I don't know what else can be improved to this dap/LOD/amp combo. It strikes the best balance and sounds as fuk'ing good as it can be to my ears for anything I throw at it. I still kept ipods with other caps just to remind me how special these greens are. Out of those there is a close 2nd, but the rest (including once my favorite Kemet) are now distant behind. If there is anything I have learned from DIY - that is - do not just follow the herd. Go beyond, try unconventional or even defying "theory".
Once I put in a 256GB CF card, I am gonna call it a day. I admire the guys who have the desire/drive to upgrade and try new gears, I simply lost appetite as far as in-ear audio using earphones. Perhaps I don't believe there will be much room or even any room left for improvement from what I have. With that said, I reserve the right to buy and sell.
The one thing I hate about ipod videos tho is how CHEAP that the internals are. I've modded several with battery's, cf cards, screens, front and back plates, clickwheels ect. And it's usually the logic boards that break easy, the biggest pita is when the middle button breaks. No I don't mean get stuck I mean break. The middle button clicks fine but nothing happens
Very cheaply made but very nice sound so it's really a passion thing that I still keep messing with them. Anyway that's my 2 cents