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led to music? Answered

Ok... i have been looking into this for the past month tried to use a TIP31 transistor to make my led light strips flash to music in my car by using my sub amplifier as an audio out source...... and it would not work so i was wondering if you someone could help me out to make a box that would allow for audio in from my amplifier that would have a circuit that would perform the task of making my led light strips flash to my music. thanks. 

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You need to make an opamp comparator with a peak detector. Then any base line audio will flash the LEDs. You don't want to connect the circuit to the output of an amp. The 2 videos below will walk you though it all.



If mpilchfamily answered your question, do you think you could click on the blue button so that your question shows up as "answered" on the main page? ;-)