" If I didn’t already have 8 subs... "
Your eight subs intelligently distributed are probably twice as smooth as my four.
In general, the in-room smoothness goes up, and the spatial variance (variation in frequency response from one location to another) goes down, as the number of intelligently distributed sources increases. So two subs are twice as smooth as one; four subs are twice as smooth as two; and eight subs are grounds for divorce in most jurisdictions.
So I stopped at four.
Duke
Your eight subs intelligently distributed are probably twice as smooth as my four.
In general, the in-room smoothness goes up, and the spatial variance (variation in frequency response from one location to another) goes down, as the number of intelligently distributed sources increases. So two subs are twice as smooth as one; four subs are twice as smooth as two; and eight subs are grounds for divorce in most jurisdictions.
So I stopped at four.
Duke