Thanks, yeah another big part of my liking these headphones is the comfort factor, as well.  The Sennheiser HD-600s clamped a bit too much on my oversized noggin.  I decided to give the Gustard H10 a go, it'll probably be a week or 2 before it arrives.  And like you said, I do plan to play...

How much difference would the Gustard H10 amp make?  The Asgard 2 has volume to spare, I guess you mean in terms of sound quality it's worth the purchase?

Thanks for the input, guys.  Getting the HE-400I has definitely opened my eyes that there's a lot to this hobby lol

PC -> Maverick Audio TubeMagic D2 (w/op-amp upgrades) -> Schiit Asgard 2 -> Hifiman HE400i.   Note:  I'm thinking about plunging for an LCD-2; I like the HE400i's so much it's only got me thinking how to improve lol.  But my concern would be then the rest of my setup may fall short to deliver...

Please let me know next time there is a meet.  I have to work that Sunday (a 12 hour night shift).  I am in Gahanna.   Have:  Maverick Audio TubeMagic D2 -> Objective 2 - > HD-600 w/canare cable , Grado sr225 

Ok thanks for the input.  Will likely stay with what I have.  I did add the WASABI (spelling?) add-on to Foobar2000.  Also got Grado 225s with L-cush, and realized man these are really mediocre compared to the HD-600s lol.

Current setup is PC (USB) to Maverick Audio TubeMagic D2 to Objective2 to HD-600. Cables used: regular USB 2.0 cable, Audioquest Evergreen 1m interconnect (RCA to 3.5mm), Grado 1/4" to 1/8" adapter, Canare cable 6' (terminated with Furutech FP-704) Few questions, please realize I am kind of new...

Thanks for the input, I heard the stock cable was the weak part of these headphones and didn't really consider using it

No it can not, as shown here:  http://www.mav-audio.com/base/product/tubemagic_d2/dac_comparison2

This was my first DAC purchase as I attempted to gain interest in higher end audio/headset equipment.  I don't really have much to compare it to.  I will say the support at Maverick audio was great.  The DAC is sleek looking and easy to use.  Had I a bit more skill with a soldering iron I'd...

This was my first headphone amp purchase, for use with HD-600s.  The amp is very easy to use and really requires no thought/effort.  My only complaint is to make the the power and increased feedback buttons more distinguishable, e.g. different colors or something.

This was my first audiophile grade headset.  I used it with an O2 amp and Maverick audio Tubemagic D2 DAC, connected via USB.  I thoroughly enjoyed the sound, everything from classical to hard rock.  My only beef with it is the canare cable is very thick and annoying, so I end up using my...

Quote:   Yes

Quote: I noticed the TubeMagic D2 has an option for an opamp upgrade.  Is that worth it, if I consider this option? http://mav-audio.com/store/ Thanks

Quote: though the Xonar sound card I have is a DS PCI version (was about $45).  So it's not the quality of the ST

Thanks.  I am leaning towards the JDS O2 + ODAC Combo

I'm planning to get the HD - 600s, as I enjoy classical music most as they seem to be highly rated, in my budget, and I have liked some of their more affordable headphones in the past.  I have about $400 I could spend on an amp and possibly a better DAC if it is recommended.  I plan to use my...

Quote: It wouldn't be portable in a sense that I'd be walking outside with them.  I work nights in an office environment and could wear them. Budget is about $175, with option to do more if necessary.  Music files I think are 256-320 kbps

After reading reviews, I am planning to get a pair of Sennheiser 600s.  I listen mainly to classical, and these seem to be the best I can get in my budget.  Also, I've owned other Sennheiser headphones and am comfortable with that brand.   I'm wondering about the other parts of the setup.  I...