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EQ settings / mic profile for Shure SM7B

SM6YEC
SM6YEC Member ✭✭
edited August 2025 in Peripherals & Station Integration
Hi! Today I received my first FlexRadio 8400. What a station :-)

I’m wondering which RX EQ settings I should choose for a Shure SM7B microphone to get the best sound for DX chasing. In the default profile for dynamic microphones, the EQ is quite flat and seems more suited for rag chewing. I’d appreciate recommendations. I’m using a preamp with the microphone, so no adjustments to the EQ settings need to account for that. Also, when should you enable Mic Bias and Boost?

73 Mattias SM6YEC
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Comments

  • John KB4DU
    John KB4DU Member ✭✭✭✭

    To start with the simple ones, mic bias is on for electret mike capsules and off for dynamic mikes. Boost is on or off to get the needed drive level for the radio.
    Rx Eq is for the receive operation and adjusted to suit operator preference. Tx Eq is for transmitter operation with a microphone. There is a variety of ideas on adjusting this Eq. Usually for DX type operations, POTA, etc. generally cut below 300 and above 3000. General rule is cut before boost.

  • SM6YEC
    SM6YEC Member ✭✭
    Thanks John for taking the time to reply, much appreciated.
    Okay, QSL! Are there any RX EQ settings for dynamic microphones like the SM7B that you would recommend?
  • KD0RC
    KD0RC Member, Super Elmer Moderator

    Hi Mattias, there are no "universal" EQ settings. They are totally dependent on your voice and how you want it to sound over the air.

    Ken, NM9P has some excellent videos on YouTube about using Full Duplex (FDX) to adjust your TX EQ. Take a look at Ken's videos and you will be able to get your audio just right.

  • SM6YEC
    SM6YEC Member ✭✭
    Thanks Len!
    Thanks for the tip! I’ll check out Ken, NM9P’s YouTube videos.

    73 Mattias SM6YEC
  • Ken Wells
    Ken Wells Community Manager admin

    Here is a good article that also has links to other articles and videos.

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