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  1. C

    superstar dm-452 mic

    I replaced the battery today day and I’m still getting a squeal. I opened up the back of the mic and see the resistors you mentioned. Can these be adjusted and how? Thanks! I’m thinking I may have to send the mic back in if this doesn’t work.
  2. C

    superstar dm-452 mic

    Thanks for you're reply i will try that and let y'all know how it works!
  3. C

    superstar dm-452 mic

    Thanks for the replies y'all. My radio is a cobra 25ltd classic with no modifications done to it. I bought the microphone new off of walcottradio.com and haven't modified it in any manner, and according to the description it works with "cobra 25, 29, and newer 148 models".
  4. C

    superstar dm-452 mic

    I just recently bought a superstar dm-452 mic for my cobra radio and all its doing is sqealing when i key up the mic. I've tried adjusting the rf gain all the way up and down and no matter which way i adjust it it squeals when i key up the mic. I use this setup in my hunting truck. We use cb...
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