Once in a while I’ve mentioned a Heathkit floorstanding loudspeaker system from the 1950’s that I grew up around, my father having built one the year I was born. Driven by a 25 watt Williamson designed mono tube amplifier, the 15” woofer, 8” low-mids, approximately 2”x6” upper-mids horn, and small horn tweeter combination sounded exceptional in its day and is still in demand by a few enthusiasts. Check out the images on the already ended eBay auction item number 5859709103 while they are still visible. Note the winning bid price!

Edit: the same kind of amplifier sold recently also, listing number 5859700499 .