But is the D03 DAC good quality? Will there be much difference SQwise to a Modi or UHA 6S MKII DAC for example?
But is the D03 DAC good quality? Will there be much difference SQwise to a Modi or UHA 6S MKII DAC for example?

^^ This...
I used to love my d5k's. But now they have too much bass for me which is why I sold them. Call it getting used to a different sound signature or simply wanting a different kind of sound, but the bass of the he400 is close to perfect to my ears.

Well, i asked if there were any options to the Leckerton UHA-6S MKII in the price range, and someone recommended me that Muse DAC which costs only $20, so i guessed the SQ difference wasn't worth the money gap?
Actually i was willing to spend even more on a Yulong D100, but i don't know if it's worth the money either. That's why i came here to ask.
I just ordered my HE400's and a Schitt M&M stack combo to serve as my desktop setup. I know it my not be much to most of you guys but it's all I can afford and I am STOKED to receive it. Why can't time go faster?!
Broke Student...welcome to headfi and congrats on your purchase of an absolute beast of a hp. I don't know what you're coming from, but I would dare to say that you'll have quite a surprise when you put these on and fire them up!!
The velour pads sound much better than the pleathers to most. The Schitt stack will work great with these. All you need is some high quality music rips and just enjoy.
Matt

Broke Student...welcome to headfi and congrats on your purchase of an absolute beast of a hp. I don't know what you're coming from, but I would dare to say that you'll have quite a surprise when you put these on and fire them up!!
The velour pads sound much better than the pleathers to most. The Schitt stack will work great with these. All you need is some high quality music rips and just enjoy.
Matt
Thanks for the wonderful welcome!
I'm sure I'll get a good laugh but I'm actually coming from a set of Beats that I got for free as an unreturnable gift last year. I know they aren't great. I really don't like the what seems like overbloated bass on them. I listen to a good bit of EDM and even though I do enjoy bass, the beats just sound sloppy. I don't mind EQ'ing a bit to get a bit more umph but I really want it to sound deep but controlled and what I believe what headfi'ers call "texture".
I don't have much experience with other cans. I've also heard some Ultrasone Pro 900's (unamped, undac'd) but that's the extent of my headfi experience. I'm excited to have a introductory stack and headset that I think will pair decently well from the bit of research I did. I ordered from a sponsor on this site that had free Velour pads + free shipping on the HE-400's so I think I got a pretty great deal for a new set of cans.

Thanks for the wonderful welcome!
I'm sure I'll get a good laugh but I'm actually coming from a set of Beats that I got for free as an unreturnable gift last year. I know they aren't great. I really don't like the what seems like overbloated bass on them. I listen to a good bit of EDM and even though I do enjoy bass, the beats just sound sloppy. I don't mind EQ'ing a bit to get a bit more umph but I really want it to sound deep but controlled and what I believe what headfi'ers call "texture".
I don't have much experience with other cans. I've also heard some Ultrasone Pro 900's (unamped, undac'd) but that's the extent of my headfi experience. I'm excited to have a introductory stack and headset that I think will pair decently well from the bit of research I did. I ordered from a sponsor on this site that had free Velour pads + free shipping on the HE-400's so I think I got a pretty great deal for a new set of cans.
Pro 900s and Beats.............you are going to love the HE-400.

Thanks for the wonderful welcome!
I'm sure I'll get a good laugh but I'm actually coming from a set of Beats that I got for free as an unreturnable gift last year. I know they aren't great. I really don't like the what seems like overbloated bass on them. I listen to a good bit of EDM and even though I do enjoy bass, the beats just sound sloppy. I don't mind EQ'ing a bit to get a bit more umph but I really want it to sound deep but controlled and what I believe what headfi'ers call "texture".
I don't have much experience with other cans. I've also heard some Ultrasone Pro 900's (unamped, undac'd) but that's the extent of my headfi experience. I'm excited to have a introductory stack and headset that I think will pair decently well from the bit of research I did. I ordered from a sponsor on this site that had free Velour pads + free shipping on the HE-400's so I think I got a pretty great deal for a new set of cans.
You are going to LOVE the HE-400 in that case. These are amazing for EDM, extremely tight and very fast bass... no sloppy sound here.
These headphones are so ... so natural, for me. Not necessarily accurate or transparent, but I mean, the music is just melting into my skull. I am listening to fast, aggressive, engaging music while writing (high pressure environment on the newsdesk, new assignments every few minutes, being yelled at a lot lol) and it's not distracting. Usually, I'll put on piano or some chiptune stuff without lyrics that's more or less background noise. With my M-80 or my CAL!, I was never able to listen bands I like, vocals, etc. With these, it's like they're so good, I'm taking it all in on different levels and am still able to concentrate on my writing.
I guess that probably doesn't make sense ... they sound better so you'd think they occupy more of my attention, but I'm just able to let it sink into me. It's weird. I love it.
Edit: Also, my favorite genre thus far with these is folk/bluegrass. Banjos and mandolins in the background are basically my favorite aspects of the genres and with these, I can absolutely pick them out with ease and it's a very exciting thing for me.
@brokestudent...
Some people find the clamp too much. The headband can be gently reshaped for less clamp in you are in that camp.
Guys, stop it, You're not making the wait any easier! I keep hitting refresh on the tracking numbers even though its still days away. I don't even think I'll get it before this coming weekend. :(
Thanks for the tip! I'll keep that in mind. The one thing that seems kind of cheap and iffy on these headphones sure is the headband though...

These headphones are so ... so natural, for me. Not necessarily accurate or transparent, but I mean, the music is just melting into my skull. I am listening to fast, aggressive, engaging music while writing (high pressure environment on the newsdesk, new assignments every few minutes, being yelled at a lot lol) and it's not distracting. Usually, I'll put on piano or some chiptune stuff without lyrics that's more or less background noise. With my M-80 or my CAL!, I was never able to listen bands I like, vocals, etc. With these, it's like they're so good, I'm taking it all in on different levels and am still able to concentrate on my writing.
I guess that probably doesn't make sense ... they sound better so you'd think they occupy more of my attention, but I'm just able to let it sink into me. It's weird. I love it.
Edit: Also, my favorite genre thus far with these is folk/bluegrass. Banjos and mandolins in the background are basically my favorite aspects of the genres and with these, I can absolutely pick them out with ease and it's a very exciting thing for me.
If a colleague or employee of mine is blaring fast, aggressive, engaging music loudly through completely open headphones at my work place, I wouldn't blame myself for yelling at the person in question 
Figurative yelling, I'm working from my home, but there's approximately 300 people in our news desk program and around 40 people in our business chat currently! Caps lock is almost as effective as real yelling sometimes.