Digital Room Correction For Speakers

I recommend Dirac Live. It's available in various products, as standalone computer software, and the most cost effective and flexible solution tends to be the miniDSP products. The newer SHD series can also be used to precisely integrate subwoofers, routing, and provide active crossover functionality.

The problem with this approach is the best it can do is flatten response at one location. But this comes at the cost of worse response at other locations. Not to mention all the problems inherent in equalization itself.

By far the better approach is to take whatever money you're thinking of spending on EQ and treat the room and speakers with HFTs. 

When I couldn’t get decent bass from my revel salon2’s I knew my room was a stinker and the experts said the only solution was multiple subs to eliminate the nulls. What about ARC? 

I gave up on conventional speakers and bought a pair of DSP8000’s and it works so digital room correction should work for you 

Minidsp 2 channel units like the DDRC22D or the surround units like the NanoAVR DL are quite easy to use and Dirac Live is currently the most advanced room correction available.

If you have bass nulls in your listening position, no amount of room correction can make it any better.  All room correction can do is tame any excess bass response from the room.

If you have more than a 6~ dB null at any given frequency, and you try to lift that, you will only destroy your speakers and get little to no more bass.  They’ll only be working harder.