Dynacomp / Ross Compressor for bass with tone control

Started by Sweetalk, April 03, 2008, 08:59:28 AM

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Sweetalk

Hi!!!... I'm building a Dynacomp / Ross Compressor (not decided yet witch one use) for bass and want to put a tone control (something like the Big Muff tone control) to it. My question it's where to put it, at the begining, at the end?, in the middle of the circuit?

Thanks!

JDoyle

Yeah, put it at the end.

If put in front, you will most likely load down what ever effect comes before it. This is fixed with a buffer, however. But it will also add noise, which is NOT what you want to do right before a compressor.

If you put it in the middle, there really isn't a place to put it that won't end up screwing with the response of the compressor/full wave recitifier, which in the end would most likely make the response of the tone control (or more specificially, the frequency response of the entire compressor) act the exact OPPOSITE of what it is supposed to.

Put it at the end, though you may want to buffer it as the output pot of 50k is pretty low and will load it down.

Regards,

Jay Doyle

ayayay!

Are you planning to use a SWTC on it?  This interests me. 
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Sweetalk

I was thinking to put it in the end, in fact, I just tried it!. I put it before the 0.05uF cap and make the "bright" mod (0.015uF in parallel with the 10K resistor before the pot) and worked just fine, although I can be done better

Quote from: ayayay! on April 03, 2008, 11:30:17 AM
Are you planning to use a SWTC on it?  This interests me. 

SWTC?? I didn't get that....what does it means?

ayayay!

I'm sorry.  Stupidly Wonderful Tone Control.  I think it's in the DIY FAQ.  I know it's somewhere in here. 

So I'm confused.  Did you put it right before the output jack or right before the output pot?  Maybe you could post the schem you're using and point to it.   ;D
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dirk

Do you EQ before or after compression takes place?

It depends on what you want.
EQ after the compression stage, simply EQ's the compressed signal.
EQ before the compression stage changes the timbre of the signal to be compressed, so it will have an impact on how the compressor will work.
So its like EQing before or after distortion, both are usefull.
You could even only EQ the envelope section, this is called sidechain EQ.

Try them all and see what you like best.