Pioneer TS-ME770FC 7.7" 2-way marine car speaker

Marine-grade audio upgrade

Pioneer TS-ME770FC speakers are 7.7-inch 2-way units built for boats and open-cockpit vehicles. The mica-reinforced IMPP woofer and butyl rubber surround resist salt spray and UV, while the 13/16-inch neodymium dome tweeter adds clear treble. IPX7 certification means the drivers survive immersion, not just splashes.

Replaces worn factory drivers

Swapping tired 6.5-inch or smaller coaxials for these 7.7-inch speakers adds deeper bass down to 32 Hz and 75 watts RMS headroom for cleaner volume at speed. The jump is worth it when the old cones are cracked, the surrounds have rotted, or the system distorts at half throttle. Buyers who need more low-end authority than a single pair can deliver should plan for additional enclosures.

Direct-fit installation

Cutout diameter is 6-1/4 inches and mounting depth is 3-1/8 inches, so most existing holes accept the frames without enlargement. White Classic grilles snap on after the screws are torqued. The 4-ohm impedance matches standard marine amplifiers. Common pitfalls: forgetting to seal the mounting gasket against the bulkhead, running speaker wire through unsealed deck penetrations, and under-powering the 88 dB sensitivity drivers with a head-unit-only amplifier.