JBL Club 64SQ (JBLSPKCB64SQ) 6.5" Coaxial Car Speakers

The JBL Club 64SQ is a pair of 6-1/2-inch, two-way coaxial car speakers designed for direct replacement or upgrade applications. Each speaker combines a woofer and tweeter in one assembly, helping simplify installation where a factory speaker location is available. It is rated for 75 watts RMS and uses a 3-ohm nominal impedance.

These speakers are intended for listeners who want a more capable full-range speaker than a basic factory replacement. Their 93 dB sensitivity rating at 2.83V supports strong output from compatible factory or aftermarket amplification. The 48Hz–21kHz frequency-response rating covers midbass, midrange, and high-frequency reproduction within a typical door-speaker system.

The Club 64SQ uses a carbon-fiber woofer with JBL Plus One architecture. This design increases usable cone area relative to other speakers of the same overall size. The result is a larger radiating surface while retaining the standard 6-1/2-inch speaker format.

An edge-driven silk-dome tweeter handles high frequencies in the coaxial assembly. Its output level can be set to 0 dB or +3 dB, allowing the installer to adjust the treble balance for the mounting location. A Y40 ferrite magnet motor structure is used for the woofer section.

The Club 64SQ is supplied as a stereo pair with grilles, mounting hardware, a foam gasket, and multi-hole adapter rings. It can be used as a front or rear speaker upgrade where fitment permits. For the most controlled results, confirm vehicle mounting dimensions and match the speakers with an amplifier or receiver suitable for 3-ohm loads.

Key Features

• 6-1/2-Inch Coaxial Design: Combines woofer and tweeter in each speaker for a compact full-range upgrade.
• 75W RMS Power Handling: Supports 75 watts continuous power per speaker and 225 watts peak.
• Carbon-Fiber Woofer: Uses a rigid carbon-fiber cone for the woofer diaphragm.
• Plus One Architecture: Provides increased cone area within the speaker's overall size.
• Edge-Driven Silk Tweeter: Delivers high-frequency reproduction from an integrated silk-dome tweeter.
• Adjustable Tweeter Level: Select 0 dB or +3 dB output to suit the installation location.

Design & Installation

The Club 64SQ combines a carbon-fiber woofer, edge-driven silk-dome tweeter, and Y40 ferrite magnet structure in a two-way coaxial format. The package includes protective grilles, a foam gasket, plastic multi-hole adapter rings, speed clips, screws, and JBL logo badges. The speaker has an outside diameter of 158.2 mm, a 128.3 mm mounting cutout diameter, and a 51.5 mm top-mount depth.

Verify available door or rear-deck clearance before installation, especially behind the speaker mounting surface. The included multi-hole adapter rings can assist with mounting patterns, but vehicle-specific brackets or wiring adapters may still be required. Connect each speaker with correct polarity and confirm that the source unit or amplifier is compatible with the 3-ohm nominal load.