I had their original series Bose 501s in my college dorm and although they had some real limitations - for the $250 I paid (used) they had a great soundstage in a small room and served the purpose at the time. The Bose 901s used too much reflected and not enough direct sound for my taste. I listened to them back in the day around the one and only time I heard Ohm F's. My buddy's parents had 901's with the active equalizer, McIntosh for power and a high end turntable. Within a month or so of hearing their system I listened to the Ohm F's at a tech Hi-Fi store. They demo'd them with the grilles off. I was sold on the sound and the pair I just acquired.... 39 years later... sound just as good to me as when I first heard that sound. That was a great article on Bill LeGall - sounds like an amazing guy. Apparently he was only doing one set of F's per year and now no longer does them at all. The seller I dealt with lives 20 minutes away from Bill and bought them directly from Bill so I know the provenance is legit.
I repositioned them yesterday to be across the 14.5 foot long wall and they are now roughly 21" in (at the base)from the back and side walls. The only material I threw at them that was problematic was Shirley Horn's album "The Main Ingredient." Steve Novosel's acoustic bass lines were going so deep that I was getting funky resonance from the hardwood floors and the bass was crazy boomy (played a dozen or more other albums over the weekend and this was the only one where it happened. Today I bought a couple of 18" square concrete pads (look like stone but are cast concrete.) Painted them satin black, put self adhesive furniture "Super Sliders" on the bottoms and put the speaker bases and cabinets on top. Boominess is gone and the bass on Shirley's disc. although to still goes insanely deep, is taut and controlled. An audio forum I perused suggests to use two of these pads with a barely inflated inner tube between them (just enough air so that it forms a 5mm gap between them when the top pad and speakers are in place. Not sure I'll even bother with that - the improvement is so dramatic with the single pad. That being said... I think I need to start trying some homemade tube traps etc. and see what else will improve this already stellar sound.
I repositioned them yesterday to be across the 14.5 foot long wall and they are now roughly 21" in (at the base)from the back and side walls. The only material I threw at them that was problematic was Shirley Horn's album "The Main Ingredient." Steve Novosel's acoustic bass lines were going so deep that I was getting funky resonance from the hardwood floors and the bass was crazy boomy (played a dozen or more other albums over the weekend and this was the only one where it happened. Today I bought a couple of 18" square concrete pads (look like stone but are cast concrete.) Painted them satin black, put self adhesive furniture "Super Sliders" on the bottoms and put the speaker bases and cabinets on top. Boominess is gone and the bass on Shirley's disc. although to still goes insanely deep, is taut and controlled. An audio forum I perused suggests to use two of these pads with a barely inflated inner tube between them (just enough air so that it forms a 5mm gap between them when the top pad and speakers are in place. Not sure I'll even bother with that - the improvement is so dramatic with the single pad. That being said... I think I need to start trying some homemade tube traps etc. and see what else will improve this already stellar sound.