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Old 3rd March 2011, 03:55 PM   #1
rifky is offline rifky  Indonesia
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Question combine stereo input for TDA 7294 single chips

i have problem here.

i have stereo input and single chip TDA 7294, how to combine stereo input for my chip amp????
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Old 5th March 2011, 06:41 AM   #2
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Old 6th March 2011, 12:49 AM   #3
Minion is offline Minion  Canada
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Old 6th March 2011, 01:05 AM   #4
sregor is offline sregor  United States
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What's the source and what's the purpose. Usually can combine signals with a simple resistor matrix (each signal connects to a resistor which are joined together with another resistor to ground - the point where they come together is a mono signal. Drawback is if the first two resistors are too small - can affect the stereo separation (if it is still important) Second drawback would be lower signal level - but that is easy to adjust for. BTW, this is the most common method with most subwoofer amps. YMMV.
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