You're not going to be able to come from IEMs and go to headphones like the HD600s, 650s, 700s, etc and get that sort of bass quantity/boom. While you can get some good extension and quantity depending on the audio it's just not going to happen, even with a good amp. 

Here's a little "trick" to fine tuning the sound on your HD600s.. might vary depending on the size of your ears but the further up the can rides on your ear, the more treble sparkle you get. While sometimes this can be attractive I've found it sounds more sibilant, thinner and not as balanced...

4490 wouldn't be an issue in a small case. Thinking of Multibit and all,  if you take a look at the Bifrost pictures on the Schiit site you can see where the Multibit board is pretty long. Multibit isn't "affordable" so between this and that I doubt we'd see a Modi Multibit or anything of that...

Since you have a non-uber Modi 2, the Bifrost 4490 is essentially a significant upgrade. When I say significant upgrade, I mean on a small scale but very well worth it if you have the money to spare. I would say go for it, even more so since you have HD800s. If you can't hear a difference, like...

  If you take that wording out of context, then yes that's not really something I'd say about them by itself. I just used that saying as a way to describe how you can get by listening to most styles of music and get a respectable sound with the HD600. I definitely vouch for how well they do...

If the newer AKG 712 is similar to the older K702/701 then they are probably not what you want for rock. You end up with everything being so spaced out, with such an uninvolved, odd presentation. I've always listened to many genres but rock has always been very important to me. My very first...

I have been running my 4490 upgrade for about 5 days now, coming from Uber (have had Uber for about 2.5 years). I can say the biggest difference for me has been a change in the upper end. Say normally a high-hat during a busy song on my HD600s would end up as more of a metallic, less focused...

I like the PYST cables. They are just the right length and do great for stacking Bifrost and Asgard. I imagine you should be doing quite well with an Asgard 2 and Bifrost Uber for your headphones, so in a sense it's a good setup to "never need to upgrade", but of course there's always "better"...

I just got my Uber upgrade in the mail today. The installation went fairly smooth with a few notes:   It works great if you remove the metal chassis first, leaving the actual board attached to the aluminum cover with those middle bottom screws still in. This method is mentioned in one part...

The HD600s will most likely sound fine out of your motherboard, unless it just happens to be a horrible audio chipset, which I'd highly doubt, and also which of course any headphone would sound bad. Will they sound "better" out of an Amp and DAC?.....well yes but it isn't required to enjoy the...

Changes can be a shock initially, going from a certain sound to another. I do believe some things should be given time to adjust. I once thought I desired ultra treble because it "seemed more lively". I'm glad I got over it because all it does is fatigue my ears quickly and I'm left unable to...

When I first got my HD-600s over 3 years ago the clamping force on the head was significant out of the box. I did the headband adjustment (metal band flexing). I believe there is a thread somewhere with some pictures describing the process. It made a huge difference, so they are extremely...

Quote:   Honestly?  That's the first thing I thought of when I heard about the 558 and 598. "Surely they would have fixed the major cracking issues they were having on the 555 and 595."  Sounds like an epic failure on their part.  I don't understand why they would want to continue to...

Actually had the HD555s there to compare to the AD700s.  It was a major relief to put the HD555s back on after hearing the AD700s.  Music was involving again.  I just couldn't ever listen to any rock, metal, pop, techno, any of that on the AD700s to be honest.  Classical is okay.  Others feel...

From my experience with the headphones, the AD700s sound distant.  They lack full, hard hitting bass; so if you like that then for sure look elsewhere.  They just didn't work that well for music, comparing them to other headphones I've heard.  I actually listened to some Metallica with the...