INDIANAPOLIS, IN (03.12.2018) – JL Audio has announced plans to introduce a marquee line of car amplifiers at the 2018 KnowledgeFest Spring Event. JL Audio will unveil their new lineup on March 16 at the opening of the exhibitor show floor in booth 502, and will host a series of educational product training sessions on the INDIANAPOLIS, IN (03.12.2018) – JL Audio has announced plans to introduce a marquee line of car amplifiers at the 2018 KnowledgeFest Spring Event. JL Audio will unveil their new lineup on March 16 at the opening of the exhibitor show floor in booth 502, and will host a series of educational product training sessions on the