I have 18 inch QSC's and 18 inch Yamahas all heavy with casters on the back, I have never lifted them they roll out of the trailer and into the venue nearly every venue is required to be handicap accessibleEV zxa1 12" sub is 46lbs, 700w
ev ekx15 15" is 57 lbs, 1300w
elx 18 is 70lbs.
the etx18, top of the line, is 114lbs..but some of that is the included casters. They're really not that heavy to deal with - I can load them in and out of my car, set one on top of the others - and believe me i can't dead lift 114lbs.
The 12" speakers you have to lift - into /out of the car, onto/off the dolly - so while they are lighter the amount of weight you move, need to move, isn't that different.