Kicker L7S-15 15" SoloKon DVC Square Subwoofer 4 OhmSolo-Baric L7S Subwoofer technology continues to maintain the title as the first and foremost authority on bass. It was the world’s first patented square subwoofer, supplying the extra decibels needed for deep, musical bass in a mobile audio system.
The Solo-Baric’s cutting-edge, square-sub design ultimately means more cone area, more air displacement and more decibels than a conventional round woofer. With a patented corner-ribbed, stitched Santoprene® surround helping to hold the massive motor structure in place, the Solo-Baric L7S provides durability at high excursion without compromising sound quality.
Kicker's Solo-Baric L7S features a highly-engineered motor structure that handles huge power and provides extreme output. With heavy-duty, ribbon tinsel leads intertwined with semi-progressive spider technology, the square sub promises dependability when pushed to the limit.
L7S Solo-Baric subwoofers revolve around KICKER’s most advanced cone design, the injection-molded SoloKon™, which adds targeted strength for reliable performance and accurate response. The 360°, constant-contact back bracing adheres directly to every contour of the SoloKon square cone.
Venting in SoloKon’s back-bracing and along the perimeter of the spider landing provides maximum air-flow to cool the voice coils during operation. The woofer utilizes a high-mass, extended pole piece to aid in heat dissipation. The 15" Solo-Baric L7S subwoofer conducts business in sealed enclosures from 2 to 6 cubic feet, and ported enclosures from 3 to 6 cubic feet.
Kicker Solo-Baric L7 Subwoofer User's Manual 
California Prop 65