JBL Stage3 6427 Car Speaker

JBL Stage3 6427 4x6" (2-way) coaxial speakers with reliable everyday playback, high sensitivity and 3Ω impedance to leverage the power of the original systems, and a direct upgrade to the 4x6 positions common in several models.

Features

• Plus One™ Polypropylene Cone: Larger cone area for cleaner bass and improved response.
• Edge-Driven Tweeter: More detail and smoothness in high frequencies.
• Sensitivity ~91 dB @2.83V/1m: Clear sound even with a standard head unit.
• 3Ω Impedance: Better fit for agency systems and better utilization of available power.
• Convenient Installation Design: 4" x 6" dimensions are common in dashboard and door/side panel locations.

Technical specifications

• Size: 4x6 inches (100x152 mm)
• Type: Bidirectional Coaxial
• Nominal Power (RMS): 35W
• Peak Power: Up to 175W
• Sensitivity (2.83V/1m): ≈ 91 dB
• Nominal impedance: 3 ohms
• Frequency response: ≈ 75Hz – 20kHz

Product Contents

• Pair of 4x6" speakers (left + right)
• Basic accessories/mounting screws + user manual
• Note: This model often comes without a front grille (depending on the batch)

Common installation locations

• Center of the dashboard or corners of the dashboard: Common in a number of cars (especially some American models).
• Front/Rear Doors: On vehicles with a 4x6 opening.
• Quarter Panels: On some sedans/SUVs.

Tech Complex Technical Team Opinion

Conclusion: The Stage3 6427 is well suited for enhancing clarity in 4x6 in-dash/door locations, works efficiently on the head unit, and does not require an amplifier for everyday use.

• We recommend focusing on the front for the soundstage, while using the rear as a light rear fill to fill the cabin.
• Professional fit with light padding enhances bass quality and reduces resonance.

Official documents from JBL/Harman

• Specification Sheet – Stage3 Series (Includes 6427)
• User/Installation Manual – Stage3 (includes page 6427)

Support and assistance

For technical inquiries, please contact technical support.

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