Updated (6/20/21) - HD600's are still a great pair of headphones, and here's what I've learned since I bought mine. You get out what you put in; these headphones like better quality recordings, so if you have live-recorded and properly made music, you can crank that music up and it will sound phenomenal. With poor quality recordings, you'll find yourself steering away from those songs pretty quickly with how badly they sound. These are good to listen to records with, too, as long as you have a decent record player. I've had my HD600's for 4 years now, and they're still going strong. You may need to replace the cable, earcups, and headband over time, but these will last you a very long time.TL:DR - These headphones are great, especially for the price. The sound is neutral, but the quality is far from lacking.FULL REVIEW Despite an issue with my first pair of HD 600's, I liked the sound so much I got a second pair once the first was returned. Here's what I've found out about the HD 600's in the 6 months I've had them.Comfort - These headphones are very lightweight, so it's easy to forget you're wearing them. However, when you first get them, these headphones clamp your head hard. Keep on using them and let the headband stretch out, and over time you'll be able to wear them for literally all-day use without any soreness. W/O Amp and DAC - The bass is very recessed on anything you listen to without a proper amp. Mids and highs are still good, but the sound isn't as full or realistic without a proper amp. The sound is still good enough to outperform everything else I've tried and blew me away when I first tried them out, which was with this set up.W/ Amp and DAC (Magni 2 and Modi 2) - The music really seemed to come to life. From classical remixes of songs to Slash's performance in Paradise City, these headphones still leave me impressed. Bass, mids, and highs all sound good with none over powering the other. There is a lot of detail with these, which has led me to picking up background sounds I couldn't hear or overlooked before. Hearing a lot of extra details in music I already knew took a bit of getting used to, but I very quickly started to like certain songs more because I realize they had more sounds than I realized. This has been very helpful when comparing the sound between my HD 600's and other speakers and headphones I've tried. The only real problem with the HD 600's is that if there are any imperfections in your music, such as problems with sound mastering or just being an MP3 you converted from YouTube, you will hear every imperfection. Keep that in mind when getting these or other audiophile grade headphones; you will need to get CD's or, at the barest minimum, 320 kbps MP3's for listening to music. The static and distortion in anything lower quality will be really annoying. 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.Overall, if you want to get a pair of audiophile grade headphones for under $300 and you can afford these, do not hesitate. There are definitely other and better options out there, but not for the same price as these (unless these go back up $385 again for a short period). Sure, they aren't the best sounding headphones in the world and the $270 I spent when I got these is still a lot of money, but I haven't regretted these since I got them. These changed my perspective on listening to music for the better and you'd be hard pressed to go wrong with buying a pair of HD 600's.