Loudspeaker Controllers

I've done a number of control systems for high-end audio loudspeakers, which perform the following functions:

One subwoofer also has a front panel display and an infrared remote control, allowing the user to select a gain setting, and choose from preset room equalizations or a custom 7-band equalizer. A "hidden" service function allows a tehnician to perform diagnostic function and update firmware.

Another speaker without user controls can peform firmware and DSP updates via the audio input, with feedback from the LED power indicator.

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Copyright 2013 Dave Dunfield.