The JBL Club 6420 is a pair of 4×6 inch 2-way coaxial car speakers designed to replace factory 4×6 speakers. They use a Plus One polypropylene woofer cone for increased cone area and an edge-driven PEI balanced dome tweeter for clear high-frequency response.

These speakers handle 25 watts RMS and 75 watts peak power, have a nominal impedance of 3 ohms, sensitivity of 87.5 dB, and a frequency response of 75 to 20,000 Hz. They require standard speaker wiring and are intended for vehicles with compatible 4×6 mounting openings; check mounting depth and dimensions before installation.