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Signal Combiner for Audio Crossover Tests

Status: Proposal
July 31, 2013
This little circuit combines up to three outputs of an active or passive crossover. The phase of one channel can be inverted. With a scope or a headphone you can check out the amplitude and group delay effects of the crossover and the speakers. The input can be configured to be ac or dc coupled, fixed or variable gain. On board power regulators and power LEDs included. The schematic is done in EAGLE, the layout is ongoing.
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