Product Details Description: The 5 Core 6.5-inch Dual 4-Ohm Woofer is a powerful, compact bass solution, delivering 500W RMS and 1,000W max power. Key features include a 2-inch copper voice coil, dual Y30 magnets, and a durable aluminum frame for superior heat dissipation and strength. The rubber surround and competition-grade paper cone ensure crisp, resonant lows, while its 4+4 Ohm configuration offers versatile wiring options. Designed for everyday use and high-performance setups, this woofer combines durability, efficiency, and premium sound quality, making it ideal for audio enthusiasts and casual listeners alike. 1: HIGH SENSITIVITY - 83 ±3dB delivers loud and clear bass with minimal power consumption, making it ideal for both compact and high-powered setups. 2: OPTIMIZED COOLING SYSTEM - The TSV copper voice coil and vented design prevent overheating, ensuring consistent performance during extended use. 3: UNIVERSAL FIT - Designed to fit various enclosures, including sealed, ported, and bandpass boxes, allowing maximum flexibility for your audio setup. 4: DURABLE BUILD - Features a rugged aluminum frame and rubber edge, offering enhanced durability and ensuring consistent performance. Specifications: Size: 6.5 inch | Power: 500W RMS / 1000W Max Impedance: 4+4 Ohm | Frequency: F0-1000 Hz Voice Coil: 2” Copper | Sensitivity: 83dB ±3dB Magnet: Y30, 40 OZ, 140x40mm (2 pcs) Edge: Rubber | Cone: Paper | Mounting Depth: 106mm Basket: Aluminum | Terminal: Silver Package Includes: 1x Subwoofer | 5 Core | | 5Core 6.5 Inch Car Subwoofer Dual 4Ohm 1000W Replacement Speaker Sub Woofer-WF 6.5140 DBL D4 | Black | Best Buy