Size is not the issue. It is the quality of the subwoofer.
Two (stereo) subwoofers is generally better; however two mediocre subwoofers is not better than one excellent one.
Since all REL's perform well, two Strata will work very very well. However, if you think someday you'd like to have two Stadium, then get one now and save up for the second one..
Second part is how good are your main speakers?? If two (or even one) Stadium outclasses your main speakers, then don't waste your money; get the two Strata..
Two (stereo) subwoofers is generally better; however two mediocre subwoofers is not better than one excellent one.
Since all REL's perform well, two Strata will work very very well. However, if you think someday you'd like to have two Stadium, then get one now and save up for the second one..
Second part is how good are your main speakers?? If two (or even one) Stadium outclasses your main speakers, then don't waste your money; get the two Strata..