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Beautiful, flat receive audio passband performance

Barry N1EU
Barry N1EU Member ✭✭
edited June 2020 in SmartSDR for Windows
Over the years, I've looked at A LOT of receive audio passbands, but nothing has come close in terms of ruler flatness and bass/treble extension to my 6500.  For your enjoyment, the 6500 USB receive audio passband at 4KHz bandwidth: (click on the image below to see it full size)


image

73, Barry N1EU

Comments

  • Jim Gilliam
    Jim Gilliam Member ✭✭
    edited June 2020

    I have a Sonos audio system set up in the house and pipe the output of my 6500 to all the units in every room in the house. The audio is so beautiful, I have to periodically get treated for goose bumps.

    Jim, K6QE

  • Richard McClelland, AA5S
    Richard McClelland, AA5S Member ✭✭
    edited February 2016
    I'm sure the XYL appreciates that :-)
  • Jim Gilliam
    Jim Gilliam Member ✭✭
    edited February 2016
    Yes, she doesn't want my chronic problem of goose bumps to persist.
  • Gerald-K5SDR
    Gerald-K5SDR FlexRadio Employee ✭✭
    edited April 2019
    Thanks for the complement, Barry.  

    In case you are interested, this is what the two-tone, in-band IMD and harmonic distortion looks like on an audio spectrum analyzer.

    image

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