5.25" Two-way Loudspeaker with Plus One® Woofer Cone and 3/4" My-Ti™ Tweeter. This is a perfect Speaker for upgrading stock dash and door locations.Plus One® (patent pending) woofer cones �The GTO528 has a cone with more surface area than that found on competing models of the same size. The benefits of Plus One cones are greater efficiency and bass output. True Four Ohm - GTO Series speakers can be safely driven by any head unit. My-Ti™ (Mylar®/titanium composite) tweeters - Stiff and light, and extremely efficient, the new JBL® My-Ti tweeters deliver the high-frequency extension of titanium domes with the damping of composite diaphragms.
