Down4Sound TCX 12" Subwoofer D1

The Down4Sound TCX 12" D1 is precision-engineered for aggressive output and long-term durability. Its 3" 8-layer flat aluminum voice coil, carbon fiber cone, stitched high-roll surround, and massive 5-stack Y35 ferrite motor deliver raw output with tight, controlled response. A fully vented motor, backplate, and pole piece provide superior thermal management so you can run full power without performance fade.

Quick Notes

• RMS Power Handling: 2700W RMS
• Coil: 3" 8-layer flat aluminum
• Impedance: Dual 1Ω (D1)
• Cutout Diameter: 283 mm / 11.14"
• Mounting Depth: 308 mm / 12.13"
• Weight: 104.3 lbs (98.77 lbs net)
• Xmax: ~35 mm (one-way)
• Motor Size: 240 mm / 9.45"
• Extended Pole Piece: Linear throw and control
• Dual Flared Pole Vent: Smooth, efficient coil cooling
• Full Basket, Gap & Backplate Venting for thermal reliability

Precision Engineering

With a BL product of 20.200 T·m and Fs of 36.451 Hz, the TCX-12 D1 hits low, clean, and consistently. The 8-layer coil increases current capacity and resists heat saturation, while the rigid carbon cone and triple-spider suspension keep the assembly stable at extreme excursion — no matter how deep you tune.

Technical Specifications

• Resonance Frequency (Fs): 36.451 Hz
• Sd: 113.411 cm²
• Mms: 507.996 g
• BL: 20.200 T·m
• Qms: 3.949
• Qes: 0.458
• Qts: 0.396
• No (Efficiency): 0.108%
• Sensitivity (SPL): 83.5 dB
• Vas: 9.179 L
• Cms: 41.047 µm/N
• Krm: 38.767 mΩ
• Erm: 0.620
• Kxm: 92.944 mH
• Exm: 0.594

Recommended Enclosure

• Ported Volume: 2.0 – 2.5 cu ft
• Tuning Frequency: 32 Hz

Why Choose the TCX 12" D1?

The TCX-12 D1 blends brute force with precision control. From the 5-stack motor to the carbon cone and advanced venting, every detail is built for high output, tight response, and long-haul reliability — perfect for both demo builds and hard-hitting daily systems.