@erastof,I own the ProAc D48R and love them. But I have to agree with @aewarren about the placement. If you do not have much space behind and to the side of speakers then the bass boom and muddiness in the midrange will remain. They way to mitigate them are to have bass absorbers on the corners and monster panels on the wall behind where you sit. You will have to experiment with that. I think the D20R will have less bass than the DT8. But with the ribbon tweeters, it should have better clarity.