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Chip Amps Amplifiers based on integrated circuits

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Old 16th December 2011, 01:45 PM   #1
pra3718 is offline pra3718  India
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Default Soundbar Filter / Crossover

I read following thread which has picture file attached on 2nd post. You may find input LS & L is bridged/mixed in CIRCLE. so what designated this CIRCLE? Is this is a Mixer ? Or anybody has the schematic for this concept. Is it possible to make this all with preamp ?

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Old 18th December 2011, 12:04 AM   #2
PRR is offline PRR  United States
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> bridged/mixed in CIRCLE. so what designated this CIRCLE? Is this is a Mixer ?

The symbol is a summing junction or summer.

In this case, implementation is two equal resistors.
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