Just researched for hours on end on here and head-fi, and I decided the best solution was to import the JVC SZ1000 (same as SZ2000 with small bass reduction and and slightly less veiled mids due to brass construction on a single internal component), a Fiio A3 (E11k) portable amplifier, and a Fiio X1 + 128gb Samsung MicroSD card. Also a pad change is in the works which will be harvested from a pair of JVC M55x's.
X1+A3 (E11k) seems like a good combo for only $160.
Sure the power from the A3 is similar to that on the old X3 and X5 (1st gen) internal amp, both being around $250 used, the X1+A3 combo sounded like a better option, and new.
X5 2nd gen @ $350 would really only be a side grade audio wise (SLIGHT increase probably imperceptible to me at similar power levels). Bigger screen and dual MicroSD slots would've been sweet tho.
If I was rich I would likely have gone X3 2nd gen or X5 2nd gen + E12 amp. That said, there is room for improvement down the road if this isn't good enough.
The more likely is a E12 Mont Blanc, which is a $160 upgrade and I'll keep the X1 in service should I go that route.
My only concern is how well a Fiio A3 and my on-board ALC898 will play together. I have read many a reviews that claim when shielded properly, the ALC898 competes pretty well with DACs above its own weight class. No Shiit Stack (Magni/Modi) for me until the Fiio A3 + ALC898 proves its garbage.
All that being said, I sure hope I am satisfied for closed back cans for use while gaming.
AMAZON HURRY UP!