I just wanted to give some impressions on U7 Echelon and compared it with some phones I have access to. Today, for a moment I could't find the empedence setting in my Xonar U7 Echelon with Windows 10 driver (Still beta btw). I thought to myself how is that possible while using this card 2 years actively and being in this forum? First the speakers and spdif showed but headhpone didn't showed itself. Then I clicked the wheel on the U7 and then I saw the headhpone symbol showed up. I right clicked it but onyl the set the defaul option came in. I couldn't find any solution, then I decided to restart my computer, and it worked. After restarting my computer impedance setting showed up along with the set the default option, problem solved I compared the Xonar U7 Echelon (Windows 10 Beta Driver, max empedance), iPhone 4 and Samsung Galaxy S7 edge dual (exynos variant) 3.5mm Headphone jacks quality today, using Youtube App. I put the same songs on same quality and listened carefully. My headphones are cheapo Philips Noise Canceling Headphones. I don't like to use headphones If the speakers are available. Anyways, my findings are; Comparing S7 edge to the iPhone 4: iPhone 4 is definitely has more max volume. I would say about 15-20 % more volume. (Even though my S7 has about 10% more volume than iPhone 6S I compared). I heard more details with iPhone 4, on the mid-low area. iPhone 4 is quite better on the bass, mid bass and mid area. Natural instruments like trumpets are more real and enjoyable, and the starting of the note the first breath I would say is better on iPhone 4. I can hear the background noise while the music is not playing on the S7, like white noise but really really low volume. S7 on the other hand, is lacking in bass and midbass area but has more epmphasis on the upper mids and highs. I would heard more details on mids to upper mids with the S7, but it might be related to the fact that S7 shows less lower mids and bass. Hİghs are spikey in both devices, but it distracts me more on the S7 because it has more emphasis on mid and higher frequencies as I stated. ( Highs are less spikey and more natural on the U7, but still a bit spikey, so I think this is related to my headphones I'm using. But there is 1 thing that I realised more and more while switching between them. There is 1 thing that S7 did appearently better. In iPhone 4,sound is more thick and has more presence BUT while listening same thing, I feel the Song is more crowded with the iPhone 4. With the S7, background is more black I would say. Listening with iPhone like they added just a little tiny amount of reverb to everything, just a very tiny little bit so that I would prefer S7 with most modern pop, rock dubstep(although I don't like most dubsteps) etc. I must say that I am impressed with the iphone and I would still prefer iPhone 4 overall! Especially for atmospheric, classical, film scores and etc iPhone is undoutably better than S7. I have seen many people in the forums who say iPhone 4 is the best iPhone to all the way to iPhone 7, and I'm very surprised that Apple team put serious components and achieved performance that still races with the 6 years never flagships, at that time. I think the iPhone 4 was the best device (considering the device at the time it launched) of the Apple, but that's another topic. Comparing S7 to the U7 Echelon: I'm gonna be honest, at first I could't find almost any diffrence except for the bass and midbass area. But after some time and careful listening and not doing other things, -U7 is a little more softer, (which some people say the same thing like: Asus cards are more forgiving compared with the Soundblasters, and I think It is sometimes good like you know when you want to relax it is definitely really really good but in energetic pop and rocks and techno etc it isn't. ) . Thus U7 is more natural and relaxing and suits more for the most audiophilie peoples music preferences like classics and jazz and etc. Because the U7 is more forgiving the highs are less harsh and it has less compared to S7. And after careful listening (which I normally don't) S7 sound unnatural and you know you started to look at the phone as a toy or joke compared to U7, which might be bad cause me personally listen thorugh from the S7 when I'm not at home. - Remeber the thing I explained "There is 1 thing that S7 appearently better than the iPhone 4" ? The U7 makes it even 2 times better than the S7 edge ! Background is way less crowded.(I understood After detailed listening in very quiet environment for 1 minute listening) - Bass control When the bass hits or things like kick drum kicks in just at that moment the other things and instruments and vocals etc on the S7 makes a dip, but for a very little time. It's like phone says I can't give you instatnt powerfull bass and and other instruments at the same time. I realised that when I compared the phone with S7. But on the other hand U7 is like no problem take from all the frequencies as much as you want. When bass kicks in it doesn't affect the other things on the U7 echelon. Thank you. And anyone who can compare Xonar U7 or Galaxy S7 with the other DAPs especially with the Sony A15 or A35? I'm thinking to buy one of seperate DAPs but not sure about how they will perform compared to the ones I have. Thanks. Edited the major mistakes after I read it myself.