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How do i make sound activated LEDs 70watt speaker 120v
ok, so i talk to best buy and what they said is that theoreticaly it would work to just take the negitive and positive leads, connect resistors and LEDs... good to go, but without a series of switchs, when i crank the volume it would blow the resistors and leds. the guy i talked to said hes done it and it would be too hard to do as a one man job, but obviously it works for some people online without needing all the switches, so what will work for me. i calculated the max voltage for my speaker system is 120 volts, so if i resisted that much, wouldnt it still work, if the max is 120, turning the volume up wouldnt put it past 120 volts. so why would it blow? radio shack advised me to go to a car sterio installer and see what they say. one thing geek squad mention is that one of them a while back bought some sound activated leds from NewEgg that plug directly into the sound card audio out and are like a third party device that just bypasses the audio but reads the signal and plays the leds to the tune. that might be cool if anyone could help me try to find. or if anyone knows enough about the speaker modding im trying to do to give me some clear cut directions on how to do it. i know these things are really hard somtimes to do because they are so individualized but accentually what i need is for someone to make me a blue print of sort. i need clear cut verry defined reasoning behind why things are done a certain way. what they are protecting me against. and how it would turn out if i follow step by step. i hate when people are vague, it leads to screw ups so. if you think you can help, thank you so much.