Sometimes I wonder if we need a 31 band parametric EQ.The rme ADI-2 dac is not an automatic equalization system like the various Antimodes. It has a few programmable filters but you have to set them yourself. This means that you first have to measure the in room response to find the worst peaks and then program the dac's filters to reduce those peaks. I measured in room response with the REW software and a cheap Umik-1calibrated microphone.
This DAC only has three filters below 200 Hz so it is limited to curing the worst offenders. In my case this was only necessary for the main speakers because I equalize the subwoofers with a separate Antimode 8033.
So all in all the rme dac is not nearly as convenient and versatile as an Antimode X4 but the latter costs four times more. For what it is it is exceptional quality and value.
If you already have a good dac the better minidsp units would be an alternative.
And Alan is right that this is all about the room. My room is quite large so I only have serious issues below about 120 Hz, the Schroeder frequency of this room. In a smaller room the issues would extend up to perhaps 200 Hz.