Brendy~
I have a DA3, and a DA5ES...plus my brother has a DA4, and a DA5 ES as well.
I'm sorry to disagree.....but in all four of our systems.. if you calibrate with LFE Mix set to 0....the sub is way to hot.....covers up everything....
It took me years to figure this out.....and yes you are right about DD +10 boost in the LFE channel....but I have found this way of calibration with our DA XES models to be a solution for that.....
My brother and I both have SVS subs....and more than enough Bass...
Only suggesting as expericence....not argument