Could you please explain to a poor little HS noob what a DAP is??
Also, i believe that with this setup i would still need to buy a stupid 30 pin/lightning adapter, correct?
Wrong, a DAP is a Digital Audio Player, an iPod is a DAP. The 30pin what ever that thing is, is a Line out for the iPod. Line out gives you a better source to amp from. As opposed to using apple and it's EVIL devices and software, you can try a simple Sony Clip+ which has NATIVE Flac support!
In addition if you sold your iPod [you might get like $150 for it] you would have enough for something like the Hifiman Hm 601, which is POWERFUL enough to drive a beyer Dt 990 un amped [only about $160 used] but add in an e11 and you've got more bass than you know what to do with [and the Hifiman has a Line out via 3.5mm]
Still Apple is evil so support them all you want but BE WARNED... BE WARNED lol
It would, but would you honestly be able to tell the differance is the question. You might or you might not. I'd stick with just using 3.5mm out from the headphone to the Amp to the Beyer dt 990. if you don't like it or feel there is something missing, spend the extra money WHEN you can afford to!
That too, and honestly you really need to ditch you iPod :D, get something like a Hifiman Hm 601 [pairs REALLY NICE] with the Beyer Dt 990, and it has FULL SIZE Sd card expansion slot. So you can get cheap storage, but only up to 32gb on one card [i used to carry around a couple of cards with me so not a big deal imp]
But just enjoy the headphone out and the iPod till you can afford to get a new dap, an the Hifiman has a Line out so you won't need a special cable for that, the Fiio X3 and X5 are also options as is the iBasso DX50
Strongly recommend PSB M4U 2; I have them and they are awesome. http://reviews.cnet.com/headphones/psb-m4u-2/4505-7877_7-35405855.html