JBL STAGE3 648F 4x6" 2-Way Coaxial Speakers

The JBL STAGE3 648F is a pair of 4x6-inch coaxial car speakers designed for vehicles that use this factory speaker format. It combines a woofer and tweeter in each speaker, providing a straightforward replacement path for worn or basic factory speakers. The set is supplied without grilles for installations that retain the vehicle's original speaker grilles or trim panels.

With 60 watts RMS power handling per speaker, the STAGE3 648F can be used with a compatible factory head unit or a 4-ohm-capable aftermarket amplifier. Its 89 dB sensitivity and 50 Hz to 20 kHz frequency response support full-range front or rear speaker replacement duties. The true 4-ohm design is intended to help make effective use of available amplifier or head-unit power.

Each speaker uses JBL's Plus One woofer cone architecture, which increases usable cone area relative to conventional designs in its class. The woofer cone is reinforced with 10% glass fiber and formed with a laser-etched surface treatment. This construction is intended to support low-frequency output while maintaining a compact 4x6-inch footprint.

A PEI balanced dome tweeter handles the high-frequency portion of the coaxial design. Locating the tweeter within the speaker assembly keeps the installation simple compared with a separate component speaker system. This makes the STAGE3 648F a practical option for listeners seeking a compact two-way upgrade without adding external crossover boxes or separate tweeter mounting locations.

The Stage3 Gen2 design also incorporates post-consumer recycled plastic components, PVC-free wiring, and packaging printed with soy-based inks. Installation hardware is included, including screws, spade clips, foam gaskets, and logo badges. Confirm the vehicle's factory opening, mounting depth, wiring, and retained-grille arrangement before installation.

Key Features

• 4x6-Inch Coaxial Design: Combines woofer and tweeter in each speaker.
• 60W RMS Handling: Supports compatible factory or aftermarket amplification.
• Plus One Woofer Architecture: Provides increased cone area within the frame.
• PEI Balanced Dome Tweeter: Reproduces the speaker's high-frequency range.
• True 4-Ohm Load: Matches common car audio amplifier loads.
• Laser-Etched Glass-Fiber Cone: Uses 10% glass-fiber reinforcement.

Design & Installation

The STAGE3 648F uses a laser-etched woofer cone reinforced with 10% glass fiber, a PEI balanced dome tweeter, and post-consumer recycled plastic components. Its wiring is PVC-free, and the speakers are finished in black. No speaker grilles are included with this factory-fit-oriented version.

Use the included screws, spade clips, and foam gaskets as appropriate for the vehicle installation. Verify that the vehicle accepts a 4x6-inch speaker, that the mounting depth and terminal clearance are suitable, and that the factory wiring can be connected safely. Pair the speakers with a 4-ohm-compatible head unit or amplifier and avoid exceeding their 60-watt RMS rating per speaker.