN network; an internet interface connected to said network speaker nodes via said LAN network; a network control server connected to said network speaker nodes via said LAN network; and a legacy converter and controller connected to said LAN network, said legacy converter and controller connects one or more legacy sources and a legacy control network to said LAN network, said legacy converter and controller further comprises: a second network controller that controls the processing of the second digital audio signal to and from said LAN network, said second network controller further comprises an embedded controller with memory and which is programmed to function as a web server; a second network interface that couples said second network controller to said LAN network; a second audio format converter that couples to said second network controller and converts and formats the second digital audio signal and receives legacy digital audio from legacy sources, said second audio format converter is updated through said LAN network; an analog to digital converter (ADC) that couples to said second audio format converter and converts the legacy analog audio signal to the second digital audio signal; and a legacy controller that couples to said second network controller and controls and communicates with said legacy sources and or said legacy control network; a legacy audio network interface that couples said legacy sources to said legacy controller; and a legacy control network interface that couples said legacy control network to said legacy controller.