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Hifonics HFi12D4

12" Dual 4 ohm HFi Series Car Subwoofer

4.4

(74 reviews)

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The product on this page is discontinued, but there is a newer model available:
Newer Model: Hifonics HFX12D4
hfx12d4 thumbnail
$44.95In Stock

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Big Bass on a Budget

When it comes to superior bass without a hefty price, the Hifonics HFi subwoofers take the lead. Hifonics has developed this great looking subwoofer specifically as an entry level subwoofer, however they integrate many of the technologies found in their high end subs. Sturdy spring loaded terminals ensure a secure connection that will not come loose. The high-energy magnet is surrounded by a anti-resonant rubber boot cover. A cooling system surrounds the multiple layer, high temperature voice coil to assist in keeping the voice coil cool. These incredible starter subwoofers are designed for enhanced thermal dissipation, more power handling, long excursion capability and highly optimized motor/suspension system that ensures clean, articulate bass reproduction with impressive low frequency extension. For the biggest bass on a budget, look to the Hifonics HFi series subwoofers!

  • 12" Dual 4 Ohm HFi Series Subwoofer
  • Power Handling:
    • Peak: 600 watts
    • RMS: 300 watts
  • Impedance: Dual 4 ohm
  • Injected poly light rigid cone
  • 1” NBR Reinforced rubber surround
  • High-excursion rubber surround
  • Integrated one piece poly cotton spider
  • Poly-mica cone damping
  • Nickel plated push and insert speaker terminals
  • Dual 4 ohm high-temp multi-layer high-temp voice coil
  • Front-plate and voice-coil cooling
  • Poly light dust cap
  • Heat dispersing ported back plate
  • Ultra ridged chrome stamped steel basket
  • High strength ABS motor cover
  • High-energy magnet
  • Large air cooled magnet assembly
  • Anti-resonant rubber magnet boot
  • Sensitivity: 88 dB
  • 1-year SonicElectronix.com warranty
Read more about the HFi12D4 at our blog.
Product History:
Hifonics HFX12D4 thumbnail
(newest, current model)
Hifonics HFi12D4 thumbnail
(previous model, replaced by Hifonics HFX12D4)
Hifonics HF12D4 thumbnail
(previous model, replaced by Hifonics HFi12D4)
Subwoofer Specifications
Subwoofer Size12"
Peak Power Handling600 watts
RMS Power Handling300 watts
Voice Coil(s)Dual
Impedance (Per Voice Coil)4 ohms
Frequency ResponseN/A
Sensitivity88 dB
Xmax (millimeters)11 mm
Subwoofer DesignRound / Circle
Main Cone ColorBlack
Woofer CompositionInjection Molded Polypropylene (IMPP)
Woofer SurroundRubber
Subwoofer GrilleNo
Re-Cone Kit AvailableNo
Recommended Enclosure Specifications
Recommended Enclosure TypePorted / Vented
Sealed
Minimum Sealed Box Volume1.25 cubic feet
Maximum Sealed Box Volume2.15 cubic feet
Minimum Ported Box Volume1.75 cubic feet
Maximum Ported Box Volume2.5 cubic feet
Top-Mount Depth5-3/4"
Cutout DiameterN/A
Shallow Mount InstallationNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Hifonics HFi12D4
Average Customer Rating is 4.4 out of 5 stars:
4.4
based on 74 Reviews
Share your thoughts with others:
Rating Distribution:
Average Attributes Rating:
Durability
4.2
Value
4.7
Features
4.3
Design
4.4
Usability
4.7
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
November 12, 2010 eh not to good :/
1 of 1 people found the following review helpful:
Review by
jon from twin falls
Overall
Durability
Value
Features
Design
Usability
i hooked 2 of these up and ran them at 300 watts rms each and the second day of playing them they started to bottom out on a few songs and they almost blew :/ but on low volume these really compliment the music but if your looking for low and loud bass these wont do the job as well as others
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November 6, 2010 greatt sub veryy satisfiedd!
1 of 1 people found the following review helpful:
Review by
chris from Miami, FL
Overall
Durability
Value
Features
Design
Usability
This is a great deal for the price I got two hooked up to a 800 watt kenwood amp giving 230 rms to each sub and its beating up my trunk like you wouldnt believe people even been askin me if they were two 15"s!! I think there loud and meet most peoples expectations, imo great buy you wont be disappointed..planning on buying two more in the future and a bigger amp but for now im defenetly loud with these
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June 15, 2010 Best cheap sub i found for the cash
1 of 1 people found the following review helpful:
Review by
Mr.Bird from Mercer,Pa
Overall
Durability
Value
Features
Design
Usability
I had doubt`s about a sub this cheap. I bought 4 of them and put them in a ported box and all i can say is wow they sound awesome for the price and get pretty loud but they do have limits. I have them hooked to a hifonics brutus bxi1610d in a 2 Ohm load and if turned up to loud you can smell them but for the price there not bad but if you want ground pounding bass look to other subs but if your on a budget & just looking for something to get by with there worth the cash....
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June 8, 2010 I love em
1 of 1 people found the following review helpful:
Review by
KyL from Elk Grove, CA
Overall
Durability
Value
Features
Design
Usability
These subs far exceeded my expectations for how much I paid for them. I have these in a fat ported box in my Civic with a Boss GT1500D. All it does is rattle everything and make everyone laugh. Unfortunately, the frequency response isn't quite up there with Kicker or other top brands. They quiver a bit in hi-bass, the mid-bass in these are great, but they kinda bottom out when it comes to low-bass. Surely, they earthquake on low-bass but its just not quite up there with other subs. But all in all, they are still a definite GO for how much they cost. So buy em =]
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December 10, 2011 Should cost more!!
Review by
Schu from ohio
Overall
Durability
Value
Features
Design
Usability
I have one with 8ohms @ 200 watts. All I can say is it sounds as good as my JL 12. And this 12 was only $40.00 I would buy again in a heart beat. You will not be sorry. Also mine is in a hatchback. Very nice sound.
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View All 74 Reviews for Hifonics HFi12D4
Subwoofer Grilles
Protect your subwoofer while making your enclosure look great! These subwoofer grilles are the perfect addition to your new subwoofer.
 ProductPriceAdd?
12" Universal Subwoofer Grille12" Universal Subwoofer Grille
Protect your subwoofer with this aluminum grille that is simple to install.
$9.99
Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
 ProductPriceAdd?
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$19.99
20 ft. of 12 AWG Kicker Speaker Wire20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.
$24.49
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Xtreme Trunk KitDynamat Xtreme Trunk Kit
Get better sounding bass from your new subwoofer with enough Dynamat Extreme for your entire trunk.
$94.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!
$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: Hifonics
Model number: HFi12D4
UPC: 806576214229
Weight: 9.75 lbs
Internal SKU: hfi12d4
Internal product ID: 9357
Musical Mayhem Sweepstakes sponsored by MTX Audio. 3 winners, $2,300 in prizes!

Customer Testimonial

Great prices and excellent customer service. They respond fast and get stuff done. I highly recommend them!

- Josh from Baltimore, MD

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