Massive Audio SUMMO64XL 6.5” Car Subwoofer | 400W RMS Dual 4 Ohm, High-Output Mini Sub, Heavy-Duty Bass Driver, Compact Enclosure Upgrade for Powerful Low-EndBIG BASS IN TIGHT SPACES | Ultra-slim shallow mount design fits trucks, compact cars, and under-seat enclosures while delivering powerful, clean low-end output.400W / DUAL 4 OHM | Efficient power handling with Dual 4 Ohm voice coils for flexible wiring, improved performance, and optimized amplifier matching.PREMIUM BUILD MATERIALS – Pressed paper cone, reinforced rubber surround, and heavy-duty steel basket ensure durability, clarity, and long-lasting bass performance.HIGH-IMPACT BASS RESPONSE – Engineered motor structure and venting deliver deep, punchy bass with minimal distortion, ideal for sealed or custom shallow enclosures.PERFECT FOR SMALL INSTALLS – Designed for tight spaces without compromising sound, making it ideal for stealth builds, OEM upgrades, and compact subwoofer systems.











