These cabinet speakers are in excellent condition for their age. Avery Fisher voiced these speakers for classical and or chamber music, Not Rock. He intentionally rolled off the Highs on the speakers somewhere between 12K and 15K. Gave them a strong mid-rang and a mellow base. Worth mentioning, because it takes a very unique type of buyer.
If you want to learn a little more info about these speakers you can visit http://www.radiomuseum.org/r/fisher_xp_10.html.