JBL 166 Horizon - the studio monitirs used in most studios for 20 years
The JBL speakers - century 100 - they had the orange covers (and black, too). I saw them at The Zoom Club in Frankfort Germany. in the 70's. 10 speakers divided in 2 stacks played loud and crystal clear! They were amazing!
So I took my amp to test them at the store (Army Audio Club store) and they sounded great! But then I saw the Studio monitors which totally blew away the others! The 166 horizon model is the same as the studio monitor - except the base is on the top for the monitors.
They are rated at 85 watts / 8 OHMS, but can handle 200 watts peak when needed. I played them at parties I had with live bands - in other part of the house - but blasting loud drowned out the band. My amp provides 110 watts RMS - bet 1/10th of a watt output is really loud enough for social events.
I returned to the states and bought Monster cable, and this is the thick stuff no longer made - but it made another great leap in sound quality!
They are high efficiency rated at (I think) 93DB at one watt at one meter. Most others were about 87 or 88DB.
They can still 'reach out and grab your belly' when you jam them with the bass. They somehow didn't keep up with technology, and now are no longer the preferred studio monitor for almost all recording studios, as they were for at least 20 years.