I am so glad to see someone who appreciated the Energy Connoiseur Reference 22s. It must be mid 80s to late 80s vintage. I still remember hearing that loudspeaker being driven with Sumo Andromeda III Mosfet amplifier along with other gear in the late 80s, in an audio salon 2 blocks away from the Twin Towers. The sound of the 22 was on the pair with the Infinity Kappa 9s, which says a lot. Well, I bought the Infinity BUT the sound of the 22s were forever engrained in my mind.