Wow! I finally got to hear a DOUBLE PAIR of Ohm Fs. I was at an audio club event in New Jersey at Harry Weisfeld’s home in Holmdel, NJ. Harry owns two pair of restored Ohm F speakers, with a wooden bracket that allows the second pair to be placed, upside-down, over the first pair. They are connected in series. I had seen these before, on static display (and even saw a similar pair for sale on ebay for $10,000). I don’t have the money or the room for such a set up, nor do I have the amplifier power.
This pair of pairs of Ohm Fs sounded very good. Smooth, fairly extended, and with all of the soundstage attributes you’d expect. Sadly, the room was on the the small side for these speakers, and the amplification was a restored Marantz receiver from the 1970s. I suspect (and have heard from others who have listened to these pairs) that a larger room and more powerful amplification would have made them really sing. Still, I am glad I got to hear them.