Upgrade your factory audio with the Ground Zero Sound Upgrade GZCS 8.7CX, a compact 3.4-inch coaxial speaker pair designed for clear, balanced sound in a wide range of vehicles. Part of the Sound Upgrade series, this 2-way coaxial setup combines a coated paper woofer with a 13 mm Mylar tweeter to deliver improved detail, stronger midrange presence, and crisp high frequencies from a speaker built for straightforward installation.

With a 50W RMS power rating and 90W max handling, these speakers are ideal for replacing tired factory units where space is limited but sound quality still matters. The 88 dB sensitivity and 4 Ohm impedance make them a practical match for many OEM and aftermarket head units, while the integrated crossover helps ensure smooth speaker performance without the need for extra components. A resonance-free steel basket, rubber surround, and fixed tweeter design add durability and help maintain consistent sound output over time.

At just 43 mm mounting depth and 77 mm mounting diameter, the GZCS 8.7CX is engineered for versatile fitment in vehicles that require a compact speaker solution. Whether you are looking for a simple front speaker upgrade or a reliable replacement for factory fit speakers, this pair offers an easy way to add cleaner vocals, better clarity, and more enjoyable everyday listening.

Features & Benefits

• Sound Upgrade series design for improved factory audio performance
• 2-way coaxial speaker layout for balanced full-range sound
• Compact 3.4-inch size suits a variety of vehicle applications
• Integrated crossover simplifies installation and system matching
• Mylar tweeter and coated paper cone deliver clear highs and natural mids
• Durable steel basket and rubber surround support long-lasting use