Surround sound Dark Side of The Moon at Hollywood (FL) Sportatorium would certainly be at the top of my list. At times, the sounds were circling in both directions, from stereo from the main stage, stereo in the rear, and full range speakers on either side.
Alice Cooper's current band at Fort Lauderdale's Eau Rene at the Performing arts Center, about five years ago (The tour that is shown on AXS as, "From Austin City Limits") for the music, and early Killer and Billion Dollar Babies, for the lace and bras, and general outlandishness that Rocky Horror quashed. Definitely, early 1970's Jethro Tull "Stand Up" tour from the early 1970's at Pirates World, near Hollywood, FL, and "Aqualung" the next year from West Palm Beach's Leaky Tepee, in which the band played the title song for over an hour. When the applause finally died down, Ian , then Anderson said, "For our second number...." Ike and Tina Turner from Pirates World. Frank Zappa from the "Overnight Sensation", "Apostrophe" era, and Grateful Dead's Wall of sound for the 30 McIntosh amps and a zillion JBL speakers, both from Miami Jai Alai in the early 1970's. Dead'system designed by the king of LD's Owlsey Stanley, and get this: John Curl! Yes, our great designer, John Curl.
Led Zeppelin at the Sportatorium. I could go on and on, and yes, I am wearing my t-shirt that proudly proclaims, "I may be old, but I saw the great bands." Oh yeah, The post Woodstock, 1969, 4 day Thanksgiving, Palm Beach Music and Arts Fesitival, with the Stones, Janis Joplin, Jefferson Airplane, and many many more, but hopefully with better weather. Al Hirt from his New Orleans club. Maynard Ferguson at the University of Miami in the early 1980's. Buddy Guy (Tennessee Theater and Au Renee). Dizzy Gillespie from The Bijou in Knoxville.
I could actually go on and on!