Become a Site Supporter and Never see Ads again!

Author Topic: Line attenuator - where in signal path?  (Read 1573 times)

0 Members and 1 Guest are viewing this topic.

Offline yates7592

  • Trade Count: (12)
  • Taperssection Member
  • ***
  • Posts: 692
  • Gender: Male
Line attenuator - where in signal path?
« on: February 01, 2014, 10:52:13 AM »
I have used a -20dB line attenuator pad going into an R-26 previously. The R-26 was providing the P48 and the pad was fitted inbetween the xlr-out of the mics and xlr-in of the R-26. If I now use a recorder (say M10) with no P48, and use an external pre or XLR-1 with P48, does the pad now go between the mics-out and pre/xlr-1-in, or does it go between the pre/xlr-1-out and the M10???

More simply:

mics > -20dB > P48 (pre/xlr-1) > m10

or

mics > P48 (pre/xlr-1) > -20dB > m10


I'm sure this is an easy one for those who've used one before, but its outside my comfort zone at present.
« Last Edit: February 01, 2014, 11:27:26 AM by yates7592 »

Offline yates7592

  • Trade Count: (12)
  • Taperssection Member
  • ***
  • Posts: 692
  • Gender: Male
Re: Line attenuator - where in signal path?
« Reply #1 on: February 01, 2014, 12:32:17 PM »
Thanks Jon, I was kind of hoping that would be the case.

Offline DSatz

  • Site Supporter
  • Trade Count: (35)
  • Needs to get out more...
  • *
  • Posts: 2880
  • Gender: Male
Re: Line attenuator - where in signal path?
« Reply #2 on: February 01, 2014, 12:50:18 PM »
And the second principle is, put the attenuator as "late" in the signal flow as you can while still protecting the input that you need to protect. That way, the signal in the wires leading up to that point will be unattenuated, thus increasing its immunity to interference (hum, buzz, RFI, cell phone/Blackberry noise, etc.).

So, for example, if you're padding down the inputs to a recorder, put the pads at the recorder's end of the cables--not at the outputs of the device that's driving the recorder's inputs.

--best regards
music > microphones > a recorder of some sort

 

RSS | Mobile
Page created in 0.079 seconds with 44 queries.
© 2002-2020 Taperssection.com
Powered by SMF