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Help with Possible Sennheiser 421 Problem

Discussion in 'Microphones' started by drumrob, Jun 20, 2013.

  1. drumrob

    drumrob Active Member

    Jun 2, 2004
    Eugene, Oregon
    Hi all and thanks in advance for your help!

    I just purchased a used Sennheiser 421-U5 off fleabay (I know, what can I say?). It works, but it sounds like it might not be 100% ok. I have a little bit of experience with other 421s and know that they take a fair amount of gain normally, but this one seems to need even a little more and then the sound is a bit thin and brittle on the top. I've compared it to a 421-U4 we have at work and it definitely sounds thinner than that one.

    So, first any ideas on simple fixes - cleaning, easy way to open and adjust something, etc.? Secondly, what's the deal on repairing these? My other option of course, is to try to return it to the seller, which I may consider.

    Again, thanks for the help!


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