Down4Sound DBZ 18" Subwoofer 1300W RMS
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Subwoofer Wiring Diagram
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The DOWN4SOUND DBz-18 D4 is engineered for listeners who want massive bass output, rugged construction, and unbeatable value. With a true 1300W RMS rating, this 18-inch subwoofer delivers deep, aggressive low-frequency performance suited for daily-driven systems and high-output builds. Featuring a dual 4-ohm voice coil configuration and a real carbon fiber dustcap, the DBz-18 D4 offers wiring flexibility, long-term durability, and powerful bass response.
Key Features
- 1300W RMS power handling
- Dual 4-ohm voice coil design
- 2.75-inch high-temperature voice coil
- 30 mm of Xmax
- Real carbon fiber dustcap
- Advanced motor venting
- Heavy-duty motor structure
Technical Specifications (T/S Parameters)
-
Revc (DC Resistance)
6.050 ohm -
Resonance Frequency (Fs)
30.810 Hz -
Qms
2.745 -
Qes
0.620 -
Qts
0.506 -
Mms (Moving Mass)
481.756 g -
Cms (Compliance)
48.844 μm/N -
Rms
0.780 -
Vas
101.023 L - Sd: 120.887 cm²
-
BL Product
31.152 T·m -
Sensitivity (SPL)
89.5 dB -
Xmax
30 mm -
Displacement
0.21 cu ft
Engineering and Construction
- Extended pole piece
- Rear gap and pole venting
- Long-fiber spider system
- Precision-wound 2.75-inch coil
- Carbon fiber dustcap
Recommended Enclosure
-
Sealed
3.5 cubic feet -
Ported
4.5 cubic feet -
Recommended Tuning
32 Hz -
Recommended Port Area
54 to 68 square inches total
Physical Dimensions
-
Cutout Diameter
16.81 in (427 mm) -
Mounting Depth
9.96 in (253 mm) -
Outside Diameter
18.47 in (469 mm) -
Motor Diameter
16.61 in (422 mm) -
Net Weight
34.2 lb -
Gross Weight
38.5 lb
Why You Should Buy
- Deep, powerful low-frequency performance
- True 1300W RMS output
- Flexible wiring
- Durable construction
- Carbon fiber dustcap
Ideal Applications
- Daily-driven deep-bass systems
- Ported or sealed enclosures in SUVs, trucks, hatchbacks, and sedans
- Systems tuned in 28–35 Hz range
- SQL-style daily builds
- Users seeking high output at an affordable price
Authorized Down4Sound dealer at JS Ultimate Sounds. Free shipping on orders $99+.
