Author Topic: what is this for?? (Read 4073 times)

atomicareprise · « **on:** December 28, 2008, 06:08:14 AM »

i'd like to know what are audio(+) and audio (-) for

and where to connect this??

sorry noob here..help me plz...

Nemesis · « **Reply #1 on:** December 28, 2008, 06:16:46 AM »

I think that diagram is wrong. Audio in is where the speaker is supposed to conect to, and where the speaker is connected to on that diagram is where the LED's are supposed to go.

atomicareprise · « **Reply #2 on:** December 28, 2008, 06:42:52 AM »

so what's the right way how to do it??

it really confuses me reading diagram

cuz i dont know which is which..help..

FaT3oYCG · « **Reply #3 on:** December 28, 2008, 07:04:01 AM »

there is nothing wrong with that diagram i dont think infact that is quite useful to me, the only thing that it may be missing is a capacitor, but from what i have read on some sites the amp doesnt need one unless you using 200 gain instead of the default 20.

the speaker is the speaker that gets the amplified sound, the audio in + and - are where you take the + and - from the existing speaker(s) and connect it to that, there is only a + output with the amped sound or whatever, you can connect speaker(s) and led(s) to that and then the - on the speaker or led's to the ground.

so i actually think that diagram is right

Alien_X · « **Reply #4 on:** December 28, 2008, 07:06:46 AM »

The diagram is right if it is to be used as a speaker amplifier, but not for a flashy flashy boo hisss mod.

Nemesis · « **Reply #5 on:** December 28, 2008, 07:09:42 AM »

Ah well i was assuming it was for the LED mod.

atomicareprise · « **Reply #6 on:** December 28, 2008, 07:50:23 AM »

well what im planning to do is to boost my sound volume and

wire some leds on it..

bustinthejustin · « **Reply #7 on:** December 28, 2008, 10:08:36 AM »

Well that diagram would work for a speaker mod, but I have no clue how to wire speakers AND leds to the same amp... Maybe wire in parallel, I have no clue.

rceckspurt13 · « **Reply #8 on:** December 28, 2008, 10:42:33 AM »

It's really quite simple to wire LEDs and a speaker to the same amp.

Here's what you do:

•First, remove the resistors from the "+ Audio in" and the "- Audio in" this will provide the requires voltage for the LEDs.
•Next, add a 100uf electrolitic Capacitor of at least 10 volts to the "+ Output" line that leads to the speaker. Make sure that the - side of the capacitor is facing the speaker. This will remove the distortion caused by the voltage output of the amp.
•Solder the LEDs in a + - + - (series) configuration and attach the + of the first led to the "+ Output" line without the capacitor. Attach the ground of the LEDs to the ground point for the amp.

Thats it.

Notes: attaching the LEDs and a speaker to the same amp will cause a slight ammoint of distortion in the speaker. It is almost undetectable though so don't worry.

Good luck.

atomicareprise · « **Reply #9 on:** December 28, 2008, 10:53:09 AM »

so i'll replace the resistors from audio in (+) and audio out (-) with 100 uf e-capacitor?

so i'll be using only 1one 100 uf e- capacitor to replace two resistors??

can you show a diagram of what you are saying if you don't mind??

i'm easily confused coz im a noob..thanks

rceckspurt13 · « **Reply #10 on:** December 28, 2008, 02:41:40 PM »

No you lose the resistors completely and run the audio straight into the amp. The capacitor goes on the output of the amp that goes to the speakers. Without the capacitor, you will get a loud buzzing out of the speakers. I'll get the diagram when I get a chance.

armis · « **Reply #11 on:** December 28, 2008, 07:01:14 PM »

so which one is correct...this one or lordnicos?

bustinthejustin · « **Reply #12 on:** December 28, 2008, 07:24:41 PM »

L0rdNic0's is for leds, this one is for an extra speaker. Both are correct, and are almost the same, except the output is different.

atomicareprise · « **Reply #13 on:** December 29, 2008, 05:41:08 AM »

i hope rceckspurt13 provide the diagram soon

that would be a big help for me to start my mod

rceckspurt13 · « **Reply #14 on:** December 29, 2008, 01:26:35 PM »

Ok Here is the diagram i promised:

i hope it helps. SOrry i could not get it sooner but my computer was acting up yesterday.

bustinthejustin · « **Reply #15 on:** December 29, 2008, 01:31:51 PM »

Question - how much output comes out though, if we were to calculate a resistance for the leds?

Alien_X · « **Reply #16 on:** December 29, 2008, 01:33:57 PM »

Why have you wired the leds in series?

PhenomenalDesigns · « **Reply #17 on:** December 29, 2008, 01:45:13 PM »

Depending on the colour, you might be able to get away with putting them in series (if you do, its better, since less wires)

If its red, yes, because their voltage is 2

If blue, white, green or any other bright colour, they will be very dim even without a resistor

rceckspurt13 · « **Reply #18 on:** December 29, 2008, 02:22:01 PM »

I only said to put them in series because they cause distortion to the speaker. I'm not sure how much it will cause if you put them in parallel.

atomicareprise · « **Reply #19 on:** December 31, 2008, 12:10:06 AM »

thanks rceckspurt13 for the images...

can i solder the 2 grounds at the same ground point??

atomicareprise · « **Reply #20 on:** December 31, 2008, 12:13:55 AM »

rceckspurt13,

follow up question ..

what do you recommend the appropriate

resistor for the leds in case if i need one??

thanks

rceckspurt13 · « **Reply #21 on:** December 31, 2008, 09:48:30 AM »

Yes you can connect the ground points. I just didn't draw the extra line to connect them.

You most likely won't even need a resistor since the LEDs are in series. But on the event that you need one, thats where you would put it. And the resistor value is going to depend on the color of the LEDs.

atomicareprise · « **Reply #22 on:** December 31, 2008, 07:52:01 PM »

i'm planning to use blue..

thanks rceckspurt13..

rceckspurt13 · « **Reply #23 on:** January 01, 2009, 02:10:27 AM »

Your welcome

And with blue LEDs, you shouldent even need a resistor. Also if the LEDs are to dim when they are hooked on series, then hook them in parallel. They shouldent cause too much more distortion.

atomicareprise · « **Reply #24 on:** January 01, 2009, 07:38:09 AM »

you're such a big help man..

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Author Topic: what is this for?? (Read 4073 times)