SoundQubed HDX4.2 15" Subwoofer Dual 1/2 Ohm 4000W RMS Car Audio
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Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
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Subwoofer Wiring Diagram
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The SoundQubed HDX4.2 15" Subwoofer Dual 1/2 Ohm 4000W RMS Car Audio is built to move air. SoundQubed engineered this 15" car subwoofer with a high-excursion motor and rugged suspension so it stays clean and controlled even when you push it hard.
Specifications
| Brand | SoundQubed |
|---|---|
| Model | HDX4.215 |
| Series | HDX4.2 |
| Size | 15" |
| RMS Power | 4000W |
| Peak Power | 8000W |
| Voice Coil | 4" Dual 1/2 Ohm |
| Sensitivity | 84.9 dB |
Product Overview
The SoundQubed HDX4.2-12D1 is a competition-grade 12” subwoofer engineered for relentless power, control, and elite low-end performance. Delivering a staggering 4000W RMS and 16,000W burst power, this dual 1-ohm monster is built to dominate in high-output car audio systems. With a sensitivity of 84.9dB and a low resonant frequency of 34.4Hz, it delivers clean, thunderous bass with commanding precision. A colossal 402 oz magnet, massive 4” high-temp voice coil, and 23mm Xmax allow for extreme excursion and durability.
Order from JS Ultimate Sounds for fast shipping and real SoundQubed expertise. Not sure how this fits your build? Reach out — we'll help you spec the right amp, box, or wiring to go with it.
Authorized SoundQubed dealer at JS Ultimate Sounds. Free shipping on orders $99+.
