The JBL Stage2 424 is a 4 inch (100 mm) two-way coaxial car speaker offering 25 W RMS and 150 W peak power. It has a nominal impedance of 4 ohm, 88 dB sensitivity, and a frequency response of 75 Hz to 20 kHz.

The speaker is intended as a direct-fit style replacement for vehicles with 4 inch speaker openings and uses standard speaker terminals for wiring. It is designed to deliver clear midrange and treble for factory locations where space is limited.