Elevate your car audio system with the DOWN4SOUND SB 15” Subwoofer, crafted to deliver deep, precise bass and exceptional clarity. Designed with a dual 2-ohm/4-ohm voice coil configuration and 500W RMS power handling, this subwoofer is built for high-performance setups that demand durability and top-notch sound quality.

QUICK NOTES:

• RMS Handling: 500W RMS
• Coil Size: 2.5 Inch
• Cutout Diameter: 13.62 inches / 346 mm
• Outer Diameter: 15.51 inches / 394 mm
• Mounting Depth: 8.01 inches / 203.5 mm
• Motor Height: 3.54 inches / 90 mm
• Net Weight: 46.3 lbs / 21 kg
• Gross Weight: 50.7 lbs / 23 kg
• Highly optimized suspension for accurate sound reproduction
• Designed for versatility in high-performance setups

Technical Specifications:

• Resonance Frequency (Fs): 30.87 Hz
• BL Product: 16.42 T·m
• Total Moving Mass (Mms): 271.1 g
• Suspension Compliance (Cms): 83.11 μm/N
• Effective Piston Area (Sd): 855.29 cm²
• Equivalent Volume (Vas): 91.18 L
• Sensitivity (SPL): 87.0 dB
• Qms (Mechanical Q): 4.132
• Qes (Electrical Q): 0.825
• Qts (Total Q): 0.689
• Outside Diameter: 15.59 in (396mm)
• Displacement: 0.19 cu ft

Recommended Enclosures:

• Ported Enclosure Size: 3.0 cu ft (net)
• Port Area: 44 sq in
• Port Tuning: 35 Hz
• Sealed Enclosure: Not Recommended

Why You Should Buy:

1. Powerful Low-End Performance: Delivers clean, precise bass with unmatched clarity.
2. Dual 2-Ohm/4-Ohm Configurations: Offers flexible wiring options for seamless integration with your amplifier.
3. Robust Construction: Engineered for durability and optimized for high-intensity audio applications.
4. Precision Engineering: Designed to provide superior sound reproduction, making every beat impactful.