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Radsone EarStudio ES100

Discussion in 'Portable Headphone Amps' started by m4rkw, Dec 12, 2017.
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  1. vurtomatic
    Good to know, thank you. It's on Massdrop now.
  2. Cevisi
    Screenshot_20190719-231217_Settings.jpg when i use ldac on my phone it sounds in last time very soulless and weak when change aptx it get his dynamics and power back. this just happens whit my phone. whit the phone of my wife it works perfectly. any one know why ?
    Last edited: Jul 19, 2019
  3. max232
  4. Matty Allen
    ES100 on mass drop now for $79
  5. max232
    With free shipping and free Moondrop Crescent earphones?
  6. Kundi
  7. Quimi
    Hello, can you help me too? Settings for the best lineout sound and settings for direct sound to the headphones? Thank you.
    Last edited: Jul 20, 2019
  8. Quimi
    Toastybob likes this.
  9. waynes world
    I sent the following message to radsone via their website:


    I purchased the ES100 from amazon.ca on Feb21/18. I have been a long time supporter on headfi and enjoyed discussions with wslee when he participated there (I am "waynes world").

    My ES100 (firmware 2.0.2) turned off on it's own today. It was at about 30% charge. The power button would not get it started. When I plugged in a USB cable, it would flash blue and then nothing. If I hold in the USB cable firmly into the ES100, then it turns on and connects with my phone (Samsung S8 running android 9), but if I stop holding it in firmly, it turns off. Once today, after holding the cable in firmly for approx 10 minutes, it actually did stay turned on, and I was able to use it for a few hours (the power button worked for pausing etc, and I used the power button to turn it off). But now I can't get it to stay on unless I continue to firmly hold the usb cable in.

    Any ideas?"

    If anyone here has any ideas, please speaketh!

    An addendum to the above is that when I did get it going, it turned off on it's own once because I the phone was not nearby for a while, and I then turned it on via the power button. So I thought "yippee, it seems like it's working again". So the problem doesn't have to do with the power button per se.
    Last edited: Jul 20, 2019
  10. zolom
    Try to reset it - holding the volume + and - , together with the skip back and forward buttons (all four) for few seconds; or do factory reset from the Earstudio app menu.
    If that does not help, try to re-flash with version 2.02.

    Hope that helps.
    Last edited: Jul 21, 2019
  11. waynes world
    Thanks. I already had re-flashed with version 2.02. Now I just tried the factory reset via the "holding all 4 keys" method. Still not working properly :frowning2:

    Definitely seems to have to do with the usb connector. If I can hold it with proper pressure/angle and get it powered, it works. But 99% of the time when I release the pressure/angle, it turns off and the power button won't get it going again. But 1% of the time when I release the pressure/angle, it stays going and I can then disconnect the usb and it works fine, but only for a while.

    So not looking good unfortunately.
  12. moisespr123
    I changed the Digital Filter to "Short Delay Slow Roll-Off" and that helped me get a better sound, at least for my Hidizs MS4 using the 2.5mm balanced output.
  13. Quimi
    Thank you
  14. chinmie

    DIY-shorten the cable on my ER4XR to make it more manageable wearing it with the ES100. i just looped the cable a few times and wrapped it with those self adhesive medical /tactical wrap. i wear them behind the neck like sportbands
    HungryPanda and peter123 like this.
  15. Broquen
    Can I ask for your music style preferences? ER4XR + ES100 leads me to think that you listen to no hard rock or metal using that combo?
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