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E-MU 1820/1820M HELP!

Discussion in 'Recording' started by Tremulant, Nov 14, 2009.

  1. Tremulant

    Tremulant Guest

    I'm recording drum tracks over the next few weeks. It used to work fine, now one of my condenser mics likes to dip in power while recording. For example, the right comes through just fine with an even frequency, the left comes through, but the frequency drops in size/volume for a few seconds, then returns.

    I have an EMU 1820 interface with all 8 inputs running ASIO to Audition 3. The overheads are running off of the on board phantom power. I tried switching XLRs as well as reversing the inputs and the problem followed the mic so It's not the interface or cables as far as I can tell. I also hooked up a tiny preamp with phantom power and that seemed to give me two even frequencies, however, even though they were recording as low as -9DBmax, and without visible clipping, I heard audible clippage.

    Can anyone give me direction? Why is the mic cutting out and/or why is there audible clipping when none visible?
  2. natural

    natural Active Member

    Jul 21, 2006
    I had a problem for awhile like that.
    One of the switches (the pad switch) was a little iffy.
    A little too much vibration in the air caused it to engage for a few seconds.
    Replaced the switch and life was happy again.
    But it could be anything really. A cold solder joint at the XLR connection inside the mic, dirt on the diaphragm, anything.
  3. AudioGaff

    AudioGaff Distinguished Member

    Feb 23, 2001
    Silicon Valley
    White it is possible there is an issues with your mic, the caps of the phantom power circuit are likely going bad. This is known on many 1820/1820, AudioDocks. Obtain an external phantom power supply and turn off the +48 on the AudioDock.

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