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  • HiFonics HFX12D4 12" HF Series Subwoofer
  • HiFonics HFX12D4 12" HF Series Subwoofer
  • HiFonics HFX12D4 12" HF Series Subwoofer

HiFonics 12" 800w HF Series Subwoofer (HFX12D4)

Product Code : HFX12D4

List Price: $129.00 On Sale: $49.85 (GST Included) (You save 61.36%)

$9.95 Flat Rate Generally ships out in 24 to 48 hours.

In Stock


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Product Info

Product Info

HiFonics HFX12D4 12" HF Series Subwoofer

We Think You Should Know

  • 12 Month Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • 12" Subwoofer
  • 400 watts RMS
  • 800 watts Peak Power
  • Dual Voice Coils 4 Ohms
  • 87.25dB Sensitivity

The HiFonics HFX12D4 subwoofer feature a 1" NBR reinforced rubbber surround to enhanced excursion and dual 4 ohms voice coil for strong bass and large air cooled magnet assembly.The dual 4 ohm voice coils offer flexibility to maximise power to give powerful sound. The HF Series HFX12D4 subwoofer is designed to handle intense high power with 400 watts RMS power to deliver quality sound, deep bass.


  • DVC 4-Ohm High-Temp KSV Voice Coils
  • 1” NBR Reinforced Rubber Surround
  • Large Air Cooled Magnet Assembly
  • Integrated One Piece Poly Cotton Spider
  • Injected Poly Light Rigid Cone
  • Spade Style Speaker Terminals
  • Poly Light Dust Cap
  • Heat Dispersing Ported Back Plate
  • Ultra Ridged Chrome Stamped Steel Basket
  • High Strength ABS Motor Cover
  • Operates In Sealed & Ported Enclosures


Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is directly imported and is offered with a full Australian 12 month warranty. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). In the event that this product should fail please contact our service department to arrange service for this product.

We are not linked or associated with Hifonics Car Audio.

Our decision to import this product is in line with our company objectives to 'Offer our Customers the very best prices on the world's biggest brands and make sure our service is second to none'.

This product will be shipped from our Sydney Warehouse and you are welcome to pick it up directly from our store in Sydney. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

  • Model: HFX12D4
  • Size: 12" Subwoofer
  • Power Rating (RMS): 400 watts
  • Peak Power: 800 watts
  • Impedance: 4-Ohm DVC
  • Sensitivity: 87.25dB
In The Box

What's Included?

  • HiFonics HFX12D4 12" HF Series Subwoofer

1 Customer Reviews

Hifonics 12 inch HFX12D4 subwoofer
I am a fan of the old Hifonics series so I have been delving into car audio gear for a while now. I got this subwoofer at a good deal and decided to give it a run in my home theatre subwoofer plate amplifier which was run with a 4 ohm load. The subwoofer looks good cosmetically and made sturdy and durability. The extra large rubber surround and poly cone give the buyer reassurance that it is made to last and the chrome speaker ring gives it a bling effect. I ran the subwoofer with 250rms at 4 ohms into an enclosure of 1.8cu feet ported to 40hz and it was very efficient. The only drawback I found was the back chrome magnet gasket was emitting some rattling when I did crank up the volume. Apart from that minor issue, the subwoofer performs flawlessly. The Hifonics company is now owned by Maxonics which owns other brands on the market today so the new Hifonics gear, along with this subwoofer is made to the latest standards and also has voice coil cooling compared to the old Hifonics subwoofers back in the 80's and 90's. The subwoofer has 2 inch voice coils and it performs well in sealed and ported enclosures. The frequency response suggests that whilst it may not go low as other SQ subwoofers or handle SPL amount off power, it performs well for the price and as long as you have it in a well made box, it will provide years of enjoyment. Just make sure you install a grill to protect from damage in the trunk area. I would recommend the Hifonics HFX12D4 subwoofer for amp rated at 100 - 500rms per subwoofer.
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