I've heard the 80s and the 60s. The 60s are more laid back and the 80s are more revealing. Bass on the 80s is exceptional. Details that are veiled by the 60s are readily apparent with the 80s. So far, the 80s are the most impressive speaker system that I have heard within their class and slightly higher. You will not be disappointed with the 60s but if you ever hear the 80s in a 60/80 A/B test, you may get the upgrade bug.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated