Excerpt: Bigger in every direction than any of their rivals, with the largest (20cm) mid/bass driver than we've seen for many a while, and an elaborate horn arrangement ahead of the 26mm titanium tweeter, the Klipsch RB-81s are a substantial proposition. And at almost 14kg each, they're more likely to bow your bookshelf than sit happily upon it.
Pros: Enthusiastic, spirited and upfront sound. And punchy. Very, very punchy
Cons: A lack of neutrality, which won’t suit all types of music