Alpine X-W10D4 10" Dual 4-Ohm Mobile Subwoofer

The new Alpine X-W10D4 X-Series Subwoofer is like no other, harvesting bass performance beyond the limits and measures of their nearest rivals.

SKU: X-W10D4



Alpine X-W10D4 X-Series

10" Dual 4-Ohm Mobile Subwoofer

X-Series Subwoofers

Alpine’s  X-Series subwoofers bolster the X-Series Hi-RES amplifier and speaker line to create the ultimate unified audiophile sound system.

The X-Series subwoofers draw upon decades of Alpine engineering, expertise and precision manufacturing that culminates; to deliver a new of level build quality, design and finesse to produce a subwoofer with the highest calibre of bass fidelity and extreme output.

X-Series are like no other, harvesting bass performance beyond the limits and measures of their nearest rivals.

Alpine Image Defined

Alpine ID is short for the new Alpine global sound culture with an evolutionary approach for solving what’s missing in most car audio systems these days: great spatial imaging and depth of sound stage. It centers on developing matched sound systems with core components that work together to achieve greater realism in the sound stage while maintaining great dynamic range and accuracy. The new X-Series subwoofers underpin Alpine ID sound philosophy.

X-Series Expanded

A triple-stacked magnet and extended voice coil allow for a very long excursion resulting in huge air movement. A specialised CRC pole with integrated cooling fins and an aluminium shorting cap reduce the lag of the coil’s alternating movement while also providing cooling within the motor. The cone structure is suspended by two spiders and our patented H.A.M.R. surround. The stability of the dual-spider along with the even unfolding of the multi-roll surround create incredibly linear cone travel, free of any unneeded movement that causes distortion.

Built to move tons of air

The 24mm X-max is the best in its class and allows close to 2 inches of full cone motion. In order to create a powerful yet accurate subwoofer, Alpine has implemented several technologies that keep the cone under control. Dual spiders ensure a rigid moving assembly while the HAMR surround provides long linear travel. A shorting ring keeps the THD down while a custom heat sink integrated CRC pole and shorting cap keeps high magnetic force. These design aspects come together to produce incredibly precise, powerful bass.

All new motor design

The powerful and efficient motor coupled with its highly-controlled suspension gives the X-Series subwoofer the ability to create loud and accurate bass in a very small, sealed box. Only requiring 15.6 l of air space, the 10” X-Series subwoofer can reproduce frequencies down to 40 Hz before rolling off, leaving you with bass that digs deep and plenty of trunk space.

Easy grille and trim ring included

Taking design cues from tweeter development, Alpine has incorporated a twist-lock trim ring which allows easy attachment of the included metal mesh grill. With a simple twist, the trim ring locks into place, concealing the mounting screws and locking the optional grille into place. The trim can be installed with or without the grille.

A perfect match

The X-Series amplifier X-A90M is the perfect amplifier for the job. Along with the 900W power-matched specifications of both components, each was built under the same sound philosophy. With a focus on musicality and sound imaging, the X-W10D4 is complimented by the amplifier’s clean, low distortion output and >1500 damping factor. Add the X-Series speakers to the system and prepare to experience a new level of in-car imaging.

Voice-Coil wiring options:


Sound Garage, your Premium Alpine Car Stereo Specialist, Stockist, and Installation Centre in the heart of North Lakes
  • Alpine ID Sound Quality
  • 900W RMS, making it a perfect match for the X-Series X-A90M 900W mono amplifier
  • 24mm linear Xmax (1 way), 48 mm peak to peak
  • Dual spiders for precision control over the large dynamic range
  • Dual shorting rings for strong motor control ensure low THD and tight bass
  • Center pole radial heat sink which wicks heat away from the voice coil and transfers it outside the motor, for long term high output
  • The biggest HAMR surround yet, for linear cone movement throughout its large range of excursion
  • Light but rigid pulp/mica cone which allows for highly accurate bass with great natural tone
  • Twist-lock Trim ring with full mesh grill included
  • Diaphram
    • Material: Kevlar Rohacell® Layered Composite
    • Design: 1-Piece Parabolic with Vented Force Transfer Assembly


    • Material: Injection Molded Santoprene®
    • Design: High Amplitude Multi-Roll (HAMR Surround)


    • Material: Nomex®
    • Design: Dual Progressive with Integrated Tinsel Leads

    Voice Coil

    • Material: Aluminum Former
    • Design: 2.6" (65.5mm) Voice Coil

    Motor Structure

    • Pole Geometry: Airflow Optimized Dual Flare Pole Vent
    • Configuration: Triple-Stacked High Power Strontium Ferrite Magnets


    • Material: Cast Aluminum


    • Layout: One Side
    • Design: 8mm² Insert Terminals with Series/Parallel Jumper Plug

    Tinsel Leads

    • Design: Reinforced Layer Spider Integration


    • Design: Grille/Trim Ring Twist-Lock System
  • Power Handling
    • Power Range: 650W-900W
    • RMS Power Handling: 900W
    • Peak Power Handling: 2700W


    • Mounting Depth: 6-7/8′′ (174mm)
    • Mounting Diameter: 9-1/16′′ (229mm)
    • Displacement: 0.120 cu. ft. (3.4 l - Front Mount)
    • Added Volume: 0.030 cu. ft. (0.8 l - Reverse Mount, Magnet Out)


    • Frequency Response: 26Hz-200Hz

Approximate Weight:

  • Shipping: 5.45kg


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