Radsone Earstudio ES100 MK2 DAC/Amp
Radsone Earstudio ES100 MK2 DAC/Amp
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Product Description
Pocket-sized and engineered for performance, the second-generation Radsone Earstudio ES100 MK2 Bluetooth DAC/amp delivers impressive digital-to-audio conversion for Bluetooth devices. It's built with two high-quality AK4375a DACs and has both a 3.5-millimeter unbalanced output and a 2.5-millimeter balanced output Read More

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LostnAmerica
7
Mar 21, 2020
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Yeah, I jut checked, the MkII is more on Amazon, MkI is cheaper...Good deal here ion Drop...
Mar 21, 2020
HaVoCTzu
197
Mar 20, 2020
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Great Product, but Cheaper on Amazon sounds great, very portable, balanced 2.5mm. easy recommend.. but you can save a few bucks via amazon.
Mar 20, 2020
HaVoCTzu
197
Mar 21, 2020
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It is MK2. Your package is still on the way, but it's running late. Now expected March 15 - March 16. .... EarStudio ES100 MK2-24bit Portable... 
Mar 21, 2020
Deathbed
135
Mar 25, 2020
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Opppsssss
Mar 25, 2020
njgphotography
93
Mar 20, 2020
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You'll see my review/comments way down at the beginning of this thread - I did finally get my issues resolved and received an MK2 as a replacement for my original unit. Oddly, after finding the original one buried under some junk in my office I plugged it in and it started charging again... That said, quality issues continue to plague these little amps and they are tempermental to say the least. When they work, they're fantastic, but only *when* they work. The problem I have with the MK2 is also revolving around the battery. I can leave it plugged in to charge until it says it's fully charged, link it to my phone and it will show 100% battery, then as soon as I unplug it, the battery will drop to anywhere from 65 to 85% (the Battery saver setting is *not* on). On a recent flight to California from the east coast, I was down to about 15% battery on landing which means it didn't last but 5 hours, which is well outside claimed 14hr life and much lower than my original unit. I in-fact had my original unit with me as a backup, and turned to that unit for the return trip and it worked flawlessly - showing 100% battery on and off the charger, lasting the 8-hours of travel (had a layover) with battery to spare. And to assuage any concerns that I mixed the units up; I had changed the LED on the MK2 to white the instant I received it, something you're not able to do with the original. I really do want to love these because they work so well, but they really need to work out their QC issues. The companion app is incredibly robust and has never given me an issue on Android. At the full $100 bucks I have trouble encouraging the spend. $85 is still quite a risk but it may soften the blow if you get a finicky unit.
Mar 20, 2020
Luc..V
0
Mar 4, 2020
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This may be a dumb question but could I connect this to something like a Topping NS4 DAC/AMP? I'd like to use more power hungry headphones on the go but I don't think the receiver alone will be enough. Thanks
Mar 4, 2020
njgphotography
93
Mar 20, 2020
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The only thing the ES100 would add to this is bluetooth - why not just USB to the NS4 straight out of the phone? Easier to band those two together than it will be the ES100 and your phone.
Mar 20, 2020
CactusPete
30
Mar 20, 2020
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Yes you can, But the NX4 DAC/AMP would only be using the AMP side. i.e. 3.5mm out to 3.5mm in connector cable. Single ended to Single ended. DAC in the NX4 DSD will NOT be used.
Mar 20, 2020
Cerda_CZ
18
Jan 6, 2020
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Hi guys, i have a simple question. How good or bad the ES100 will play with iPhone 11 and for example ibasso it01s via BT compared to wired method? iPhones has only AAC codes so and i am wondering if the combination of ES100 with any middle range headphones is a good way or i will be disapointing at the end doesnt matter how good heapdones i pair with it.
Jan 6, 2020
HaVoCTzu
197
Mar 20, 2020
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the sound out of this little thing is about 96% as good as my Hugo2. So far, I’ve only used it to power EJ07 IEMs and as a Bluetooth connection for my trucks stereo, and in both cases it was great. which headphones did you have in mind, there is a chance I have them and can test.
Mar 20, 2020
morndewey
16
Jan 1, 2020
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Can this output signal to amp via usb or only 3.5/2.5? Tried it usb in my car, no dice. No aux jack. Thanks
Jan 1, 2020
njgphotography
93
Mar 20, 2020
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USB is input/power only, not output.
Mar 20, 2020
Critical50
28
Dec 17, 2019
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Just got mine. Music isnt playing. Sound is coming out though. Just not my music. The battery status claims its 60%. So I figured thats good enough to test it out. When I press play on Spotify, I get beep boop beep noise, then 3 identical noises that are like "doon doon doon".
Dec 17, 2019
Jagarmusen
22
Jan 14, 2020
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Been using mine for an hour now. when connected to pc it made wierd click noise back and fourth betwen left and right channel wilst playing. Had to disconnect and reconect. So yea it may have something wierd going on. If you are using bluetooth, have you tried to erase the memory of it in your phone and reintroduced it to the phone? Worked whit an older bluetooth speaker I once had that I thought broke but just needed a deeper reset in my phone.
Jan 14, 2020
Brosky
1
Dec 17, 2019
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this has been working fine for few days , now music is not streaming thru headphone where as the buttons do function properly eg : track change . any help appreciated ..
Dec 17, 2019
verifonix
766
Dec 14, 2019
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can someone tell me if this has a microphone -input- ? if I connect it to a laptop, will it pick up a microphone+headset combo?
Dec 14, 2019
njgphotography
93
Dec 14, 2019
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I believe what you're asking is if either of the audio jacks are TRRS and if they will feed input from a mic back to a computer via the USB port or Bluetooth? The answer is no - the 3.5mm jack is a standard stereo TRS jack, the 2.5mm jack is TRRS but meant for balanced output, and has no input capability. There is a mic on the unit itself.
Dec 14, 2019
verifonix
766
Dec 15, 2019
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Thank you
Dec 15, 2019
rowaihi.11
18
Dec 14, 2019
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What's the difference between the mk2 and the regular one? I have the regular one and it's great. Am I missing out on something with the mk2?
Dec 14, 2019
Magestic12
42
Dec 14, 2019
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Nothing hardware or firmware wise. It's just case enhancements to the coating, buttons, clip & the led has added white & midnight blue. It's still the same DAC chips, PCB, OPAMP, firmware etc. I too have the MK 1.
Dec 14, 2019
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