Signal Display

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Signal Display

Postby Nerdyrocker » Thu Jun 09, 2005 5:28 am

How does everyone go about knowing when the mic pre is overloading? Is there any kind of mofification that will let you know when you are pushing it too far? I do a lot of location work and it is not always the best monitoring environment so sometimes it is hard to listen close enough to tell if something is starting to go bad.

Has anyone added any LED's or types of meters to their kits?
"For me, to live is Christ and to die is gain."
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Postby Category 5 » Thu Jun 09, 2005 10:40 am

If you are running into AD converters, or even an average tape machine you will overload the input of your recorder LONG before you will overload the preamps. Keep an eye on the levels of your recording system and you will know all you need to know to prevent overload.

If you are driving another device from the preamps before the recording system, you will have to monitor the levels on that device to prevent overdriving "its'" input. ...but like I said, the SCA preamps have so much headroom I can't imagine too many situations you'd overload at the pre.

Shane
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Postby Nerdyrocker » Thu Jun 09, 2005 11:30 am

Good to know. Sometimes its nice to have a little overdrive to a pre. Can you do that but then just trim the output with the trim pot?
"For me, to live is Christ and to die is gain."
Nerdyrocker
 
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Joined: Tue Jun 07, 2005 4:32 am
Location: Richmond, VA

Postby Category 5 » Thu Jun 09, 2005 7:18 pm

With the N72 you can since the trim knop is really a full swing output fader (from 0 to full scale).

The A12 and J99 have 6dB trims instead of output faders, and without attenuation on the output of the pre it is more difficult to drive hte preamp into distortion without overloading the recorder's input.

Fortunately, a simpel H pad will do the trick, and it's easy enough to solder some resistors inside of a XLR cable to make this.

Shane
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