Charles,

How far away will you be sitting from them? The 80s (and most probably the 60s) require at least 8 feet of listening distance. As others have mentioned, you also need to consider your listening preference. Do you like more mellow, laid back, forgiving sound or more accurate, forward and detailed?

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