Is your system still Analog if you use any form of DSP?

Sound is always analog no matter what hoops it jumps through along the way. 

If you want to stay analog. You can actively or passively high pass filter your mains. This really helps integration without dsp. I have nothing against dsp.

If the main speakers are fed by an all analogue path from LP12 to speakers and the DSP is only applied to the signal going to the subwoofers it would be fair to call it an analogue system with DSP subwoofers.

It is an (audio) illusion as is everything sensed and perceived.  That allows my mind to make things good or bad. 

LOL! I see – your mind is more powerful than mine. In mine, everything that is, is perceived (esse est percipi, for you Berkeleyans out there), but the powers of my mind are unable to control perceptions of bass waves, first reflections, and background noise.

Wow sounds like a world-wide concern! If this keeps you up at night then it's a problem.