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Hello, impedance question.


H 2 the eigel

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Posted

I was thinking of adding LED lights that would pulse to the beat. To do this I was going to connect the positive on the light to the positive speaker out on the amp, and of course negative to negative. So I ask you guys will adding 8 or so LEDs change the impedance load on the amp.

AMP = zx750.1

impedance right now is 2ohms

If you guys need any more information just ask. :hi:

Posted

It will. You might want to get a seperate amp to run the LEDs off of. I've always used a small amp (I have an old, old 100 watt amp that I'm gonna use on my next setup).

But you have to use the proper resistor.

My comp setup (Not bad for what it is):

HP Compaq Presario V6120US laptop with:

15.4" widescreen

AMD Turion 64 X2 1.6GHz processor

2x1GB stick DDR2 SDRAM (667 Mhz)

Seagate Momentus 500GB SATA HDD

128MB shared video memory

Windows 7 Home Premium 64 bit

12 cell Lithium Ion battery (actual battery usage time: 6 hours)

What it does:

635670364.png4532707.png

On a USB 2.0 Wireless card

Posted

I'll need more info. I'll need to know what amplifier you plan on using and a link to the manufacturer's page for that amp. Then I need a link to the site where you bought the LEDs from. If you bought them in a store, I will need to know the voltage and amperage of the LED.

My comp setup (Not bad for what it is):

HP Compaq Presario V6120US laptop with:

15.4" widescreen

AMD Turion 64 X2 1.6GHz processor

2x1GB stick DDR2 SDRAM (667 Mhz)

Seagate Momentus 500GB SATA HDD

128MB shared video memory

Windows 7 Home Premium 64 bit

12 cell Lithium Ion battery (actual battery usage time: 6 hours)

What it does:

635670364.png4532707.png

On a USB 2.0 Wireless card

Posted

Knowing I must put more money (that I do not have) for another amp, I do not think I am going to do the lights any longer. Thank you for your time and for answering my question!! I hope you have a good day.

Posted
Knowing I must put more money (that I do not have) for another amp, I do not think I am going to do the lights any longer. Thank you for your time and for answering my question!! I hope you have a good day.

Your welcome. I know how it is wanting to have some lights flash to the music. But trust me when I say you need a seperate amplifier. But you don't need much, most LEDs only need .1 watts each, so the smallest amp you can find would work.

My comp setup (Not bad for what it is):

HP Compaq Presario V6120US laptop with:

15.4" widescreen

AMD Turion 64 X2 1.6GHz processor

2x1GB stick DDR2 SDRAM (667 Mhz)

Seagate Momentus 500GB SATA HDD

128MB shared video memory

Windows 7 Home Premium 64 bit

12 cell Lithium Ion battery (actual battery usage time: 6 hours)

What it does:

635670364.png4532707.png

On a USB 2.0 Wireless card

Posted

Uh, wut.

Running an LED off the output of an amp... you know LEDs only need like 4v to get going, and that's 4VDC, you're probably going to feed them at least 10vac from even a piddly little amp, enjoy your popped LEDs and fucked amp.

Get something sound activated and run the LEDs off that...

goodgrammarbc7.gif

10.x volts fo' life!

Posted

yea, just got to advanced auto parts. they have a music interface for 20 or 30 bucks... lets you adjust the sensitivity of it and you can put a tone of lights on it.

but i dont thing you can just plug a dc led into and ac source.. maybe if you threw in some diodes it might work,, but i forgot all that stuff from my electronics classes

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