You need great speakers to turn the audio signals from your car stereo into music. The Evolution™ TR series speakers take advantage of JL Audio's extensive research and obsessive testing to deliver excellent performance at prices any audio enthusiast can afford. Evolution™ TR speakers come in a wide range of sizes so you can improve the sound in almost any vehicle.

JL Audio's TR400-CXi 4" speakers use mica-filled long-excursion polypropylene woofers for enhanced upper bass response that'll really fill out your drums and guitars. The 1/2" woven textile dome tweeters broadcast all the little details that bring your music to life. Ferrofluid cooled tweeters and butyl rubber surrounds mean that these speakers will bring you great music for many years to come.