JBL Alpha 603M6.5" 3-Way CoaxialCar

JBL Alpha 603M — 6.5" (16cm) 3-way coaxial car speaker with polypropylene cone and rubber surround, delivering a wider frequency range than standard 2-way coaxials in the common 6.5" OEM format.

The Alpha 603M adds a dedicated midrange driver to the woofer and tweeter configuration in a single 6.5" unit, improving vocal clarity and providing a smoother frequency transition compared to 2-way alternatives. Frequency response of 55Hz–20kHz covers the full audible range typical of a car audio environment. The polypropylene cone and rubber surround combination is well suited to automotive temperature and humidity conditions for long-term reliability. Mounting hardware is included for straightforward installation.

3-way coaxial design for improved midrange and vocal clarity

6.5" (16cm) format — common OEM replacement size

Application: Car audio, OEM speaker replacement