I had AKG K70 headphones bough in 1996. They were quit nice but once I got Sony MDR-V6 the K70 went for the shelf.

  Fun of it is probably, even if that, the only reason to set the gain as e07k begins to sound crispy like a cheap DAP on max. Unfortunately I have to set up +6dB gain for my Q701 sometimes and hence would love to know the physics behind it.

  Darn! Anyone with an access to an oscilloscope or a good multimeter out there to help check the readings? Or let's just Google the specs and puff up how awesome they are. :-/ In all seriousness, is DYI spirit and tools still out there? I'm totally getting an oscilloscope as soon as I get a...

So back to the original question what are we looking at with +6dB gain in mW at 32 ohms?

  Does GaIn affect the output power?

Maybe someone already posted this, but I would like to report that the 07k works with Microsoft Surface smoothly by just plugging into the standard USB port.   On the question side: Does "gain +6dB" increases output power (mW) and what would it be at 67ohms?

Are they also smelling a bit like bunt electronics ? (Kind of like the old CRT TV after being on too long).

Is there a particular way to burn in? Volume, music, amp gain?

How do they sound with e07k only without e12? I got e07k and it's a huge improvement over my HP business series laptop audio, but hardly much over my Nokia Lumia 520 analog sound amplification .

Clip+ was an interesting little crispy device, until I lost it.. :( ..and now that the dock connector on my Zune finally caved in (do you know a cheap fix?) I am pounding my portable music with Nokia N9 and Nokia Lumia 520 with 64GB microSD plugged in ;) both sound very descent.

Just had an extensive 3 hour listening session with my brand new Q701 and have two short questions: 1. Why do the headphones smell a bit mechanically when I took them off? 2. What's your best portable amp or DAC+amp under or about $100 to work specifically with Q701?

Here is my observation on Zune 120 vs iPod Classic vs iPod Touch 8Gb (2G):   - Classic is just plainly bad. I sold it, discounting it and losing $200. It sounded very muffed and too much lows. There was no high and no mids either. Vocals sounded like singers had towels over their mouths.  ...