Soundqubed HDX4 18" D2 Subwoofer | 2000W RMS
Brand : Soundqubed
- SKU:
- Soundqubed-HDX4-18D2-Subwoofer
Soundqubed HDX4 18" D2 Subwoofer | 2000W RMS – Massive Bass for Serious Systems
Extreme Low-End Power for Competition & Daily Builds
The Soundqubed HDX4 18" D2 Subwoofer is designed for deep, powerful bass with 2000W RMS and a peak power of 6000W, making it an ideal choice for competition setups and serious bassheads. Built on the legendary HDC platform, the HDX4 series enhances low-frequency response, efficiency, and durability, setting a new standard for high-performance subwoofers. Whether you’re looking to dominate SPL competitions or build a low-tuned daily driver, this subwoofer delivers ground-shaking bass with precision and power.
Unmatched Power & Performance
2000W RMS / 6000W Peak Power – Handles high-output loads effortlessly.
4" Dual 2-Ohm Voice Coil – Allows flexible wiring for maximum amplifier efficiency.
Fs: 22.8 Hz – Tuned for ultra-deep low-frequency bass response.
Sensitivity: 87.95 dB – Converts power efficiently for high SPL performance.
Xmax: 31mm – Designed for massive excursion and high-output bass.
Engineered for Durability & Maximum Excursion
Fiberglass-Reinforced Pulp Cone – Ultra-strong yet lightweight for enhanced durability.
High-Roll Surround & Large Spiders – Provides greater cone travel for extreme bass output.
Black-Anodized Aluminum Former – Improves heat dissipation for long-lasting coil performance.
American-Made Wire & Adhesives – Ensures high thermal resistance under extreme power conditions.
403 oz Magnet Structure – Delivers powerful motor force for deep, controlled bass.
Optimized for Cooling & Airflow
Cast Aluminum Basket – Enhances airflow and heat dissipation for maximum cooling.
Advanced Cooling System – Prevents overheating, allowing for extended high-output playtime.
Recommended Enclosure & Tuning
Ported Enclosure: 5 – 7 cu ft – Tuned for maximum low-end output.
Mounting Depth: 11 5/8” – Built for high-performance enclosure setups.
Circle Cutout: 16 9/16” – Precision-fit for seamless installation.
Why Choose the HDX4 18" D2?
The Soundqubed HDX4 18" D2 Subwoofer is built for serious bass enthusiasts and competitors who demand extreme low-end power and durability. With high-efficiency performance, deep bass extension, and unmatched SPL capability, this subwoofer ensures every bass hit is powerful, controlled, and distortion-free.
Upgrade your system with the Soundqubed HDX4 18" D2 and experience bass on a whole new level!
Order now and bring massive, competition-ready bass to your setup!
| Model | HDX412 | HDX415 | HDX418 |
|---|---|---|---|
| RMS Power | 2000 W | 2000 W | 2000 W |
| Peak Power | 6000 W | 6000 W | 6000 W |
| Magnet Weight | 403 oz | 403 oz | 403 oz |
| Coil Diameter | 4" | 4" | 4" |
| Woofer Size | 12" | 15" | 18" |
| F(s) | 30.95 Hz | 29.61 Hz | 22.8 Hz |
| Impedance | D1/D2 | D1/D2 | D1/D2 |
| Z(max) | 21.2 Ohms | 22.43 Ohms | 19.3 Ohms |
| Q(ms) | 3.664 | 4.047 | 4.568 |
| Q(es) | 0.344 | 0.3658 | 0.4852 |
| Q(ts) | 0.3145 | 0.3355 | 0.4386 |
| V(as) | 24.93 Liters | 55.04 Liters | 163.3 Liters |
| L(e) | 0.7672 | 0.8143 | 2.477 |
| n(0) | 0.205% | 0.372% | 0.384% |
| M(ms) | 422 grams | 500.3 grams | 616.8 grams |
| C(ms) | 0.063 | 0.058 | 0.078 |
| Sensitivity (1W/1m) | 85.22 dB | 87.81 dB | 87.95dB |
| BL | 20.84 | 21.75 | 18.4 |
| Xmax | 21 | 21 | 31 |
| Sd | 260.4 mm | 323.9 mm | 393.7 mm |
| Displacement | 0.2³ | 0.22³ | 0.32³ |
| Mounting Depth | 8 5/8" | 9 3/8" | 11 5/8" |
| Circle Cutout | 11 3/8" | 13 7/8" | 16 9/16" |
| Ported Enclosure (Cu Ft): | 1.75-2.75 FT³ | 3-6 FT³ | 5-7 FT³ |
