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SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1

Name: SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1
Brand: SoundQubed
Price: 929.95 USD
Availability: OutOfStock

Product Overview The SoundQubed HDX4.2-18D1 is a competition-grade 18” subwoofer engineered for massive output, deep frequency extension, and hardcore durability. Delivering an earth-shaking 4000W RMS and 16,000W burst power, this dual 1-ohm sub is built to dominate high-output systems with force and precision. With a sensitivity of 90.4dB and a resonant frequency of 31.6Hz, it delivers powerful, accurate bass capable of shaking any vehicle to its core. Featuring a massive 402 oz magnet, oversized 4” high-temp voice coil, and a 23mm Xmax, the HDX4.2-18D1 offers extreme excursion and superior thermal handling. Perfect for ported enclosures between 5 to 7 cubic feet, the HDX4.2-18D1 is the go-to sub for serious competitors and bassheads who demand unmatched performance and reliability. Reviews (No reviews yet) Write a Review

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Updated 6/22/2026

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Frequently Asked Questions

What is the SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1?

The SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1 is a car audio equipment made by SoundQubed. View full specifications and where to buy on this page.

How much does the SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1 cost?

The SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1 typically sells for around $930 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1?

You can purchase the SoundQubed HDX4.2 Series Subwoofer 18 Inch 4" DVC 4000w/8000w D1 from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.