I use DSP, external to my speakers, and through my Anthem STR Stereo Preamp. It has onboard Anthem Room Correction (ARC), and customizable bass manager for mono or stereo sub outs. Anthem Room Correction is all the treatment my room will get and it benefits from it, especially integration of my two subwoofers and stand mount speakers.
I can switch to direct and not use ARC but I lose bass management. I prefer the results with ARC and bass management to pure direct mode.