The DOWN4SOUND TCX 18” Subwoofer D2 is built for extreme output, heavy power handling, and clean low-end delivery. With a 3″ 8-layer flat aluminum coil, carbon fiber cone, stitched high-roll surround, and oversized 5-stack Y35 motor, this sub was engineered to dominate.
With its triple-spider suspension, fully vented motor structure, and extended pole piece, the TCX-18 D2 is optimized for long throw and daily or demo durability. From punchy lows to extended sweeps, it delivers consistent pressure without breaking a sweat.
QUICK NOTES:
- RMS Handling: 2700W RMS
- Coil Size: 3 Inch – 8 Layer Flat Aluminum
- Impedance: Dual 2 Ohm (D2)
- Cutout Diameter: 430 mm / 16.93 in
- Mounting Depth: 361.95 mm / 14.25 in
- Weight: 116 lbs (104.72 lbs without packaging)
- Xmax: ~36 mm (one-way)
- Motor Size: 240 mm (9.45 in)
- Extended pole piece for smooth, clean travel
- Dual flared pole vent and gap venting
- Fully vented backplate and motor
- Super High Performance 3″ 8-layer flat wire voice coil (bifilar) – 0.3mm anodized ALU former – winding width spec for 3.2″ (81mm) +/- 2mm
PRECISION ENGINEERING:
With a BL of 27.216 T·m and a suspension optimized for long stroke, the TCX-18 D2 controls massive air movement while preserving clarity. The 8-layer coil resists heat saturation and delivers real power in sustained high-output applications.
Its carbon fiber cone is lightweight and rigid, allowing fast response without flex — ideal for both musical accuracy and SPL performance.
TECHNICAL SPECIFICATIONS:
- Resonance Frequency (Fs): 30.207 Hz
- Sd: 113.411 cm²
- Mms: 620.257 g
- BL: 27.216 T·m
- Qms: 5.202
- Qes: 0.598
- Qts: 0.521
- No (Efficiency): 0.139%
- Sensitivity (SPL): 83.9 dB
- Vas: 24.882 L
- Cms: 39.745 μm/N
- Krm: 37.601 mOhm
- Erm: 0.553
- Kxm: 108.551 mH
- Exm: 0.623
RECOMMENDED ENCLOSURE:
- Ported Box Volume: 5.5 – 6.5 cu ft
- Tuning Frequency: 30 Hz
