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  1. Paul WB5AGF

    audioengine D1 USB DAC misses first couple of Win7 test tones

    Someday I'll be forced to move off Windows 7 but ..... (until then) I've got a peculiarity that's bothering me ... (background) I've been using an audioengine D1 USB for audio off my PC (an old HP z600) for several years and it works fine (once I ran the USB cable to a powered hub before...
  2. Paul WB5AGF

    Headphone Driver (speaker) Covers - How To Minimize Acoustic Diffraction ?

    Starting last (2022) summer I began watching eBay for used Sony headphones in the 'MDR' family. I've had an MDR-V6 and MDR-7506 for years (most people consider them almost identical except for the 7506 being slightly 'brighter') and wanted to see how some of the other Sony headphones (in...
  3. Paul WB5AGF

    Fixing Broken Massdrop x Focal Elex Headphones

    Excellent technical photography (re> the original postings in this thread). What lens were you using for the extreme close-ups ? - Paul (AKA WB5AGF ... my Amateur Radio Call)
  4. Paul WB5AGF

    Solderable 'Unimatch' Adapter Found On eBay

    I recently purchased a pair of Sony MDR-1A Headphones. I was puzzled at the poorly documented cable interface. (How complicated can it be to connect to a couple of 'drivers' ?) It looks like Sony thinks that its customer base is technically incompetent and that no one listens to music off a...
  5. Paul WB5AGF

    New - Austrian Audio Hi-X65

    Within the past day I've gotten the Austrian Audio Hi-X65 Headphones after a friend made favorable comments about the company. (I was a fan of AKG when they were in Europe but no more.) My initial impressions : Audio Quality - It seems to be very good .... balanced ... enough bass to be heard...
  6. Paul WB5AGF

    Sony MDR-7509HD - anyone with experience flattening the freq response ?

    My interest in headphones goes through periods of activity and then inactivity. Ten years ago (2012) I bought a pair of Sony MDR-7509HD Headphones and then 'put-them-away' (I don't remember why). Quite recently I pulled-them-out-of-a-box (being rather surprised as I'd forgotten them) and began...
  7. Paul WB5AGF

    40mm driver upgrade for noise isolating headphones

    The headphone drivers (to retrofit into the Sony MDR-V600 Headphones) I purchased off eBay are : https://www.ebay.com/itm/252162897466?var=550999205336 I (strongly) suspect that the MDR-V600 earpiece housings are the reason for the excess bass. In reading about these Sony headphones : MDR-V6...
  8. Paul WB5AGF

    40mm driver upgrade for noise isolating headphones

    Hello Steve; I'm in the midst of a somewhat similar project ... trying to get a pair of Sony MDR-V600 Headphones (which get pretty bad press) to sound half-way decent. I bought the MDR-V600s off eBay for just a few Dollars because the right driver was blown. I'd been wanting to learn...
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