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SoundQubed HDX4.2 Series Subwoofer 12 Inch 4" DVC 4000w/8000w D2

Name: SoundQubed HDX4.2 Series Subwoofer 12 Inch 4" DVC 4000w/8000w D2
Brand: SoundQubed
Price: 799.95 USD

Product Overview The SoundQubed HDX4.2-12D2 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 2-ohm monster is built to dominate in high-output car audio systems. With a sensitivity of 85.1dB and a low resonant frequency of 35.6Hz , 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. Housed in a reinforced steel frame, the HDX4.2-12D2 is the go-to choice for serious competitors and bassheads who demand maximum performance without compromise. 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)

35.6 Hz

Excursion

X_max(Linear excursion)

23 mm

Sensitivity

SPL₀(1W/1m)

85.1 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 12 Inch 4" DVC 4000w/8000w D2?

The SoundQubed HDX4.2 Series Subwoofer 12 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 12 Inch 4" DVC 4000w/8000w D2 cost?

The SoundQubed HDX4.2 Series Subwoofer 12 Inch 4" DVC 4000w/8000w D2 typically sells for around $800 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 12 Inch 4" DVC 4000w/8000w D2?

You can purchase the SoundQubed HDX4.2 Series Subwoofer 12 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.