My experiences with open baffle speakers started with the Caintuck speaker that I first observed on the Decware site, which I built and bought a pair of the least expensive Lii audio 6 inch speakers for. I wasn’t expecting much and was shocked how appealing they were to me, I later bought a pair of the F15s Which I put in a bit larger baffle and was further pleased. I had read Nelson Pass saying that he was rather enjoying open baffle speakers with no crossovers full range. That is what these were and they are surprisingly enjoyable. Lots of speed and leading edge definition And much less sensitive to sweet spot problems. They par nicely with subwoofers, but also hold their own without them. I think it is because they deliver such nice cues regarding the attack and transient qualities of the music that your mind fills in some of the missing base performance. I’ve also done a little experimenting digitally, equalizing them but tend to come back to liking their performance unaided, warts and all. Needless to say these are great speakers for small amplifiers both tube and solid-state. They are efficient and present a very easy to drive load. Maybe that is part of what makes them appealing.