the PRX are simply more professional. They go lower, louder and are better built, they look less like a spaceship. The EON has a 500 watt amp the PRX 1500 watts.
If you don't care about weight and space, consider some 2nd hand passive subwoofers with an amp rack. Changes are you're going to find a beastly subwoofer setup for less money that goes louder and deeper
Technics SL1210mk2s and a Freevox DJ CLUB