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

IMF TLS80What's not to like about a big box, 4 way, Transmission Line speaker with response down to 20 hz?!Bought them used in the 80's, and still have them in my cave!  Powered by vintage Marantz separates from the same era. They still make me smile.

I had a set of JBL hp520 when i was about 20 years old they were over a grand each back then. $1400can . They were hexagonal and tall . With a radiation vent all the way around the top with an isobaric bandpass 8” inside . Those really cooked , were my pride and joy for some years until my ex buggered off with all my stuff. I can still hear how awesome they were in my head.   They actually sound very similar to my L7s and L100t3s which i still have. 

Great post. Looking to make a change so very useful.  As a side note, how did @ tblanka reply get through the moderator? Seems confusing about what is allowable and what is not!

Peavey QW4Fs...
Peavey QW 4F 15" Cabinet Speaker, 50Hz-18kHz Frequency Response, 100dB Sensitivity, 5600W Peak Power, 137dB Maximum SPL, Single
These speakers are intended for PA systems, but I had a chance to pick up some used at a good price from a church that was upgrading.  They aren't the traditional "audiophile" type speaker, but they gave me the greatest pleasure of any speaker I've owned when I handled the sound for Your Mamma's Big Fat Booty Band when they played at my home in 2103.  Fine times!

BD-Designs Orphean horns.  Unlimited dynamics with spot on tonal accuracy, zero honk or cupped hands syndrome.  Bert is also an awesome person!