✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Must-have Soundqubed Hdx4 15" Subwoofer Perfect For Gifting [aAiqwo5J]

$68.99 $220.99 -69%

HDX subwoofers build upon the design of the HDC line in response to recent shifts in source material and the mainstream frequency tuning of our customers’ vehicles. Our team scrutinized all aspects of the HDC subs to improve performance at lower freq

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

HDX subwoofers build upon the design of the HDC line in response to recent shifts in source material and the mainstream frequency tuning of our customers’ vehicles. Our team scrutinized all aspects of the HDC subs to improve performance at lower frequencies. The resulting HDX dual voice coil competition subwoofer line is more efficient, plays lower, and sounds better setting a new bar for performance and value.

INCREASED EXCURSION

The new cast basket accommodates larger diameter spiders, providing more room for cone and spider travel. Heat dissipates more quickly with greater movement and a more open airflow path.

New spiders with more, higher rolls take advantage of the increased suspension travel. This extra material in the spiders increases the freedom of movement, lowering the Fs, while maintaining durability over time.

The subwoofer’s surround profile is higher, reducing material stress while increasing excursion. Cone area and moving mass remain virtually the same, as opposed to inner-tube surrounds popping up here and there.

INCREASED STRENGTH AND DURABILITY

A fiberglass-reinforced pulp cone meets the strength demands of the increased excursion. A non-press cone formation process increases the cross-section area of the cone walls for more rigidity without adding extra mass.

The voice coils feature high-quality, American-made wire and adhesives increasing the thermal working range of the coil. Additionally, thicker, black-anodized aluminum formers increase thermal transfer from the coil wire.

The HDX line makes it easier to tune low-frequency pressure into a system without sacrificing impact. HDX subs allow you to explore design choices with high efficiency, making the most of amplifier power and electrical resources.

 

Model HDX412 HDX415 HDX418
RMS Power 2000 W  2000 W  2000 W
Peak Power 6000 W  6000 W  6000 W
Magnet Weight 403 oz  403 oz  403 oz
Coil Diameter 4"  4"  4"
Woofer Size 12" 15" 18"
F(s) 30.95 Hz 29.61 Hz 22.8 Hz
Impedance D1 D1 D1
Z(max) 21.2 Ohms 22.43 Ohms 19.3 Ohms
Q(ms) 3.664 4.047 4.568
Q(es) 0.344 0.3658 0.4852
Q(ts) 0.3145 0.3355 0.4386
V(as) 24.93 Liters 55.04 Liters 163.3 Liters
L(e) 0.7672 0.8143 2.477
n(0) 0.21% 0.37% 0.38%
M(ms) 422 grams 500.3 grams 616.8 grams
C(ms) 0.063 0.058 0.078
Sensitivity (1W/1m) 85.22 dB 87.81 dB 87.95dB
BL 20.84 21.75 18.4
Xmax 21 21 31
Sd 260.4 mm 323.9 mm 393.7 mm
Displacement 0.2³ 0.22³ 0.32³
Mounting Depth 8 5/8" 9 3/8" 11 5/8"
Circle Cutout 11 1/2" 13 7/8" 16 9/16"
Ported Enclosure (Cu Ft): 1.75-2.75 FT³ 3-6 FT³ 5-7 FT³

What Our Customers Say

January 5, 2026

Absolutely no complaints!

It’s a very well-made, high-quality piece of kit.

- Cynddylan U..

January 5, 2026

Absolutely no complaints!

This is a very impressive, and a very, very solid tool.

- Mabyn F..

January 5, 2026

Absolutely no complaints!

I'm happy with this. It is just so very, very perfect.

- Heulwen G..

Write a Review

You Might Also Like

Discover more great products from our collection.

ALLEN-BRADLEY 800T-2HCH2KB6

ALLEN-BRADLEY 800T-2HCH2KB6

(669)
$83.99 $268.99 -69%
Oakley HSTN Rx OX8139 02

Oakley HSTN Rx OX8139 02

(281)
$37.99 $121.99 -69%
Dv Kap Demarco Pillow

Dv Kap Demarco Pillow

(439)
$34.99 $111.99 -69%
Frida Tehuana Huipil Blouse

Frida Tehuana Huipil Blouse

(214)
$51.99 $166.99 -69%
42617 Farm Animal Sanctuary

42617 Farm Animal Sanctuary

(569)
$19.99 $63.99 -69%
Universal Silberlot

Universal Silberlot

(986)
$21.99 $70.99 -69%

Copyright 2026 © technovaprecision.com

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY