The differences lie in the fact that the PLG5.3 is a 3-way loudspeaker versus the 2-way PLG5.2. Furthermore, the PLG5.3 comes equipped with a .5” Neodymium dome midrange (versus the no midrange PLG5.2) and a super film tweeter. The PLG5.3 also features a hi-temp alumium voice coil, a yellow coated steel basket, and a custom grill, not to mention an extra strong capacitor for superior audio performance. The Pyle Audio PLG5.3 is priced at $37.50, exactly $1 greater than its weaker counterpart, the PLG5.2.