I currently have a set of ATH-A900's at home. I got them around October/November and love them. I'd like to get a set of headphones relatively close to this I could use at work that wouldn't look as ridiculous as these do.
I also have a set of ATH ES55's and SJ55's I got for portable use. They're decent, but not Circumaural, which I feel I need for good isolation at work now; at least when I crank the volume up
. I've mostly been using the SJ55's at work as they're more comfortable and isolate better than the ES55's.
As far as amps, I have a FiiO E7 I use at home, and an E6 I use at work/on the go. If I really needed to I could bring my E7 back and forth between work and home, but would prefer not to.
1) Portability/size. Must be able to fold. No larger, or not much larger than SJ55's
2) Closed back for isolation. Isolation's important
3) Circumaural for comfort, should also be better for isolation than on ear.
4) Sound as close to the ATH A900 as possible in this price range while being smaller; I realize they won't sound "as good" while costing less and being smaller, but as close to them is what I'd like.
5) Comfort: Ideally don't clamp too much, but at the same time at work I usually get out of my seat/desk at least once an hour, so I guess 3+ marathon session without taking them off isn't a necessity.
6) Budget: $150 tops, maybe a tiny bit of wiggle room.
The main sets I've been looking at so far at the ATH-M50 and Ultrasone HFI 780. I like the look of the 780 better, and they're a bit smaller than the M50, but I've heard their high end can be a little harsh. I've listened to a set of Sony 7506's and more or less hated them unless I equalized them a lot. Out of the box the 7506's were way too harsh for me, made them hard to listen to after just 20-30 minutes.
The good news is I can equalize either set at work. The sound source will either be my Android tablet with Poweramp, or my Sansa E280 with Rockbox.
Is there's something other than the M50, or HFI 780 that meets this criteria and sounds closer to the A900, I'd love to know. Also, if neither the M50 or HFI 780 are going to be much of an improvement as a portable/work headphone over the SJ55 I have I'd like to know as well.
I've also thought about IEMs, namely the Klipse Image S4, but general prefer headphones for comfort. I'll probably try the S4 at some point though.