those are mini speakers. I don't know if anyone here had ever been to the original Fillmore (1954-1968) but the ceilings in the main ballroom were like 50 or 60 ft high. The stage was like 7 or 8 ft off of the main floor and was probably 40 ft wide and Cream's setup had two banks of two speakers each on each side of the stage that sat on the stage and I swear were only 10 or 12 ft from the ceiling. They were Huge! I'm not kidding when I say that I literally couldn't hear for 2 days after that concert. Clapton was amazing...8/24/1967. They were there from 8/22 to 9/2 and I had fleeting thoughts of going again but my ears told me, "no, don't do it"

Nostalgia Rocks!