The HE400 is here! Lol, they were horribly misaligned upon opening them. Took a second to align properly. One of the pleather pads had a pressure line, as if it was pressed against something. Not an issue as I won't be using the pleather, but it made the pad look bumpy and uneven. Upon first holding them... man they are quite heavy compared to every other headphone I've owned (including the HE-4). It's a good weight though, makes it feel not cheap. Speaking of pleather, they don't feel too bad. Certainly less contact surface than the Denons, so I find the pads more comfortable on the HE400. I really like the stock canare cable. Not as nice as the cable that came with the HE-4 (with the fabric), but these are more rugged, and less prone to twisting, so I'm happy.
Upon putting them on... they feel lovely on my head. Just like the HE-4, I LOVE this headband style more than any other (with the exception of the Steelseries Siberia V1). The weight is even distributed on my head, so it shouldn't cause long term discomfort. Okay, first listening test, What? I thought these were supposed to be easy to drive? My NFB-5 has never had to go the right side of the volume knob on Low Gain, even with the Q701. My knob is almost a 3 o' clock! Once I set it to high gain, it's down to around 11 o'clock. That's a surprise. I'm sorry, but I don't see how this is easy to drive. My NFB-5 has a crapton of power (something like 2.5 watts at 35ohm), so it's crazy just how much it needs on the pot.
Hmm... they're warm, but they don't sound veiled or muddy. In fact, I'd say the warmth is akin to the Q701, just slightly more so. (In comparison, the old K701 I had was noticeably brighter than the Q701). I don't find them too dark. The sound signature puts a smile on my face.
Obviously not as much bass as my old D7000 and my current Pro 900, but I feel it's a neutral-ish bass (for ME). I'm not sure if it has more bass than the HE-4 though, as I felt the bass on the HE-4 had a lot of authority. This is a fantastic replacement for the Q701 for me. It trades off a bit of the soundstage for more bass. It has a meatier sound. I don't find anything about it being veiled. I see what you guys are saying about the treble. At certain frequencies it sounds smooth, and at others, it's has like the perfect amount of sparkle. So I'm 100% happy with it's treble. Bullet dodged!
The mids are well in tune with the rest of the sound, and it's gonna be quite jarring going back to the Pro 900 in this regard.
So far, it's not going to make my Pro 900s go back. I love the Pro 900s (quite a bit more than I previously expressed, as I was disappointed with them at first), and they excel in bringing out the oomph in EDM (which is my fave genres), but the HE400 is definitely going to be my go to for everything else.
Although the soundstage isn't Q701 size, the HE400s have a pretty good sense of air about them.
All this is with the pleather pads.
I'm surprised at myself for being able to resist throwing on the velours immediately. The pleather pads really aren't that bad. I wouldn't want the HE400 with pleathers, as they are already hot in the less than 30 minutes I've used them, but they certainly keep cooler than every other pleather padded can I've used, though those have all been closed headphones, trapping in the heat.
Lol, they are super open. They leak worse than the Q701/DT990, and practically everything else I've owned. XD
Chicolom, I think you'd be in love with the HE400.