DOWN4SOUND - USED STOCK
DOWN4SOUND - USED | SB 15" SUBWOOFER| 500W RMS | D4
- SKU:
- USED-SB15D4
- Condition:
- Used
Description
YOU ARE PURCHASING A USED ITEM.
Used products are sold as-is and may show signs of prior use, including cosmetic wear, scuffs, nicks, scratches, dents, damaged packaging, missing paperwork, missing accessories, or other imperfections unless otherwise stated in the product description.
You will receive a working item at a discounted price compared to regular pricing.
*Picture does not represent the actual item*
FINAL SALE/NO RETURNS
Experience powerful, deep, and accurate bass with the DOWN4SOUND SB-15 Subwoofer, designed for enthusiasts who demand strong low-frequency output in a versatile, durable design. Featuring a dual 4-ohm voice coil configuration and 500W RMS power handling, the SB-15 D4 delivers clean, controlled bass suitable for daily-driven systems and performance-focused builds. Its optimized suspension and robust motor structure ensure reliability and consistent performance.
Key Features
- 500W RMS power handling
- Dual 4-ohm voice coil configuration
- 2.5-inch high-temperature voice coil
- 21 mm one-way Xmax
- Highly optimized suspension
- Versatile design for a wide range of installs
Technical Specifications (T/S Parameters)
- Revc (DC Resistance): 6.130 ohm
- Resonance Frequency (Fs): 31.067 Hz
- Qms: 4.301
- Qes: 0.939
- Qts: 0.771
- Mms (Moving Mass): 277.986 g
- Cms (Compliance): 94.477 μm/N
- Rms: 0.736
- Vas: 92.878 L
- Sd: 582.958 cm²
- BL Product: 18.818 T·m
- Sensitivity (SPL): 86.6 dB
- Xmax: 21 mm
- Displacement: 0.19 cu ft
Engineering and Construction
- Optimized suspension for clean, accurate bass
- Vented motor for improved heat management
- Precision-wound 2.5-inch coil
- Durable cone and surround assembly
- Efficient motor design for controlled LF performance
Recommended Enclosures
- Ported: 3.0 cu ft (net)
- Port Area: 32 sq in
- Port Tuning: 32 Hz
- Sealed: Not recommended
Physical Dimensions
- Cutout Diameter: 13.62 in (346 mm)
- Outside Diameter: 15.51 in (394 mm)
- Mounting Depth: 7.10 in (180 mm)
- Motor Height: 3.54 in (90 mm)
- Net Weight: 23.15 lb
- Gross Weight: 25.35 lb
Why You Should Buy
- Powerful, clean bass performance
- Dual 4-ohm coils provide flexible wiring options
- Durable construction for long-term reliability
- Accurate and controlled low-frequency output
Ideal Applications
- Ported enclosures delivering deep, strong bass
- Daily drivers needing accurate LF response
- SUVs, sedans, hatchbacks, and trucks
- Users wanting high output without oversized power demands
Additional Information
Category Type: |
Subwoofers |
Product Type: |
Subwoofer |
Model: |
SB |
Subwoofer Size: |
15 |
ohm: |
D4 |
Subwoofer Type: |
Dual Voice Coil |
Product Condition: |
Used |
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