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SoundQubed HDX4.2 Series Subwoofer 15 Inch 4" DVC 4000w/8000w D2

Name: SoundQubed HDX4.2 Series Subwoofer 15 Inch 4" DVC 4000w/8000w D2
Brand: SoundQubed
Price: 849.95 USD

Product Overview The SoundQubed HDX4.2-15D2 is a competition-grade 15” subwoofer engineered for extreme power, deep bass response, and uncompromising performance. Delivering 4000W RMS and a staggering 16,000W burst power, this dual 2-ohm monster is built for high-output systems that demand thunderous low-end authority. With a sensitivity of 88.5dB and a resonant frequency of 33.9Hz, it produces clean, controlled bass with serious impact. A massive 402 oz magnet, oversized 4” high-temp voice coil, and 23mm Xmax ensure aggressive excursion, excellent thermal handling, and long-term reliability. Designed for ported enclosures between 3 to 6 cubic feet, the HDX4.2-15D2 is a top-tier choice for competitors and bass enthusiasts who refuse to settle for anything less than elite performance. Reviews (No reviews yet) Write a Review

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Thiele-Small Parameters

Measured at small signal levels per AES standards

Electromechanical

F_s(Resonant frequency)

33.9 Hz

R_e(DC resistance)

2 Ω

Excursion

X_max(Linear excursion)

23 mm

Sensitivity

SPL₀(1W/1m)

88.5 dB

Power Handling

P_e(RMS power)

4000 W

Parameters measured per AES2-1984 (r2003) standards. Small-signal parameters valid within linear operating region.

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Updated 6/22/2026

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Frequently Asked Questions

What is the SoundQubed HDX4.2 Series Subwoofer 15 Inch 4" DVC 4000w/8000w D2?

The SoundQubed HDX4.2 Series Subwoofer 15 Inch 4" DVC 4000w/8000w D2 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 15 Inch 4" DVC 4000w/8000w D2 cost?

The SoundQubed HDX4.2 Series Subwoofer 15 Inch 4" DVC 4000w/8000w D2 typically sells for around $850 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 15 Inch 4" DVC 4000w/8000w D2?

You can purchase the SoundQubed HDX4.2 Series Subwoofer 15 Inch 4" DVC 4000w/8000w D2 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.