I am a complete newb at this - wanted to get that out of the way in my first post. The reason I'm here is because I tested some Sennheisers HD6-something headphones at Frankfurt airport and was completely BLOWN AWAY by what you guys refer to as "soundstage." I can't remember the exact model, but priced at 480 euros I knew I had to keep walking. You would say I auditioned those Sennheisers, but really I was just bored when my flight got delayed. I thought I knew what excellent sound was... I use Sony MDR1A at the office (got them for 98 euros on Amazon Germany) and then to watch movies at night I use Monoprice 8323 with Brainwavz earpads - the pads were more expensive than the headphones. I still think they're brilliant for those purposes. But holy crap this "soundstage" was something else. Needless to say, I now want another pair for listening to music at home. I spent the week reading endless reviews and threads on this forum. Half the time I was deciphering your jargon (imaging, impedence, ADs, SHPs, 600s, SRs, aaarrgghh). But eventually I understood that what I'm looking for is over-ear, open or semi-open headphones, with soundstage that is both wide AND deep. Not a gamer, and I will use them to play soft/hard rock and classic metal at home off Spotify on my phone (I read my ZTE Axon 7 has a decent amp for a phone). I have no interest in getting a portable amp *Ducks for cover* sorry, I know this is sacrilege for you guys, but as I said, you're the audiophiles, I just want to make the most of the limited budget I have. Since I can't afford Sennheiser 6 series, I made a list of options within my budget (less than 150 euros) which should be driven well enough by my phone. AKG K702 and Fostex T20rp were on it but I removed them when I found out they are too insensitive, despite the low impedence. Those that remained, in order of price: Superlux HD668B Philips SHP9500 (discontinued) Sennheiser HD598/HD599 Audio Technica AD700x (no detachable cable is a big negative) Philips Fidelio X2/00 (I understand Amazon lowered its price because this model can have issues?) Beyerdynamic DT 990 Edition 32 Ohm (no detachable cable is a big negative) So... my question for you is: all the above seem to have a wide soundstage, but is it also deep?