define integrated
Integrated means of one piece, whole. Its a fact. You could look it up. Bass is integrated when its impossible to tell there are subs, or even any speakers at all. Integrated is when the bass is so clean and clear and extended you are enveloped to the point where the walls of the room dissolve and you feel you are within a holographic acoustic space.
This is impossible to achieve with any one sub. The more subs you use the easier this becomes. With four or five subs it is trivially easy. Virtually any four subs located virtually anywhere in the room will get you there. No single sub located anywhere will. Not even two. More is better.
https://systems.audiogon.com/systems/8367Would be very interested to hear ieales tell us all how many four and five sub setups he has tried, in order to fully evaluate his credibility on the subject.