Thread: Leds that beat with the subs

You can go and waste money on the Pilot Underglow light things that set off to like a snap of your fingers, or you can do what I did.

All you need is a little know-how of electronics. (dad being an electromechanical engineer I learned this easily)

You first need to calculate the max volts at hard pound to your sub from amplifier, I have 1k rms amp, so it is approx. 23-24v per channel (2ch).

Knowing this, you choose how many LED's you want, plug into an equation, and find out what size resistor you need, put a few in series (most likely) and then hook it all up to a channel from your amp, the more of a pound from amp to sub, the stronger the light will be.


Just how I did it. Hope it helps, if you want more information let me know.

make me a vu meter designed to run on a 4 V max signal.... KTHX.

Quite easy, would you actually like me to help you? haha

Like I said, all it is it usage of capacitors.

Also a video to the pulsing action that it created. http://www.youtube.com/watch?v=ZsZbJ...er_profilepage

Originally Posted by mousemonster1232

Also a video to the pulsing action that it created. YouTube - Hand-made LED box pulsing to music

love the video, how do get(make) one, and how much?

For the box, you can make one quite easily, and cheap. My whole set up came to about $15 at the max?

Would you be using an amp for power? If so, find out the RMS wattage and let me know and you can move from there.

Perhaps I can create a how-to as there are a few people that have already asked how to do the whole process. Maybe when I get some spare time later tonight. Keep an eye out for it.

Originally Posted by mousemonster1232

For the box, you can make one quite easily, and cheap. My whole set up came to about $15 at the max?

Would you be using an amp for power? If so, find out the RMS wattage and let me know and you can move from there.

yea i guess i would be, if my amp could handle it, its just a little 500w and 250RMS idk it that'll work because its so small and weak

That would work. LED's only need about 2V each for them to power. Go look in the how-to's I created and posted it.