Description
The DOWN4SOUND TCX 18” Subwoofer D2 brings thunderous low-frequency response with advanced motor control and thermal durability. Built for demo applications and high-output systems, it features a massive 5-stack Y35 ferrite motor, oversized venting, and an ultra-strong carbon fiber cone.
At its core is a 3″ 8-layer flat aluminum voice coil, designed for high power handling and heat dissipation. Combined with a lightweight cone and extended pole structure, the TCX-18 D2 moves massive air while staying tight and controlled.
QUICK NOTES
- RMS Handling: 2700W RMS
- Coil Size: 3 Inch – 8 Layer Flat Aluminum
- Impedance: Dual 2 Ohm (D2)
- Cutout Diameter: 16.75 inches / 425 mm
- Mounting Depth: 11.0 inches / 280 mm
- Weight: ~80 lbs
- Xmax: ~36 mm (one-way)
- Motor Size: 240 mm (9.45 in)
- Extended pole piece for deep linear excursion
- Dual flared pole vent to minimize turbulence
- Full gap and backplate venting for extreme thermal control
PRECISION ENGINEERING
With a BL product of 27.216 T·m and a lightweight yet rigid carbon fiber cone, the TCX-18 D2 produces extreme output while maintaining accuracy. The 8-layer coil allows for enhanced thermal dissipation and greater current handling at high power. A precision-engineered spider system and motor structure ensure cone control even at peak excursion.
Whether you’re pushing 3k daily or demoing at max volume, the TCX-18 D2 delivers serious performance without compromise.
TECHNICAL SPECIFICATIONS
- Resonance Frequency (Fs): 30.207 Hz
- Sd: 113.411 cm²
- Mms: 620.257 g
- BL: 27.216 T·m
- Qms (Mechanical Q): 5.202
- Qes (Electrical Q): 0.598
- Qts (Total Q): 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: 5.0 – 6.0 cu ft
- Tuning Frequency: 30 Hz
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