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Hifonics HFX12D4 (Open Box)

12" Dual 4 ohm HF Series Car Subwoofer (Open Box)

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12" HF Series Dual 4 Ohm Car Subwoofer • 800W Peak • 400W RMS • Injected Poly Light Rigid Cone • 1" NBR Reinforced Rubber Surround • One Piece Poly Cotton Spider • Spade Style Speaker Terminals • Chrome Stamped Steel Basket

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This item has been discontinued

Product Highlights


12" HF Series Dual 4 Ohm Car Subwoofer • 800W Peak • 400W RMS • Injected Poly Light Rigid Cone • 1" NBR Reinforced Rubber Surround • One Piece Poly Cotton Spider • Spade Style Speaker Terminals • Chrome Stamped Steel Basket

Description


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Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Hifonics 12" HF Series Car Subwoofer

Sonic Electronix is now carrying the Hifonics HF Series Car Audio Subwoofers. The HF Series 12" Subwoofer has a peak power rating of 800 watts and a RMS rating of 400 watts. This sub will produce some ground shaking bass and is constructed with a injected poly light rigid cone and a 1" NBR reinforced rubber surround for enhanced excursion. This woofer is also equipped with a dual 4 ohm voice coil and a large air cooled magnet assembly. Add some bumps in your trunk and enhance your cars stereo system with this Hifonics HF Series Subwoofer.

Product Features
  • 12" HF Series Dual 4 Ohm Car Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Impedance: 4 ohm
  • Injected poly light rigid cone for excellent durability
  • 1" NBR reinforced rubber surround provides large amounts of excursion
  • Integrated one piece poly cotton spider
  • 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
  • DVC 4 ohm high-temp KSV voice coils
  • Large air cooled magnet assembly
  • Sensitivity: 87.25 dB
  • Xmax: 6.5 mm
  • Mounting Depth: 5-5/8"
  • Mounting Diameter: 10-15/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Hifonics HFX12D4 (Open Box) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Hifonics HFX12D4 (Open Box) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Hifonics HFX12D4 (Open Box) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Hifonics HFX12D4 (Open Box) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
HF Series
Subwoofer Size
12"
Peak Power Handling
800 watts
RMS Power Handling
400 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Frequency Response
Not specified by manufacturer
Sensitivity
87.25 dB
Xmax (millimeters)
6.5 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Injected poly light rigid
Woofer Surround
Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.25 cubic feet
Maximum Sealed Box Volume
1.25 cubic feet
Minimum Ported Box Volume
1.6 cubic feet
Maximum Ported Box Volume
2.0 cubic feet
Top-Mount Depth (Mounting Depth)
5-5/8"
Cutout Diameter
10-15/16"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

HFX12D4-2

Weight:

8.30lbs

Internal SKU:

ls-hfx12d4-ob

Internal Product ID:

64259

Product and How-to Videos


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.