The RBZ was a little farther, but wasn't as forgiving (at least to me). The R11s made a very good sound and felt very solid. I never really felt like I mishit the R11s, but can't say the same for the RBZ. Just wasn't a fan of the feel of it at all. The dispersion of the R11s was fantastic and made up for being just a tad shorter than the RBZ.