1/4" Jack VS XLR

  • Thread starter Thread starter cwailit
  • Start date Start date
Dogbreath said:
and that's because of the way a 1/4 inch is? Regardless of TS or TRS?

also good to know.

Thanks man...:drunk:
Click to expand...

well ...... it's not because that's the way a 1/4 is ...... they could run it thru the pre. But in the vast majority of mixers it doesn't because it's meant for line signals.
It's just a design choice.
 
suprstar said:
I don't know that that's always the case. I stated that here a few years ago and was corrected by several of the regulars. I was told on a lot of mixers, if it's a channel that has a pre and a line-in, they just attenuate the line-in, and it still goes thru the pre. That's why the gain pot adjusts the input level. On 'stereo channels' where there's ONLY the line-in's, there's no gain control.
Click to expand...
That misses the point. Even if the 1/4 goes through the preamp, it is still attenuated and meant to be a line input. The mic input would be the place to plug the mic into.

the bottom line is tha the 57 ins't working the way it's supposed to because he isn't plugging it into the mic input.
 
Here's the block diagram....
http://www.behringer.dk/EN/downloads/pdf/1204FX_P0554_V2_YY.pdf
It appears that they pad down the signal from the line in and then run it through the mic preamp, not a good idea since it makes whatever is coming in the line input noisier, but then, that's probably what they had to do to hit a price point. So, if you plug a mic into the line in it is padded down before hitting the preamp (making it noisier) and noise is added again when you boost the preamp enough to make up for padding down the signal and also making up for the initial low (mic level) coming in. All this would make the mic very noisy (hissy) when using the line in. It's NEVER a good idea to run a mic into a line input.
 
Maybe this will help:
 

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