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Down4Sound TCX 18” Subwoofer – Dual 1Ω (2700W RMS)
The Down4Sound TCX 18” D1 is the monster of the TCX lineup — built for extreme power, deep pressure, and unmatched low-end control. Featuring a 3-inch 8-layer flat aluminum coil, carbon fiber cone, stitched high-roll surround, and massive 5-stack Y35 ferrite motor, this subwoofer is designed to dominate any build.
Engineered with triple-spider suspension, a fully vented motor, and extended pole piece, the TCX 18” D1 handles huge excursion with precision and reliability. Perfect for demo vehicles, SPL builds, or anyone who wants insane low-end authority without losing sound quality.
Key Features:
-
Oversized 5-stack Y35 ferrite motor for maximum output
-
3" 8-layer flat aluminum voice coil for extreme power handling
-
Carbon fiber cone and stitched surround for long-term durability
-
Fully vented motor, gap, and backplate for consistent cooling
-
Triple-spider suspension for clean, linear cone movement
-
Extended pole piece for smooth, controlled travel
-
Designed for high-power daily or competition use
Specifications:
-
RMS Power Handling: 2700W RMS
-
Voice Coil: 3” 8-layer flat aluminum (bifilar)
-
Impedance: Dual 1Ω (D1)
-
Cutout Diameter: 430 mm / 16.93”
-
Mounting Depth: 361.95 mm / 14.25”
-
Weight: 116 lbs
-
Xmax: ~36 mm (one-way)
-
Motor Size: 240 mm / 9.45”
-
BL: 27.216 T·m
-
Resonance Frequency (Fs): 30.21 Hz
-
Sensitivity: 83.9 dB
-
Recommended Ported Enclosure: 5.5–6.5 cu ft tuned to 30 Hz
Precision Engineering:
With a BL rating of 27.216 T·m and a suspension built for long throw, the TCX 18” D1 moves serious air while maintaining accuracy. The rigid carbon fiber cone and high-roll surround allow for responsive, low-distortion performance at extreme levels.
Summary:
The TCX 18” D1 is made for those who live for pressure. It’s massive, efficient, and brutally loud — built to handle daily abuse or competition-level punishment without breaking a sweat.
| Shipping | This item ships to |
| Delivery | Estimated between and . Will usually ship within 1-3 businesses day. |
Description
Down4Sound TCX 18” Subwoofer – Dual 1Ω (2700W RMS)
The Down4Sound TCX 18” D1 is the monster of the TCX lineup — built for extreme power, deep pressure, and unmatched low-end control. Featuring a 3-inch 8-layer flat aluminum coil, carbon fiber cone, stitched high-roll surround, and massive 5-stack Y35 ferrite motor, this subwoofer is designed to dominate any build.
Engineered with triple-spider suspension, a fully vented motor, and extended pole piece, the TCX 18” D1 handles huge excursion with precision and reliability. Perfect for demo vehicles, SPL builds, or anyone who wants insane low-end authority without losing sound quality.
Key Features:
-
Oversized 5-stack Y35 ferrite motor for maximum output
-
3" 8-layer flat aluminum voice coil for extreme power handling
-
Carbon fiber cone and stitched surround for long-term durability
-
Fully vented motor, gap, and backplate for consistent cooling
-
Triple-spider suspension for clean, linear cone movement
-
Extended pole piece for smooth, controlled travel
-
Designed for high-power daily or competition use
Specifications:
-
RMS Power Handling: 2700W RMS
-
Voice Coil: 3” 8-layer flat aluminum (bifilar)
-
Impedance: Dual 1Ω (D1)
-
Cutout Diameter: 430 mm / 16.93”
-
Mounting Depth: 361.95 mm / 14.25”
-
Weight: 116 lbs
-
Xmax: ~36 mm (one-way)
-
Motor Size: 240 mm / 9.45”
-
BL: 27.216 T·m
-
Resonance Frequency (Fs): 30.21 Hz
-
Sensitivity: 83.9 dB
-
Recommended Ported Enclosure: 5.5–6.5 cu ft tuned to 30 Hz
Precision Engineering:
With a BL rating of 27.216 T·m and a suspension built for long throw, the TCX 18” D1 moves serious air while maintaining accuracy. The rigid carbon fiber cone and high-roll surround allow for responsive, low-distortion performance at extreme levels.
Summary:
The TCX 18” D1 is made for those who live for pressure. It’s massive, efficient, and brutally loud — built to handle daily abuse or competition-level punishment without breaking a sweat.
Shipping
| Shipping | This item ships to |
| Delivery | Estimated between and . Will usually ship within 1-3 businesses day. |
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