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Pad on condenser mics


weetoonhunter

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You can just leave mic plugged in XLR input and select 'line'

This attenuates the signal, don't remember how much, same/similar to a 'pad' on other desks.

 

Yes, a quick check in the manual confirms that it's a -20dBu pad when you select "line". You have to go all the way to the schematic on p10 to find this out, though, it's not explained in the main section on the chanel strip.

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Whilst on the subject...

 

If you need to pad an o/p down to I/p on an amp you can use a simple voltage divider.

 

(I needed to take the o/p of a Nu-Mark CD player down to the input of a spare Kustom guitar amp for rehearsals (we made do with Mono of course)...two resistors worked a treat...still in use today as we found it was a lot easier than setting up the main amps.)

 

See here for calcs:

 

http://www.raltron.com/cust/tools/voltage_divider.asp

 

http://www.electronics2000.co.uk/calc/pote...-calculator.php

 

http://hyperphysics.phy-astr.gsu.edu/hbase...ric/voldiv.html

 

http://www.sengpielaudio.com/Calculations03.htm

 

www.communitypro.com/files/literature/.../PADS_CALC_TECH.pdf

 

You can stick the Rs anywhere convenient on the front end of the amp I/p, or as some folk do, cobble up a lead(s) and use that. I suppose you could build a whole range of leads with different value pads if you needed a "Get -out-of-a-hole-card" in an emergency...Pad at the receiving end of the lead.

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