1)Quad ESL
2)IMF SACM
3)B&W Nautilus
4)B&W 800 Diamond series
5)B&W Nautilus 800 series
6)Wilson Watt/Puppy
7)Meridian M1
8)Martin Logan Monolith
9)KEF 105
10)Infinity Reference Standard
Nothing impressed me more than hearing the absolutely lifelike sound of the original Quad ESL and then being told it was a design from the 50s. Uncanny. The most classic and still one of the best loudspeakers ever made. The IMF was a bold step, and is still the most memorable bass I have ever heard from a loudspeaker. Nothing so clean and powerful have I heard since. The B&W Nautilus series, commencing with their landmark functional work of art, the Nautilus, is my favorite current speaker. The Wilson Watt/Puppy is a modern classic. The Meridian M1 really opened my eyes to what a powered, electronically crossed-over speaker could do.. as clean and transparent as anything I had heard at the time. Martin-Logan brought the best of two worlds together in an elegant fashion and made a great speaker. The KEF 105 is a classic, and still their best ever. The Infinity Reference Standard was just big.. very big.. and delivered real life-sized sound.