SoundQubed

SoundQubed HDX3 15" Competition Subwoofer 1500W RMS D1 or D2

$499.95 USD

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Ohm Load D1 D2

SoundQubed HDX3 15" Competition Subwoofer 1500W RMS D1 or D2

Sold by AudioSellerz.com

The SoundQubed HDX3 15" Competition Subwoofer 1500W RMS D1 or D2 is a SoundQubed HDX3 15-inch car audio subwoofer for a properly matched car audio bass system. The product title lists 1500 watts RMS. It is offered in Dual 1 Ohm and Dual 2 Ohm voice-coil options according to the title.

Use this page to compare the exact model, size, RMS rating, voice-coil options, enclosure requirements, wiring plan, and electrical support before ordering. The original specifications and product details remain below.

Original Product Details and Specifications

If you want a 15" subwoofer that can bring real low-end authority while still staying efficient and controlled, the SoundQubed HDX3 15 is built for that kind of setup. This heavy-duty competition subwoofer is made for customers who want strong bass, serious output, and a subwoofer that can make the most of real amplifier power. With a made in the USA dual voice coil and a design focused on efficiency, control, and cooling, the HDX3 15 is a strong choice for hard-hitting daily systems and serious bass builds alike.

The HDX3 can handle 1500 watts RMS and 4500 watts peak power, giving you a strong balance of real power handling and serious output potential. SoundQubed built this series with a thick top plate, high motor force, and a tight gap for high-efficiency speaker design. The taller 4-spoke cast aluminum frame makes room for a larger diameter spider for lower tuning and greater accuracy, while the larger spider roll profile helps achieve low-frequency performance without giving up power handling or control.

This subwoofer also uses a taller and wider surround for more precise excursion, stronger pulp-blend cones that are lighter than earlier fiberglass-laminate designs, and a thicker, more robust aluminum former with black anodizing. Double slit venting and a higher temperature resin are also part of the design, helping improve cooling, performance, and long-term durability when the system is pushed hard. If you are shopping for a 15" competition subwoofer, SoundQubed 15" sub, HDX3 15, or a dual voice coil SPL-style woofer that can play low and stay strong, this one checks the right boxes.

For system design, the HDX3 15 is offered in D1 and D2 versions and uses a 3" voice coil, 300 oz magnet, 68 mm usable throw, 26 Hz Fs, and 87.41 dB sensitivity. That gives you the kind of hardware and efficiency needed for strong low-end response in a serious enclosure and amplifier setup.

Specifications

Specification: Details
Brand: SoundQubed
Series: HDX3
Speaker Size: 15"
Subwoofer Type: Competition dual voice coil subwoofer
RMS Power Handling: 1500 watts
Peak Power Handling: 4500 watts
Impedance Options: D1 or D2
Magnet Weight: 300 oz
Voice Coil Diameter: 3"
Coil Length: 50 mm
Usable Throw: 68 mm
Fs: 26 Hz
Zmax: 63.8 ohms
Qms: 4.847
Qes: 0.3665
Qts: 0.3408
Vas: 78.08 liters
Le: 2.711
Mms: 472.8 grams
Cms: 0.082
Sensitivity: 87.41 dB
n0: 33.96%

Match This SoundQubed Subwoofer to the Amplifier and Enclosure

A subwoofer money page must connect the woofer to the rest of the bass system. Match the verified RMS power handling and voice-coil configuration to a stable amplifier load. Then confirm the enclosure type, net air space, tuning, port area, mounting depth, cutout, subwoofer displacement, available vehicle space, speaker wire, and electrical support from the exact specifications.

Shop Related SoundQubed Bass-System Products

Compare more SoundQubed subwoofers, browse monoblock car audio amplifiers, and shop subwoofer boxes and enclosures for the rest of the bass-system plan.

Helpful Subwoofer Guides

Use the subwoofer wiring diagrams and final ohm-load guide before choosing a voice-coil option. Read the subwoofer enclosure guide before selecting or building a box, and use the complete car audio bass setup guide to match the subwoofer, amplifier, enclosure, wiring, fusing, battery, and alternator.

The subwoofer specifications guide explains common woofer ratings, while the amplifier gain guide for subwoofers helps protect the system from poor setup and clipping.

Shop SoundQubed at Audio Sellerz

Browse the complete SoundQubed car audio collection at Audio Sellerz for SoundQubed subwoofers, amplifiers, speakers, tweeters, wiring, deadener, and system accessories. Read why Audio Sellerz sells and supports SoundQubed to learn more about the brand relationship and the product categories we carry.

Frequently Asked Questions About SoundQubed HDX3 15" Competition Subwoofer 1500W RMS D1 or D2

What amplifier should I use with this SoundQubed subwoofer?

Use the product's verified RMS power handling, voice-coil configuration, number of subwoofers, final wired impedance, and the amplifier's continuous output at that impedance. Do not match from peak or maximum power alone.

Which voice-coil option should I choose?

The title lists Dual 1 Ohm and Dual 2 Ohm options. Choose the version that produces a safe final load for the amplifier after accounting for the number of subwoofers and the planned series or parallel wiring.

What enclosure should I use?

Use the exact enclosure recommendations, displacement, mounting depth, and cutout information listed for this model. The best box also depends on the vehicle, available space, music, and desired output.