Currently I am using some low-end speakers + sub that I picked up for pretty much nothing ($30). They are Gateway computer speakers (don't know the model) and a Pioneer SW-8. Just thought I would mention that for some background.
In terms of headphones (really headset) I have Astro A40s + Mixamp, but those are mainly used for Xbox and I have never really considered them for anything else.
Other than that I have a pair of Shure se215 IEMs, which I love for listening out in public.
I also have a Fiio E7 which I use for all listening from my laptop, whether that be headphones or speakers.
I have been reading reviews, and it seems that generally people like their Sennheiser HD598s. A real attention grabber is the constant mention of the comfort. I am often at my computer for long periods of time working and IEMs can get uncomfortable over such a long duration. For gaming users also say they seem to be sufficient. I am not too picky on my game sound unless I am playing competitively, in that case my Astros are fine.
The only complaint I have heard is that the bass is a bit weaker, which is mainly why I am here. I listen to a lot of different genres, but generally the main focus is classic rock, alternative, lighter pop (not bass heavy), Nujabes type hiphop/jazz, and techno/house/minimal. Now from my readings it seems that most of that is perfect for the 598s, except the last one. I wouldn't consider myself a bass nut by any means. Dubstep isn't my thing and I just don't understand today's rap. The only time when I really want bass is when I'm in the "party mood". That being said, would they work for techno (with a bit more of a concentration in minimal) for more casual listening? While bass is generally important for this genre, I still really like listening to the highs and mids. I am concerned from some reviews that the bass is too lacking to even be okay in this genre.
Your thoughts would be much appreciated!