Well said, I wouldn't describe it any better..
This is what I came to love about sub woofer, the 846 is unique in a way that it does not boost the mid bass to be bass heavy, in fact I think the mid bass is even less than Tralucent 1p2 but the sub bass rumble softly in the back ground making it sound very nice. If one had heard the old Denon D5000/7000 series, the 846 would have that kind of quality (not exactly the same but similar typed).
I sometimes get a little shock with some tracks that has no bass presence in the beginning and then I thought "crab, the bass driver must have been crab out" , and then all of a sudden from no where, Booomm.. I smile with great delight!..
I thought it was just me who was getting paranoid about the driver crapping out after listening to 60s and 70s tunes all day. I thought the new bass tube design thingy had retired or went on strike (for none use abuse). But then, I have to play a bassy track just to remind myself that it's still there.