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JBL CS7 Series speakers are the no-brainer upgrade for those who want a little more rock for their ride. They?re easy to install, feature external crossover housing, fit practically any stock size, and can be driven by any factory head unit. And with Plus One? woofer cones you?ll get the power of a home audio system in the private listening confines of your car.
Plus One? Woofer Cones
Harman?s patented (US patent #7,548,631) Plus One? polypropylene cones provide more overall speaker cone area than other cones in its class ? the result is higher sensitivity, increased low-frequency output and greater musical character.
For most brands, off-the-shelf speakers and a cursory approval of frequency response curves are good enough. That?s not the case with JBL. We don?t only listen to our speakers against the competition ? we voice them against each other to ensure each line has the consistent JBL sound signature that?s known
OEM-Level Reliability Testing
JBL tests every speaker design to the same rigid specifications as the automakers, subjecting them to extreme conditions that would break lesser speakers. We freeze them, bake them, shake them, blast them with ultraviolet light and drive them at full power for days to make sure your audio investment lasts for years.