dac pair

Hello! I have DT 990 Pro Headphones connected to FX-Audio Dac-X6, but i would like to upgrade to a better dac/amp, what do you advise? Budget max 200/250 euros Could you give me a few options, since i want to buy it from amazon.it and a lot of dac/amp aren't available there. Thanks in advance...

Guys and Gals, I have a pair of Linkwitz LXmini speakers. Existing system is BlueOS2i streamer (RCA out) to miniDSP4x2 required for LXmini (RCA out) to ATI multi-ch amp (speaker wire) to LXmini's. I've gathered that SQ could be improved by upgrading DAC (miniDSP DAC is lacking). I'm thinking...