Down4Sound TCX 18" Subwoofer 2700W RMS
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Subwoofer Wiring Diagram
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The DOWN4SOUND TCX 18” Subwoofer D2 is built for extreme output, heavy power handling, and clean low-end delivery. Featuring a 3" 8-layer flat aluminum voice coil, carbon fiber cone, stitched high-roll surround, and an oversized 5-stack Y35 ferrite motor, this subwoofer is engineered to dominate both daily systems and demo builds.
With a triple-spider suspension, fully vented motor structure, and extended pole piece, the TCX-18 D2 is optimized for long throw and sustained abuse. From punchy low bass to extended sweeps, it delivers consistent pressure without breaking a sweat.
Key Features
- 2700W RMS power handling
- Dual 2-ohm voice coil (D2)
- 3-inch 8-layer flat aluminum voice coil
- Carbon fiber cone
- ~39 mm one-way Xmax
- 5-stack Y35 heavy-duty motor
- Stitched high-roll surround
- Triple-spider suspension
- Dual flared pole vent, gap venting, and fully vented motor & backplate
Technical Specifications (T/S Parameters)
- Resonance Frequency (Fs): 30.207 Hz
- Qms: 5.202
- Qes: 0.598
- Qts: 0.521
- Mms (Moving Mass): 620.257 g
- Cms (Compliance): 39.745 μm/N
- Vas: 24.882 L
- Sd: 113.411 cm²
- BL Product: 27.216 T·m
- Sensitivity (SPL): 83.9 dB
- Xmax: ~39 mm (one-way)
- Driver Displacement: 0.31 cu ft
Engineering and Construction
- Extended pole piece for smooth, clean long-throw travel
- Dual flared pole vent and gap venting for reduced turbulence
- Fully vented backplate and motor structure for thermal control
- Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former
- Carbon fiber cone for rigidity, fast response, and reduced flex
- Built to survive high power, long sessions, and real-world abuse
Recommended Enclosure
- Ported: 5.5 – 6.5 cu ft
- Recommended Tuning: 30 Hz
- Optimized for deep, high-output low-frequency performance
Physical Dimensions (Key Installation Specs)
- Mounting Cutout Diameter (Through Cut): 16.54 in (420 mm)
- Overall Cutout Diameter (Flush-Mount Recess): 18.35 in (466 mm)
- Mounting Depth: 14.25 in (361.95 mm)
- Motor Diameter: 9.45 in (240 mm)
- Net Weight: 104.72 lb
- Gross Weight: 116 lb
Authorized Down4Sound dealer at JS Ultimate Sounds. Free shipping on orders $99+.
