Description:

Experience the perfect blend of power and precision with the DOWN4SOUND SB-12 Subwoofer, designed for enthusiasts who crave deep, clean bass. Featuring a dual 4-ohm voice coil configuration and 500W RMS power handling, this subwoofer is optimized for versatile setups and delivers consistent low-frequency performance. Its durable construction ensures long-lasting reliability, making it ideal for daily-driven systems and high-performance builds.

Key Features

500W RMS power handling
Dual 4-ohm voice coil design
2.5-inch high-temperature voice coil
21 mm one-way Xmax
Highly optimized suspension
Versatile design suitable for various installs

Technical Specifications (T/S Parameters)

Revc (DC Resistance): 6.130 ohm
Resonance Frequency (Fs): 29.890 Hz
Qms: 3.624
Qes: 0.602
Qts: 0.516
Mms (Moving Mass): 215.963 g
Cms (Compliance): 131.189 m/N
Rms: 0.764
Vas: 48.592 L
Sd: 510.071 cm
BL Product: 20.324 Tm
Sensitivity (SPL): 85.2 dB
Xmax: 21 mm
Displacement: 0.15 cu ft

Engineering and Construction

Optimized suspension for precise bass control
Vented motor for improved thermal management
Precision-wound 2.5-inch coil
Durable cone and surround assembly
Efficient motor design for controlled low-frequency performance

Recommended Enclosures

Ported: 1.75 cu ft (net)
Port Area: 26 sq in
Port Tuning: 35 Hz
Sealed: Not recommended

Physical Dimensions

Cutout Diameter: 10.87 in (276 mm)
Outside Diameter: 12.44 in (316 mm)
Mounting Depth: 6.81 in (173 mm)
Motor Height: 3.54 in (90 mm)
Net Weight: 22.05 lb
Gross Weight: 27.4 lb

Why You Should Buy

Reliable 500W RMS performance
Flexible dual 4-ohm wiring options
Accurate, clean low-frequency output
Durable construction built for long-term use

Ideal Applications

Ported enclosures for deep, controlled bass
Daily-driven vehicles needing accurate LF response
SUVs, sedans, hatchbacks, and trucks
Users seeking dependable, space-efficient bass performance