All speakers benefit from subs in varying degrees. Even speakers with capable sub bass modules at there bases. I agree with subs enhancing and increasing sound stage and all frequencies adding detail and putting more air between instruments. And the more room modes you can activate the more evenly distributed bass and flatter response becomes. But don’t expect a sub or multiple subs to perform miracles if room acoustics are inhospitable, thats at least half the challenge of acquiring well tuned bass thats tight and natural. Another point worth mentioning again is trying to practice some resistance its much too easy to introduce too much bass. Often listeners will go overboard on gains then wonder why they aren’t happy with end results. Just because its there doesn’t mean you have to use it. Less gain is usually more in terms of over all sound quality. Your less likely to start burying other frequencies or pushing the listening environments capabilities or carrying the sub nearer to its distortion levels where it starts becoming more obvious. One more reason I prefer using more than one sub and as many as 4...5..6?? If you have the space to go crazy I say do it.