DT 990 250 ohm + FiiO E10K Best setup for my budget?

if you want open style headphones with a wide soundstage, good positional audio, very comfortable pads, bright energetic treble and suprisingly good bass for an open can the dt990 may be right for you. 140euro is significantly less than the usa price and other brands of headphones which are commonly recommended are a bit boosted in price which makes the dt990 especially appealing.

perhaps shop amazon uk.

instead of the fiio e10k (dac + amp) perhaps look at a soundcard like the creative z (if you have a desktop) which would work and give you virtual surround if you're into gaming. or, you might be able to get by with the fiio a3 (formerly called the e11). just make sure on the a3 you swap it to high gain .

there are mixed reviews. some say the dt990 is hard to drive and needs quality amplifiers while others claim they are easy. i think it depends on the volume levels you expect without distortion and whether or not you are using bass boost which can significantly change the power requirements of headphones.

i've certainly heard of people using the soundblaster z for the dt990 and are happy. there are also other people who use the e09k, e10k, e11/a3 and schiit magni.

the e10k is not bad, its just not just an amplifier. its a dac + amp (its like a soundcard, but it cannot do virtual surround only straight up 2.0). it also is not going to work for portable sources - only pc which you can use usb with. i thought if you wanted to use them portable a standalone amp might have been a better choice but you never specified your needs.

yes, that is the z.

in short: on the cheap i think you could manage with a z or the e10k sure. if you get the e10k you may need to use high gain to get the volume you want.