There is a big difference {to me}, I was never a PSB fan until I heard the Imagine line, the T2 is something special as are the mini books... The T is a nice speaker too, BUT there are nicer speakers out there for the same price, on the other hand at the $3000 level the psb T2 imagines are my pick, they do a lot of things very well, they have a really nice low end, you won't believe them small drivers can dig like that, and clean, but that is the problem with towers, they are great for lows but I prefer the mids and highs from a pair of books, and you can get an amazing set of books for $2000!!!! since you are crossing the bass out with your sub, why not grab some impressive books and let the sub do its thing for the lows, you will get all the high end definition and nice mids with none of the cabinet resonance a tower can have....
Is this for ht or music