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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All of our reviews are from verified customers.
4.5
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26
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95%
would recommend to a friend
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trueholygoat
5
Sep 16, 2020
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This tiny, key-fob sized device isn't much of an amp, but it's a fantastic Bluetooth DAC, and the free app allows you to dial-in the sound to your liking. Convenience is the major selling point of the ES100 MK2, turning wired headphones and older car decks into BT sets, and improving the sound along the way. I'm considering getting a 2nd just to keep in the car. EDIT: Yeah, no. It died yesterday. Turned it on, hit play on my phone and heard a split second of audio, then *poof*! Nothing. Plugging it into the computer does nothing. It's just a $90 annoyance, because it's not heavy enough to be a paperweight. No, I would not recommend this to a friend. EDIT 2, Electric Boogaloo: Got in touch with Radsone, and after the factory reset failed, they agreed to replace the unit. I've added a star for the quick and excellent customer service. Hopefully, the new unit will last longer than the other one.
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tcurtis6984
95
Sep 12, 2020
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A lot lighter and smaller than i thought!
This device is very small and light weight! I thought it was much bigger from the photos, which I'm very glad it is not big. It is ideal for portable use. I downloaded the app and connected the Bluetooth easily. This device acts as a bluetooth receiver and DAC/AMP. Once you download the application, you have the ability to adjust many different settings for the DAC and equalizer for the amplifier. There is a lot to look over at first to get the feel of how it all works. But I love how you have the ability to make all kinds of adjustments to your listening experience. I will say that it makes almost all of my headphones and iems sound better. Although the amplifier is not very powerful. It wasn't able to power my Fostex T50RP MK2s very well. I will mostly be using this with my Tin T2s and other iems on plane rides and other times I need a portable setup. It made my Meze 99 Noir sound very very smooth.
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Would recommend to a friend.
AlexXeno54
0
Aug 29, 2020
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Easy to use and a surprising amount of features.
An excellent way to make some good audiophile quality iems into daily drivers, with a microphone and on the go bluetooth connectivity. The app has a comprehensive array of settings and features. The user manual needs to be included though. I had to do a lot of reading up on how to update the thing on the earstudio website.
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Would recommend to a friend.
Bob3600
153
Aug 1, 2020
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Nice!!
Nice!! Very Portable and well thought out!!
biokod
1
Jul 28, 2020
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The best wireless solution for wired earphones
Almost everything in it is perfect: codecs support, sound, 2 output connectors, software with all possible options. I use it with AKG N40 from balanced output. Just 2 drawbacks: clip mounting point is in incorrect end of device, can't correctly attach to tshirt. And the 3.5mm connecter should be with microphone contact, to make possible outer mic, cause inner is poor.
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Would recommend to a friend.
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bhalejos
24
Jul 7, 2020
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A wonderful small piece of audiophile technology
Just one word of advise to realise the maximum potential of this jewel: download all the documentation and apps from EarStudio's (Radsone seems to be phasing out their parent brand) website: https://earstudio.store/products/es100. This recommendation should be clearly displayed in the package but, perhaps appealing to the cleanliness and simplicity of its packaging, it is nowhere to be found. Also, remember this is the "MK2" version of the ES100 because the MK1 is, basically, discontinued and barely included on that website. What I loved the most about this DAC is it not only includes very advanced features, but they care to EXPLAIN the purpose of all those nitty-gritty details! They even have a very well developed music playing app which, in my taste, runs circles around the latest Apple's "Music" one.
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Would recommend to a friend.
myla
26
Jul 4, 2020
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Convenient
I bought this to replace my AUDIRECT BEAM PORTABLE DAC/AMP for the 2.5mm balanced output and the Bluetooth to replace the problematic BEAM cable and I'm quite satisfied with the outcome. The battery management has definitely improved and I can receive phone call a lot easier however the build quality could have been a bit better.
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Would recommend to a friend.
HaVoCTzu
235
Jun 26, 2020
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Excellent product
i’ve been buying these as gifts because of how good they are.
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Would recommend to a friend.
sp57
3
Jun 19, 2020
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Game changer for car audio and headphones
Adds dimension and volume to car audio. Eliminates the Bluetooth drop in fidelity. Down side you need to use your phone for changing tracks.
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Would recommend to a friend.
PACoug
168
Jun 12, 2020
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Very good for the price.
Been hearing about the Earstudio for some tim and I’ve wanted to give it a shot with my many Mobile IEMs with 3.5mm plugs ever since phones lost their headphone jacks. I’ve tried the TWS dongles with both 2-pin and mmcx earphones and honestly for a $50 product they are brilliant even with flaws. However, this little tiny thing sounds so much better than a phone’s output or the TRN dongles that it’s easily worth the extra money and the aggravation of corded earphones. If you prioritize good sound this is about as good a portable Bluetooth headphone amp as you’re going to find until you get into multiples of the price. I have an SMSL DAC/amp with a separate power supply that sounds better with these mobile IEMs but you’re stuck in place listening to that. The Earstudio just does a great job in a tiny and ultralight form factor. Sound is better than expected with a smooth character that is rare in this price range. Good solid decoding of lossy Bluetooth audio right up to the highest quality AptX streams. Bass has authority and speed and rarely feels wireless. Midrange has plenty of smooth, listenable presence without honking or fatigue (with decent source material) and highs are well beyond the capacity of many good IEMs to reproduce. In the audible range the highs are just Goldilocks. Enough sparkle without the harshness or sibilance artifacts may experience with products in this category. Ok I’m heaping praise on this thing. My main quibble is that it has not built in functionality for the inline remote, mic and volume controls of many headsets. I’d like to see that in the future. You have to use the controls and mic on the unit itself. if you like good sound on the go without carrying around a mobile hi fi rig with a giant rubber band like so many hi fi addicts do, try this. It won’t give you the performance of a nice DAP and a good portable DAC/amp but you don’t need it to for this money. You can take this thing all over where you wouldn’t think of taking that fancy expensive gear. It’s got enough oomph to drive many over ear headphones sweetly, especially the lower impedance Beyerdynamics for example. It won’t rock your socks off with your HD650s but it will make chamber music or acoustic jazz sound great on them at reasonable volume levels. The Radsone Earstudio is my ideal balance of performance and portability. Once it gets more involved than this I just leave it at home but this tiny box has brought many great earphones back out of storage. if you don’t like wires and are happy with the sound of some of today’s TWS options the Earstudio may seem like a weird product to you. If you like better sound and have some nice wired earphones laying around not getting any love, it makes perfect sense. If you’re planning on using the Earstudio with the 2-pin or MMCX in-ears it was designed for, spend a little money for a solid balanced cable with a 2.5mm balanced plug. Even a cheap one sounds better than the SE cable that came with your IEM. I bought a $12 MMCX balanced cable and a $13 2-pin version from AliExpress and both of these cheap cables easily outperform even pricey single ended cables with the same phones on the Earstudio. Better channel separation, transient response, air, noise floor, bass response, overall coherence and slam. every earphone I’ve used in balanced mode has been much more engaging, musical and powerful than in SE mode. This product makes Bluetooth a viable option for me. As with all audio gear, your experience will differ from mine. You own different ears as well as different earphones. I recommend having the Earstudio on hand if you have a lot of pretty nice wired earphones laying about, especially ones with replaceable cables. It will bring those earphones back into your life. I have a beautiful sounding pair of Trinity Audio earphones I probably never would have used again. They are hard wired for single ended use only. They’re so good with my ears, I prefer listening to them over Shure 535s in balanced mode. Even though your experience will differ from mine, if you have any IEMs that were $200 or more, you will probably be delighted at the performance of this tiny, relatively inexpensive little box. I know other firms make things that do some of what the Earstudio does. But some are so expensive you don’t want to take them outdoors on the street or hiking or near water for fear of loss or damage. Radsone has packed good-enough sound and great functionality into a box you can take anywhere, and priced it for its mission. solid recommend.
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Would recommend to a friend.
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