I can tell you that I have old (1960's) 16-ohm 416As in 816 horn cabinets in the garage. With the new passive XOs (900 Hz) I have on them now, they sound amazing. Great mid-bass sound with a solid bottom end. With a pretty wide range of source material, they perform very well. They make MP3s sound like the crap that they are, and well-engineered recordings via WAV files sound marvelous. I am running them through an old Onkyo SS amp, and can't apply more than a few watts or they're running me out of there.