DOWN4SOUND - USED | SB 8" SUBWOOFER | 500W RMS | D2

Unleash the power of precise bass performance with the DOWN4SOUND SB-8 Subwoofer, crafted for car audio enthusiasts who value clean, impactful sound in a compact footprint. Featuring a dual 2-ohm voice coil configuration and true 500W RMS power handling, this 8-inch subwoofer is optimized for versatile installs, tight spaces, and high-performance daily systems. Engineered with a refined suspension and durable motor structure, the SB-8 D2 delivers reliable, accurate, and punchy bass.

Key Features

• 500W RMS power handling
• Dual 2-ohm voice coil configuration
• 2.5-inch high-temperature voice coil
• 21 mm one-way Xmax
• Highly optimized suspension
• Compact design ideal for tight installations

Technical Specifications (T/S Parameters)

• Revc (DC Resistance): 3.800 ohm
• Resonance Frequency (Fs): 37.054 Hz
• Qms: 3.098
• Qes: 0.582
• Qts: 0.490
• Mms (Moving Mass): 125.0 g
• Cms (Compliance): 139.651 μm/N
• Rms: Not specified
• Vas: 9.016 L
• Sd: 210.106 cm²
• BL Product: 14.171 T·m
• Sensitivity (SPL): 80.3 dB
• Xmax: 21 mm
• Displacement: 0.07 cu ft
• Mounting Depth: 4.98 inches

Engineering and Construction

• Optimized suspension for accurate sound reproduction
• Vented motor for cooling efficiency
• Precision-wound 2.5-inch voice coil
• Durable cone and surround assembly
• Compact motor optimized for tight-space performance