What is the most FUN pair of speakers you've ever had and why?

My first were the most fun: Utah speakers that I mail-ordered from the Allied Radio catalog in 1969. I remember my excitement when I picked them up at the Railway Express Agency terminal, and was very pleased with the sound when I hooked them up. They were stolen, along with my Marantz Model 25 receiver and other gear. I think they were Model WD-90, as they looked just like a pair of that model now on the big auction site.

My realistic sta235b receiver 55 stomping wpc and a pair of bose 901 vI. That was my last system before being turned on to hifi. I loved playing air guitar to that system.

ADS l810 speakers and the Braun 810 speaker's were fun fun fun as I had no T-Bird. The Phase linear amp may have something to do with it. Ignorance was bliss.

Not so much the speaker but the time. Girls, parties, music. Home-made 40" high plywood reflex cabs with 12" McKenzie full range drivers driven by a 70watt KT88 amp. LOUD.

A  DIY pair using JBL midrange and woofers plus Altec tweeters.  Picked up the drivers at an estate auction and built the cabinets in a local hobby shop. .  Didn't know too much about crossovers. but built several sets.  This was in the very early days of stereo, and I had loads of fun experimenting and learning. (This was well before the Thiele/Small parameters were published.)   Grandson has the JBL and Altec drivers, but hasn't asked me to listen to anything he's doing with them.   Oh Well.