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Picture of Creating An Audio-Reactive LED Circuit
These instructions will help you learn how to construct an audio-reactive LED circuit.  Familiarity with electronics and soldering is strongly recommended  Barring any circuit errors, the task should take no more than an hour. This circuit can easily be expanded and integrated into other projects to create visually impressive effects.
 

Step 1: Safety Precautions

Caution should always be exercised when working with electric currents.  Currents can cause burns or damage to vital organs.  Currents as small as 10 mA can be damaging or even fatal.  Power sources should be disconnected when modifying a circuit, and remember to always use common sense when working with electronics.
 
Daddio24681 year ago

Would love to see the instructable for the filtered circuit also. Also the one for the newest version which has another string of LED's for the midband frequency range.

Nice work and your guides are very easy to follow.

Please upload a instructable for the above circuit. I mean for the filtered one that has different LEDs for BASS and TREBLE. It will of great help. I couldn't understand your schematic. Please ...!!!

How did the RCA connectors get from female to male?