There's another benefit to low output impedance: better bass control

If the amp's output impedance is zero, this shift in headphone impedance doesn't matter

Driven from my Bryston pre-amp, with a highis 120 ohm output impedance, these seem to come even more alive.

Whatever response curve Sennheiser had in mind ("Ve shall haf 14% less zeebilance"), high output impedance can result in something very different

If they were all u had to work with

If they were all u had to work with

If you're going with a stationary home DAC, then make sure that it has balanced outputs, and get a true balanced amplifier (Headamp GS-X is a good model, as is the Heardoom Max Balanced, or perhaps a cheaper but still excellent SFT-build balanced M^3)

I have around 7 pair of professional/audiophile headphones and these are as good as it get's in my opinion

i really wanted a very nice pair of headphones for checking my mixes on as well as for listening to music on without throwing off my ears

In short: These are as good as it gets -IF- if your reason for wanting headphones doesn't include recording

I use these in my home studio for late-night composing and mixing, as well as for pure enjoyment.

These headphones handle it all as well as you can imagine, and will expose items in your favorite songs you had never heard before.

Not to mention their open-back design and 300 ohms of impedance mean you shouldn't be using them while traveling, though this doesn't bother me as I use the at home

Although there has not been sufficient time for burn-in the phones are superbly accurate (especially in the midrange: vocals, woodwinds, etc.) as well as in the wonderfully detailed highs (in an odd turn of events I happened to find that the HD 600 was not much less in the highs than my Koss electrostatics)