JBL GX528 5.25" Coaxial Car Speaker (Pair)

The JBL GX528 is a 5.25-inch coaxial car speaker pair designed to deliver high-energy JBL professional sound for car audio upgrades. Featuring the patented Plus One™ polypropylene woofer cones, these speakers provide more cone surface area than typical speakers in their class, resulting in higher sensitivity and deeper bass output. The edge-driven soft dome tweeter with a proprietary tweeter deflector enhances high-frequency clarity and off-axis sound dispersion, ensuring rich and immersive audio inside your vehicle.

Built for easy installation, the GX528 speakers fit into most factory 5-inch speaker locations without vehicle modification, making them a convenient upgrade option. The speakers incorporate three-ohm DCR voice coils to extract more power from your amplifier, delivering strong output and improved efficiency. This coaxial speaker system is individually voiced by JBL experts to maintain a consistent and authentic JBL sound signature favored by audiophiles and casual listeners alike.

Durability and reliability are key features of the GX528, as these speakers undergo OEM-level testing to withstand the harsh conditions inside vehicles, including temperature extremes and vibrations. Their frequency response ranges from 65 Hz to 21 kHz, covering a wide audio spectrum for full-range sound reproduction. With a sensitivity of 91 dB and power handling of 45 watts RMS (135 watts peak), the JBL GX528 offers a solid balance of power and clarity for a dynamic in-car listening experience.

Product Highlights

• 5.25-inch (5-1/4") coaxial car speaker pair
• Patented Plus One™ polypropylene woofer cones for increased cone area
• Edge-driven soft dome tweeter with proprietary tweeter deflector
• Designed to fit most factory 5-inch speaker locations without modification
• Three-ohm DCR voice coils for enhanced power extraction
• Frequency response: 65 Hz – 21 kHz
• Sensitivity: 91 dB (2.83V/1m)
• Power handling: 45 watts RMS, 135 watts peak
• Individually voiced for consistent JBL sound signature
• Durable construction with OEM-level reliability testing
• Tweeter deflector optimizes off-axis sound dispersion
• High sensitivity for louder output with less power
• Easy installation with included mounting hardware
• Designed for clear, balanced sound with deep bass and crisp highs
• Reliable performance tested for automotive environment conditions