I'll give a quick overview of my thoughts on the 449's here, but if you want a full review, you can check out a complete breakdown here:   HD 449 Review   My quick thoughts on the HD 449 is that it has a decent sound in that it's tonally accurate as it has a very neutral sound.  The bass, midrange and treble are all well balanced throughout the volume range but overall the sound just lacks that level of detail that gets you tapping your feet and nodding your head.  The one huge plus of the HD 449's is they are super lightweight.  You'll...

I reviewed the 32 ohm version of the DT990 Premium Open headphones and I have to tell you it was a joy.   I'll touch on the major points here but if you want to see my full video review or read my written review, you can head over to the link below....   http://www.headphonereviewhq.com/reviews/beyerdynamic-dt990-premium-review/   Briefly, here's what I loved about the DT990 Premiums.  First, they might be the most comfortable set of headphones I've ever put on my head - yes, even better than the T1's or Beyerdynamic's other high end sets...

I just wanted to touch on the basics with the pros and cons listed here and give it the ratings it deserves.  Briefly I will say that this thing is an absolute bargain for what it can do and the build quality is absolutely superb.  It's one of those products that you're happy you purchased.  The only weak spot I've found in this device is the bass EQ.  I prefer the bass EQ on the E11 over the E17 as it has more of a natural curve to it where the E17 seems to be a bit more abrupt.  Even with that, this is still an outstanding amplifier.  To get all my...

For a complete in-depth review you can hit my page where I've gone over this in detail.  I just wanted to list the pros and cons above and leave my feedback here with the star ratings so it can be added to everyone else's opinions.  For the record though, I don't think there's a better price/performance portable headphone amplifier on the market.  Just a crazy good value for a rich and powerful sounding amplifier.   http://www.headphonereviewhq.com/reviews/fiio-e11-amplifier-review/