SoundQubed HDX4.2 18" Subwoofer Dual 1/2 Ohm 4000W RMS Car Audio
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Subwoofer Wiring Diagram
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Want bass you can feel in your chest? The SoundQubed HDX4.2 18" Subwoofer Dual 1/2 Ohm 4000W RMS Car Audio delivers. This SoundQubed 18" car subwoofer pairs serious power handling with a stiff cone and oversized coil for loud, accurate low-frequency output.
Specifications
| Brand | SoundQubed |
|---|---|
| Model | HDX4.2-18 |
| Series | HDX4.2 |
| Size | 18" |
| RMS Power | 4000W |
| Peak Power | 8000W |
| Voice Coil | 4" Dual 1/2 Ohm |
| Sensitivity | 90.4 dB |
Product Overview
The SoundQubed HDX4.2-18D2 is a competition-grade 18” subwoofer built to deliver crushing bass, unmatched power handling, and long-term reliability. Rated at 4000W RMS and 16,000W burst power, this dual 2-ohm powerhouse is engineered for high-output systems that demand deep, clean, and punishing low-end. With a sensitivity of 90.4dB and a resonant frequency of 31.7Hz, it offers efficient, ground-shaking performance with impressive clarity. A massive 402 oz magnet, 4” high-temp voice coil, and 23mm Xmax allow for extreme excursion and heat dissipation.
Get it shipped quick from JS Ultimate Sounds, your go-to for SoundQubed car audio. Need a hand matching subs, amps, and enclosures? Our team builds systems for a living and we're happy to help.
Authorized SoundQubed dealer at JS Ultimate Sounds. Free shipping on orders $99+.
