KaiFi
500+ Head-Fier
are we now acting like the HD600 series doesn't sound good out of the box? LOL Cmon! the exact opposite, in fact the HD580 is probably the headphone which started this whole hobby, its the benchmark and has always been the reference, the headphone which has stood the test of time and is even currently one of the favourite headphone of all popular reviewers, even no matter which year. we have listened to it so much that we became picky of even the slightest potential improvement. namely the bass but anyone who says the hd600 series doesn't sound good out of the box probably has cauliflower ears like a ufc fighter or is an absolute fool sorry to say.
No!
I have an HD660S and I don’t EQ it. This is just all hypothetical. I was responding to the idea that EQ is needed to fix certain headphones’ problems. And to me, that’s BS. If it has “problems” out of the box, then it’s a crap headphone, and I don’t feel that way about any Sennheiser I’ve owned.