adding LEDS to home speakers

[Dusty_Ranger]

so im adding LEDS to my home system and the volume has to be up sooooo loud for the LEDS to kick on, is the and piece of circutry that will let them turn on with lower volume? like a capaciter or a resistor or????

 

[Dusty_Ranger]

bump for help

 

[Boghog1]

http://www.instructables.com/id/Dot-It-LED-Speaker-Lights/

 

[Dusty_Ranger]

no there single l.e.d's from wal mart mounted in the housing. 1 l.e.d per speaker, i need the l.e.d to light a lower speaker volume on the bass frequencies, the frequncies arent as important as the l.e.ds lighting up at lower volume

 

[Dusty_Ranger]

the satalite speakers say 4 ohm's and the sub says 8 ohm's, the l.e.d i put in the sub works good and at lower volume so maybe i need a resistor with a different ohm range?

 

[Boghog1]

no idea ohms law is I=V/R or V=IR or R=V/I
I is current in amps
R is Resistance in ohms
V is Volts

you can play with that and should be able to figure it out

this may help
Watts = Amps x Volts
Watts / Amps = Volts
Watts / Volts = Amps

 

[feellnfroggy]

Your leds arent lighting from teh general volume. Its the bass power that allows them to kick on. If you have a sub-output and dont use your bass, then wire tehm directly to the bass and they will flassh better with the volume lower. If you are using your bass, then maybe having an EQ wired inline would allow you control the lights seperately.

 

[cody93]

leds need a couple of volts to light up, espically the blue/green ones
red ones can start as low as 1.1volts. bass would help too

 

[Dusty_Ranger]

well im wiring them into the satalite speaker so im lost i got a bag of resistors here grrrri just dont know

 

[feellnfroggy]

Dont wire to the sat speakers, they are only hi's and mids and dont have enough output to really burn an led. Resistors are exactly that, they resist, essentially slowing the power through that particular wire. Try hooking the leds to the wire for your bass unit and ditch the resistors. they wont be needed. I took an led brake light and wire it direct to my speakers in my old mustang and they lit when the bass was hittin. I turned down thebass with the eq and nothing, not enough juice without being earsplitting loud, give it a shot and see what you get.

 

[4x4junkie]

You need a minimum amount of resistance to keep the LEDs from burning out (usually around 220-1000 ohms depending on the power of the amp), but they won't make the LED turn on any sooner. You need more voltage for that. Only way to get more volts is to turn up the volume.


Something that MIGHT work however (I have NOT tried this, so take it with a grain of salt) is to put a 1.5 volt battery cell inline with the LED and then connect it to the speaker. The battery will give it a bit of a "bias" voltage which will allow for less voltage coming from the speaker circuit to turn the LED on.

 

[feellnfroggy]

That is an idea I have heard of but totally slipped my mind til you mentioned it.


Also Ohms is R=v/i There is a diagram for this its a circle divided in thirds which shows all the formulai.

 

[MountainMike]

Also Ohms is R=v/i There is a diagram for this its a circle divided in thirds which shows all the formulai.

This one: