Soundqubed HDX3 18" D1 Subwoofer | 1500W RMS
Brand : Soundqubed
- SKU:
- Soundqubed-HDX3-18D1-Subwoofer
Soundqubed HDX3 18" D1 Subwoofer | 1500W RMS – Competition-Grade Bass Power
Unleash Deep, Hard-Hitting Bass with High-Efficiency Performance
The Soundqubed HDX3 18" D1 Subwoofer is a heavy-duty, competition-grade subwoofer built for precision, power, and extreme bass performance. With 1500W RMS and 4500W peak power, this subwoofer delivers deep, controlled low-end frequencies while maintaining high efficiency and durability. Whether you're an SPL competitor or a daily driver who loves deep bass, the HDX3 18" is designed to handle serious power with ease.
Massive Power & High-Performance Design
1500W RMS / 4500W Peak Power – Handles high-output loads effortlessly.
3" Dual 1-Ohm Voice Coil – Optimized for maximum power handling and amplifier efficiency.
Fs: 27.59 Hz – Designed for deep, low-frequency extension.
Sensitivity: 90.64 dB – High-efficiency motor for powerful SPL performance.
Xmax: 36mm – Massive excursion for hard-hitting, distortion-free bass.
Built for Strength, Durability & Maximum Excursion
Thick Top Plate & High Motor Force – Delivers tight, accurate bass with high efficiency.
Cast Aluminum 4-Spoke Frame – Accommodates a larger spider for lower tuning and enhanced accuracy.
Wide Surround & Pulp-Blend Cone – Stronger, lighter, and designed for extreme excursion.
Black-Anodized Aluminum Former – Improves heat dissipation for long-lasting coil performance.
Double Slit Venting & High-Temp Resin – Provides superior cooling for extended durability.
Optimized for Maximum Cooling & Airflow
Enhanced Airflow System – Prevents overheating for high-output applications.
Precision Venting & Heat Dissipation – Ensures consistent, distortion-free bass delivery.
Recommended Enclosure & Tuning
Ported Enclosure: 5 – 7 cu ft – Designed for maximum low-end extension and deep bass response.
Mounting Depth: 10.5” – Built for high-performance enclosure setups.
Circle Cutout: 16 9/16” – Precision-fit for easy installation.
Why Choose the HDX3 18" D1?
The Soundqubed HDX3 18" D1 Subwoofer is built for bassheads, competitors, and serious audiophiles who demand deep, powerful, and competition-grade bass. With high-efficiency performance, extreme durability, and precision bass reproduction, this subwoofer ensures every bass hit is tight, controlled, and hard-hitting.
Upgrade your system with the Soundqubed HDX3 18" D1 and experience bass like never before!
Order now and bring deep, competition-level bass to your build!
Specifications
| Model | HDX310 | HDX312 | HDX315 | HDX318 |
| RMS Power | 1500 W | 1500 W | 1500 W | 1500 W |
| Peak Power | 4500 W | 4500 W | 4500 W | 4500 W |
| Magnet Weight | 300 oz | 300 oz | 300 oz | 300 oz |
| Coil Diameter | 3" | 3" | 3" | 3" |
| Coil Length | 50 mm | 50 mm | 50 mm | 50 mm |
| Usable Throw | 68 mm | 68 mm | 68 mm | 68 mm |
| Woofer Size | 10" | 12" | 15" | 18" |
| F(s) | 30.04 Hz | 26.92 Hz | 26 Hz | 27.59 Hz |
| Impedance | D1/D2 | D1 / D2 | D1 / D2 | D1 / D2 |
| Q(ms) | 4.88 | 4.95 | 4.847 | 5.777 |
| Q(es) | 0.285 | 0.3409 | 0.3665 | 0.4724 |
| Q(ts) | 0.267 | 0.3189 | 0.3408 | 0.4367 |
| V(as) | 12.98 Liters | 28.59 Liters | 78.08 Liters | 168.6 Liters |
| M(ms) | 281.4 grams | 440.9 grams | 472.8 grams | 410.9 grams |
| C(ms) | 0.074 | 0.079 | 0.082 | 0.081 |
| Sensitivity 1W/1m | 83.9 dB | 84.03 dB | 87.41 dB | 90.64 dB |
| Xmax | 36mm | 36mm | 36mm | 36mm |
| Sd | .044 m2 | 0.051 m2 | 0.082 m2 | .121 m2 |
| Displacement | 0.14³ | 0.16³ | 0.18³ | 0.23³ |
| Mounting Depth | 7 13/16" | 8 7/8" | 9 1/2" | 10.5" |
| Circle Cutout | 9 3/8" | 11 1/2" | 13 7/8" | 16 9/16" |
| Ported Enclosure (Cu Ft): | 1.25-1.75 FT³ | 1.75-2.75 FT³ | 3-6 FT³ | 5-7 FT³ |
