The DOWN4SOUND TCX 12” Subwoofer D1 is a high-output, high-control subwoofer designed for the demands of daily drivers and demo builds alike. With 2700W RMS power handling and a carefully engineered motor structure, it delivers clean, forceful low-frequency output without compromise.

Featuring a 3" 8-layer flat aluminum voice coil, a lightweight carbon fiber cone, and a massive 5-stack Y35 ferrite motor, the TCX-12 D1 maintains strength, efficiency, and long-term durability even under continuous heavy load.

QUICK NOTES:

• RMS Handling: 2700W RMS
• Coil Size: 3 Inch – 8 Layer Flat Aluminum
• Impedance: Dual 1 Ohm (D1)
• Cutout Diameter: 11.14 inches / 283 mm
• Mounting Depth: 9.1 inches / 231 mm
• Weight: ~70 lbs
• Xmax: ~33 mm (one-way)
• Motor Size: 240 mm (9.45 in)
• Extended pole piece for clean, deep throw
• Dual flared pole vent for reduced coil noise and better cooling
• Full backplate and gap venting for thermal management

PRECISION ENGINEERING:
The TCX-12 D1 features a BL product of 20.200 T·m, which keeps its lightweight cone tight and responsive during high excursion. The 8-layer coil improves thermal resistance and power handling, making it ideal for daily pounding or demo abuse.

Its triple-spider suspension and oversized motor keep it stable and reliable, while the high-roll foam surround and carbon fiber cone allow it to move air fast and efficiently.

TECHNICAL SPECIFICATIONS:

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

RECOMMENDED ENCLOSURE:

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