I, too, have heard complaints about the boomy bass from this Plinius. I must agree, though with Equa, that it is probably an artifact of some other part of system or listening room (speakers on stands? carpeting? etc).
For instance, if I put my large "bookshelf" speakers directly on the carpeted floor, I get some "boominess." If they are on appropriate stands, the bass just is as deep and as clear as can be. I listen to chamber music, and the deep bass of cello, etc. is stunning. I'm hearing bass that I never heard before, and my initial reaction was somewhat negative only because I was hearing something so clearly for the first time.
For instance, if I put my large "bookshelf" speakers directly on the carpeted floor, I get some "boominess." If they are on appropriate stands, the bass just is as deep and as clear as can be. I listen to chamber music, and the deep bass of cello, etc. is stunning. I'm hearing bass that I never heard before, and my initial reaction was somewhat negative only because I was hearing something so clearly for the first time.