PBX1-8D4 8" Subwoofer The PBX1-8D4 8" Subwoofer from the PBX-1 Series is designed for extended low-frequency response, delivering deep, accurate bass with a perfect balance of power and precision. Engineered for exceptional sound quality and durability, this subwoofer combines advanced materials and innovative design for an unmatched bass performance. Key Features Powerful Performance: Handles 300W RMS and 600W peak power for impactful, high-quality bass output. Extended Low Frequency Response: Optimized for a frequency range of 40 Hz - 400 Hz, providing tight, refined transient bass tones. High-Quality Materials: Features a polycarbonate cone with an inverted dust cap for durability, and a Parabolic Santoprene Hybrid Surround for accurate bass response. Innovative Cooling System: Equipped with Perimeter Aero-Vent Voice Coil Cooling Vents and a vented BASV voice coil former to ensure consistent performance during extended use. Versatile Installation: Designed for sealed or ported enclosures, offering flexibility to achieve your desired sound profile. Construction and Build Proprietary Non-Resonance Steel Basket: A stamped and textured steel basket reduces resonance while maintaining a lightweight and durable structure. Multi-Layer Progressive Spiders: Provides controlled bass response and enhanced durability. Compact Design: Fits into tight spaces with a cutout diameter of 7 1/8" and a mounting depth of 5.25". Specifications Size: 8 inches Nominal Impedance: Dual 4-ohm Voice Coil Size: 1.5 inches Magnet Size: 90 oz Sensitivity: 82 dB Frequency Range: 40 Hz - 400 Hz Xmax: 9 mm Power Handling: 300W RMS / 600W Peak The PBX1-8D4 8" Subwoofer offers unparalleled bass performance, blending advanced technology with robust construction. Whether you're upgrading your car audio system or building a custom setup, this subwoofer ensures powerful and precise low-frequency sound.