Acoustic Research AR 303 loudspeaker
It's a common audiophile failing to remember the past as being much better than it actually was. (Though, of course, some things <I>were</I> better.) I remember the first time I heard a pair of Acoustic Research LST loudspeakers, in 1974 or thereabouts. Compared with the Wharfedales I used in my own system and the various Goodmans, Celestions, and home-brews I heard at friends' homes, the sound of classical orchestral recordings on the ARs was about as close to the real thing as I could imagine. And the AR ads reinforced my experience, telling me that musicians such as Herbert von Karajan also used LSTs. I never heard those speakers again, but occasionally I wonder how they would hold up today (footnote 1).