Mic level to speaker level (High Level)

Thread Starter

Josue Michel Savoie

Joined Apr 15, 2015
4
I am working on a Light Organ circuit designed to take Speaker level. I would like it to take Mic level. I was thinking a Transformer would do the trick. Any help or suggestions is appreciated. I would like something designed into the circuit itself rather than something external.
 

R!f@@

Joined Apr 2, 2009
9,919
Welcome to AAC.
You can use a Mic preamp to increase the input to a speaker level.
Then again anything designed to take a speaker level input will have a resistor divider network on the input to reduce the speaker level to a safe preamp level
 

bertus

Joined Apr 5, 2008
22,303
Hello,

Show us the circuit of the light organ.
Perhaps there can be things adapted to accept lower levels.

Bertus
 

Søren

Joined Sep 2, 2006
472
I am working on a Light Organ circuit designed to take Speaker level. I would like it to take Mic level. I was thinking a Transformer would do the trick. Any help or suggestions is appreciated. I would like something designed into the circuit itself rather than something external.
Your subject line seems to ask the opposite of what you want!?

Transformers are the classic way of doing it when hardwired, but I never liked that approach, as it interferes with the sound.
If you want stuff designed into your circuit, you sort of have to post your circuit ;)

My best suggestion is to use a mic as input device, that way you get the light to react to people clapping/stomping as well - makes for a more inclusive approach (I'm assuming you're gonna use it for parties and such).

If you only want the sound itself to manipulate the light, a line level feed from your amplifier would still be better than tampering with the speaker signal. Add a voltage divider if needed.
 

Thread Starter

Josue Michel Savoie

Joined Apr 15, 2015
4
A step up Transformer is what I am looking to do most likely

Yes as I said before I am trying to avoid an external amplifier

Seren already gave me the info I need actually!
 
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Søren

Joined Sep 2, 2006
472
Seren already gave me the info I need actually!
I don't think so!
I read your post as if you wanted to do a classic (seventies) hookup from speaker output to the light organ, which typically needs lower input amplitudes.
My bad for reading you wrong!

You may be able to use a microphone transformer, they are very expensive (although a low quality type may be found - don't ask me where though), but this is probably a very kludgy way of doing it.

You have been asked a couple of times to post a schematic, I'll ask as well and if your hesitance to do so is that you don't have it, at least supply as much info about it as you have, like make/model and some focused photos of it's circuit.

It's quite likely that what you have could be changed to take mic level, as there's likely a simple voltage divider (or even a transformer), in your existing input stage.
 

izon

Joined Mar 17, 2013
217
Sorry about reference to power amp on bottom of page, didn't realize different stuff shows up each time page loads. They do have 1 or 2 watt and larger small board power amps if you check it out...
 

Odiesdad

Joined Aug 7, 2015
8
Welcome to AAC.
You can use a Mic preamp to increase the input to a speaker level.
Then again anything designed to take a speaker level input will have a resistor divider network on the input to reduce the speaker level to a safe preamp level
Mike preamps do not drive to speaker level. . .
 
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