Thank you !
I as using my computer with a khardas tone board + an amp (i donāt remember the name) but the bass was very weak too me (didnāt eq at the time).
I much prefer the bass of the Philips X2hr.
When i look at those graphs it seems that HD650 bass roll off very soon : HD650
compare it too X2HR : Philips X2
+too much mediums.
Thatās how i know I like very much the Harman curve
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That would definitely be the Much cheaper option, when you consider amplification!
Enjoy!
what is your source chain and have you burned them in at all?
Just a brief update on my part. I got a Topping d10 Balanced to pair with the Topping L50. It is on the bright side for sure but I think I will keep this combination for the time being.
However, I feel I have to point out that I am not sure the EDXS need that much power: trying them back and forth with the stack I got and then plugging them to the iPhone 6s Plus, actually I feel to say that the latter is already enough to enjoy them.
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I am using a schiit magni heresi amplifier, it still does not have burn in but its sound is not satisfactory for me, in genres like rock where there are many instruments it is like all the mids and trebles would screech without control, the treble has a peak at 2k and 4k, I tried to equalize but I did not like its sound, in electronics and. Vocal sounds good but nothing compared to the quality and balanced sound, definition and bass of my M570 (32 ohms-96db). Even my Fidelios H2HR have a better rounded sound.
So I decides to sell it and buy a Monolith M1570 or a closed M1060C
i would definitely give it some burn in and upgrade your system before declaring some planars as throwaways. they are just miles ahead of the m570 in capabilities and that might not be clear on a heresy but with more power it will become obvious. iād strongly recommend keeping them for a little while, burn in is real and power can be drastic on planars in general but especially on lower sensitivity ones like the XS.
iād also like to add that you arenāt hearing what your m570s are capable of with a heresy. youāre at super entry level gear and pushing into mid-fi headphones and thatās just not a fair comparison. you might not believe that power can make the difference youāre hearing but itās very real and not subtle once youāve pushed past it.
So which amp do you can recommend to me?, and second question, have you heard the m570 before?
Itās okay to trust your gut. In my experience, source pairing or even EQ donāt usually rescue headphones that I hated in the first place. I used to torture myself trying to find ways to enjoy stuff that other people said I should enjoy, but life is too short. Now I enjoy the stuff I like and I donāt waste time on the stuff I donāt.
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Very wise advice!
I have the M1060C - I use it open (took off the cups).
I prefer the XS. The monolith can be a bit fatiguing in direct comparison. I do assert that they have more forward mids, but for stage, non-fatigue listening, separation, resolution, nuances, micro as well as macro details, imaging etcā¦ airiness evenā¦
I prefer the XS.
Nonetheless, I shall not discount in any way your subjective opinions on your own comparisons with the 570 - as even my comparisons and opinions are subjective to MEā¦
EDIT: I must add, though @TheGreatOilPainter did suggest you donāt need a lot of power, but funny as it is, for me, my nissin USB DAC dongle can power the M1060C fine, yet they hardly power my XS enough, so I would still highlight power issues you may be having. Again, maybe Iām right, maybe Iām wrong so - explore more buddy, explore more. And yes, as @Pokrog said, give them some time. I didnāt like them very much the first 30 minutes - but Iāve come far now. The m1060C now feels to me, an inferior and a less finessed headphone to the Edition XS.
Me personally, Iām using the iFi micro iDSD OG. Am yet to try out balanced on my Tone2Pro+ SH-9 - I hope it will be a better combo.
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On the subject of power, I donāt have the Edition XS but can share my general experience with other planars. Iāve found that planars do indeed benefit from having extra power available, well in excess of what their rated impedance and sensitivity show. This isnāt about reaching the necessary listening volume, itās more about control, especially in the bass. I canāt explain why, and maybe itās placebo, but Iāve observed the same thing in my old LCD2C, my cheap HE4XX and my HE6se. While they may get loud enough from lower power amps, they just sound tighter and more impactful on beefier amps, especially on high gain.
All that said, based on its published specs, the Edition XS needs about 200mW to reach 115db SPL at its 18 ohm impedance and 92db/mW sensitivity. At that impedance, the Magni Heresy is putting out more than 2500mW. If thatās not the definition of plenty of headroom, I donāt know what is!
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Yeah I sat with the 570 and 1570 for a while and theyāre not a bad headphone by any means but the XS has leaps more resolving capabilities and way cleaner bass. I think the smsl sp200 is on sale right now for dirt cheap and itās pretty similar to the heresy in that itās a very clean and fairly uncolored amp but about 5x the power of the heresy. The problem with the lackluster bass youāre getting is most likely from a lack of sustained current because the XS is very capable of slam and rumble. If you have a DAC with volume control, try turning the DAC volume down and the amp up and see if you can find a nice spot where the noise floor isnāt a problem but you get more power and you might get some gains but if the heresy canāt sustain the current you might not get much benefit. Definitely worth a try.
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This.
Iāve purchased a few headphones a second time after I thought my initial impressions were too short, too biased, too whatever. And I still ended up returning the headphone the second time I bought it. Every. Single. Time. Even with some models the community thinks are wonderful.
Iām not suggesting that a 15-minute fly-by is an accurate assessment of a headphone. But if youāve listened to it for a few hours with adequate power or better and still donāt like it, itās unlikely burn-in will change your opinion that much. Go with your gut, or your ear canal-brain connection to your gut.
Thatās cool. Everyone has different tastes. Run with what fits yours and what brings you pleasure, regardless of the consensus.
My personal example is the Sennheiser HD 560s. Many people praise that headphone as the Second Coming, as the best audiophile value under $200.
I didnāt like the HD 560s right from the hop, even though I tend to like neutral sound signatures. They have a nasty treble spike at a spot that bothers me, and I thought the sound signature ā while flat and accurate ā was clinical and bland as hell. Nothing changed after about 20 hours of use, so I sold them.
Zero f*cks given. Donāt miss the HD 560s one bit. Bought HD 6xx, which I like much better. 
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Saying this goes a long way. Thatās absolutely true. I remember when I got my EMU Teaks. I fell in love with them in first sight. I donāt even remember or can relate anything to burn-in really - But they amazed me right out of the box, indeed.
Same with Focal Elears - I loved them in the first 1 minute. I got the Elex eventually, and I love it.
So yes, itās good from the start, or it never is. Burn in will just do mere improvements, ever so subtle, and whatās a mystery is - what if the burn-in was really you coming to terms with it, yourself, subjectively. So there.
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My current lineup reinforces my āgo with your gutā position in two ways.
I LOVED the HiFiMan HE-400se from the first minute I heard them. My only problem was a hotspot with the headband, which disappeared with gentle thumb kneading and more use. I still love them as much today as the day I bought them about nine months ago. Theyāre my daily drivers.
My Focal Elegia and Sennheiser HD 6xx didnāt floor me right out of the box, probably because theyāre both so different than my daily driver HE-400se. But I stuck with them for a few hours, and their joy and special qualities became very apparent to me.
Again, I would have given up too soon on the Elegia and HD 6xx if I sold or returned them after listening to them for 30 minutes. Thatās a drive-by evaluation, which usually is inaccurate. But I would have sold the Elegia and 6xx if I still didnāt like them after 10 or 20 hours, just like I did with the HD 560s.
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I couldnāt agree more. Iāve never experienced any significant burn-in improvements with any headphones. For me the eye-opening moment was when I realized that I canāt stand a sterile tuning in a sterile setup and that some stock headphone or amp tunings are absolutely not for me. I always add a touch of color by amp or dac or EQ or preamp or specific tube to get the necessary airiness and punch amount and midrange richness and other stuff. And one or two small tweaks like that can change the experience for me from meh to soul grabbing
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I am very much a novice concerning audio, so reading all the comments I do feel I must be doing something wrong actually. Because to me the EDXS really sounds perfectly fine out of my old iPhone 6s Plus. I donāt know the specifications, but I expect them to be quite similar to the Apple dongle. Can anybody else try them with an iPhone?
I am saying I must be doing something wrong because a/b-ing them from iPhone to d10b+L50 I have a really hard time noticing any difference. By the way, I am using Catalina and Audirvana. I gave Audirvana unique access to the audio device and I have tried both no upsample and DSD over PCM upsample. I tried to use the highest quality files I have, like the āRise of Skywalkerā album (24bit/192khz, each track about 5135kbps). Still I barely can tell them apartā¦
On the subject of power, does the gain switch influence it too?
To summarize, I am not complaining, if anything I am pleasently surprised, as I think the EDXS could be also an amazing companion for portability around the house. I have not heard the Deva Pro yet, but I guess they would be no match.
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Yeah I think itās the same for me. Have been testing my EDXS pair for a day now. I donāt notice a subtle difference if I plug them on Scarlett 2i2 line outs ā Topping L30 vs direct plug on Headphone amp on 2i2 (which is weak I think).
Well itās all good news at least, so only that part matters. Happy listening!
I went through the exact same thing except that I went through it with HD6XXās and HD600ās.
The collected wisdom said "You need to hear them with a better amp/stronger amp/tube amp/OTL tube amp/etc. Finally I just realized that I donāt like the Senn sound signature. Took me years to figure out which house sounds I like and which I donāt. 
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