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Hifonics HFi12D4

12" Dual 4 ohm HFi Series Car Subwoofer

Discontinued
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This item has been discontinued

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Hifonics HFX12D4

OUR PRICE: $29.95

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Hifonics HFi12D4

12" Dual 4 ohm HFi Series Car Subwoofer

$54.99

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25 ft. of Streetwires 12 Gauge Speaker Cable

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20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

$59.99

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Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

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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 Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
600 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
300 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
88 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
11 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Injection Molded Polypropylene (IMPP)
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.25 cubic feet
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.15 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.75 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.5 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
5-3/4"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
61%
4 Star
28%
3 Star
7%
2 Star
1%
1 Star
3%

Average Attribution Rating

Durability
4.2
Value
4.7
Features
4.3
Design
4.4
Usability
4.7
alex

Meridianville, AL

Overall
Durability
Value
Features
Design
Usability
its ok to say it sounds good

December 6, 2009

i got 2 of these and there decent, i've heard way better and i'm 13 years old but that doesn't matter if your on a super tight budget and u have to get Wal-Mart quality this is 10 times better and it's worth the buy

7 of 9 found this helpful

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jon

twin falls

Overall
Durability
Value
Features
Design
Usability
eh not to good :/

November 12, 2010

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

11 of 18 found this helpful

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Mr.Bird

Mercer,Pa

Overall
Durability
Value
Features
Design
Usability
Best cheap sub i found for the cash

June 15, 2010

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....

12 of 20 found this helpful

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Gustavo

York, SC

Overall
Durability
Value
Features
Design
Usability
Love Em!!

January 30, 2011

I have 2 in my blazer hooked to an 760 watt pioneer, they sound great, I'm very satisfied.

8 of 13 found this helpful

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frank lane

rayville la

Overall
Durability
Value
Features
Design
Usability
hifonicsubs

May 6, 2011

I have 4 hifonic 12d4 on a planet audio 1600 u can here it a mile looking far a hifonics 2600 watt amp

10 of 18 found this helpful

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Kevin

Galesburg, MI

Overall
Durability
Value
Features
Design
Usability
Great Value

February 6, 2011

I own 2 of these, with a sony 1600 watt mono amp. They are a great buy for anybody wanting good sound with a low budget.

8 of 14 found this helpful

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Tony

Delaware Ohio

Overall
Durability
Value
Features
Design
Usability
Great sub

December 25, 2010

i just got 1 a couple of days ago and i gots to say is it pounds!! i got it hooked up to a 600 MA amp (great amp). it hits alot better than my crappy other sub. im gettin anthor one soon!! get it you will love it for the price

6 of 10 found this helpful

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chris

Miami, FL

Overall
Durability
Value
Features
Design
Usability
greatt sub veryy satisfiedd!

November 6, 2010

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

10 of 18 found this helpful

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thisguy

Indianapolis, IN

Overall
Durability
Value
Features
Design
Usability
hits hard

June 1, 2010

Hits hard and lower than a a lot of subs that cost more. Had two on a 1000 watt amp and they are insane loud. For the price, its great

4 of 6 found this helpful

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heck

springfield ma

Overall
Durability
Value
Features
Design
Usability
HFi12D4 subs

May 31, 2010

these subs are good for beginners they are good product

5 of 8 found this helpful

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simon

Olyphant, PA

Overall
Durability
Value
Features
Design
Usability
Good for price, don't give them too much power.

March 25, 2010

They sound good, had two in a ported box. I kept them under 200 watts RMS a piece for 2 weeks (by DMM). put in a new amp and set them to about 350 RMS and blew them in about 2 minutes with my H/U just under 1/2 volume.

4 of 6 found this helpful

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deborah

jacksonville, FL

Overall
Durability
Value
Features
Design
Usability
best sub for the price

October 23, 2008

I got done installing two of these subs and man do they hit hard they already rattled my mirror off and i only had them on for about 5 minutes if your looking for a good sub then this is it.

4 of 6 found this helpful

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j

palm beach, CA

Overall
Durability
Value
Features
Design
Usability
excellent

April 25, 2008

this sub sounds great, took a couple days to break it in and it bumps loud! i only have one right now because i am waiting for my other, it is being powered by 600 watt amp and sounds so good. cant wait for my other!
overall very good product and i am glad i got it for the price.

4 of 6 found this helpful

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Michael

Mesa, AZ

Overall
Durability
Value
Features
Design
Usability
Price does NOT equal quality

April 9, 2008

I have one of these subs being run by a DEI 600 D Class Amp in my truck. The sub puts out very clear and clean sound without raising the gain past 75%. I am planning this same combo in my car, as well as a DEI 1200 amp running two of these in the truck.

The design was a lot more sturdy than I expected for the price. They hit very hard, clean, and crystal clear (with the right EQ setting). They are also very pleaseing to the eye, set in all black with a chrome rim. These subs alone have pointed me towards Hifonics products in general.

I highly recommend these product for a person on a budget, or one that does not need a main stream name to impress.

4 of 6 found this helpful

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Phatboy

newark ny

Overall
Durability
Value
Features
Design
Usability
love them

May 1, 2011

I have 2 of them hooked up to a 2000 watt amp pushing 600 to each sub thats max power and its crazzy u can here the 4houses down from mine loud and clear iv been running them like that for year now nohing went wrong yet worth the money

9 of 17 found this helpful

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Swanks

Canton, NC

Overall
Durability
Value
Features
Design
Usability
Best Bang For Your Buck!!

March 22, 2011

For the price, I dont feel you can beat this speaker.
It is crisp, clear, and best of all, HITS HARD IN A PORTED BOX.
I built the box to Hifonics specs with the proper volume and port size, and I am very happy with its performance. I have delt with many high end, high dollar woofers and Im just amazed at this little cheap guy.
I am giving it roughly 600watts RMS and 1000Watts peak with no distortion, just clean hard bass. I was unsure about giving it this much power, but it handles it very well. Its all about the box and amp. Dont skimp on a box, get the proper volume and port size and this sub will impress you. Bass, I love You plays amazing and this woofer can MOVE SOME AIR. Thats all I have to say.

9 of 17 found this helpful

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Bryan

Crawfordville, FL

Overall
Durability
Value
Features
Design
Usability
Pretty Good - Run them at 200 rms and they are fine.

March 22, 2011

I purchased one of these speakers at a liquidation, which cost me more.
I built my own box to my specs because i like bass around 20 to 35 hertz.
My box is 3.92 cubic ft with a 4 inch port, tuned it to 25 hertz. with this speaker it really pounds some those low low bass songs.

Songs used: "I'm Goin In" - Lil Wayne, "6 Foot 7 Foot" - Lil Wayne
"It's Goin Down" - Yung Joc "Blueberry Yum Yum(Chopped and Screwed) - Ludacris". Some songs from Birdman, of course "Late Night Tip" - 3 6 Mafia. "Oxycotton(Chopped and Screwed)" - Lil Wyte
"In Da Club " - 50 Cent. "Hypnotize & White Girl" - Young Jeezy

These are just a few I could remember

9 of 17 found this helpful

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k dogg

essex junction vermont

Overall
Durability
Value
Features
Design
Usability
good bass for a cheap sub

February 24, 2011

I was very pleased at first with the sub until i beat on it every day with about 410 watts rms and i recently found out my amp was pushing 850 watts at peaks to it woops only supposed to be 600 peak to the sub i am going to buy 2 with a ported box and throw the amp back on them at a 4 ohm mono load pushing their 300 rms to them and 600 at peaks should last a little longer at 410 rms it lasted about 2 months . i would recommend to some one looking for mirror rattling bass just dont push to much power to it

7 of 13 found this helpful

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oliveboy

baltimore

Overall
Durability
Value
Features
Design
Usability
good unit

December 7, 2010

Nice cheap sub, good lower bass, not high end but for $30 its good.

3 of 5 found this helpful

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Kickin Indian

Cali

Overall
Durability
Value
Features
Design
Usability
good with existing car or low lvl systems

November 3, 2010

I bought this sub in July 10' and I put it in my Mazda P5 its perfect for this car this sub was made for small cars I think cuz I have 1 running exact RMS stated from a little 400 watt amp and its really clean and hits hard!! I was in my school shop which is really loud and some one heard it inside two rooms away

4 of 7 found this helpful

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antonio

north carolina

Overall
Durability
Value
Features
Design
Usability
Not bad

October 19, 2010

I bought these for a mecp school project got them today and put them in a ready built box they hit 139.14 on the termlab I'm impressed especially for a sealed box

3 of 5 found this helpful

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Buckley

Elk Point

Overall
Durability
Value
Features
Design
Usability
HiFonics 12d4

October 15, 2010

These subs give you the bang for your buck. I had 2 of these in a ported box (4cf) hooked up to Planet Audio amp..I had 300 watts going to each and they hit harddd. my friend took my advice and put 4 in his at like 9cf and they flexed the windshield, its all about the cubic feet, if you don't have the right amount then their not gonna hit, but if you do then these will surprise the $*** out of you.

3 of 5 found this helpful

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KyL

Elk Grove, CA

Overall
Durability
Value
Features
Design
Usability
I love em

June 8, 2010

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 =]

10 of 19 found this helpful

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Cesar

Dallas, TX

Overall
Durability
Value
Features
Design
Usability
BEST BANG FOR YOUR BUCK

April 11, 2010

I bought a pair of these speakers and was amazed of the power these can deliver wow the best bang for your buck hands down!

3 of 5 found this helpful

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James

Charleston, SC

Overall
Durability
Value
Features
Design
Usability
Bang 4 Your Buck

March 12, 2010

I Got 4 Hifonics In My Grand Marquis And Let Me Tell You..Those Subs Bump, My Cousin Says They Can Hear Me Down The Street Before They See Me...For The Price Sonic Electronix Has Them For, You Cant Beat...

4 of 7 found this helpful

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Chris

Baltimore, MD

Overall
Durability
Value
Features
Design
Usability
Best bang for buck hands down!

May 22, 2009

I have two of these with 500 rms going to each and they hit hard. They sucessfully removed my rearview from my windshield! There is a little clipping when turned up, but thats because they are 30 somethin bucks! If you want audiophile or competition quality dont get theses. If you want awsome bass for almost no money GET THESE!

3 of 5 found this helpful

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James

greenfield, IN

Overall
Durability
Value
Features
Design
Usability
HFi12d4

February 12, 2009

I have had a lot of experience with different subs and the way they sound. When I first hooked them up I wasn't very impressed, but after a couple of days of breaking them in and getting them to loosen up some they are real loud. I have them in a 3.3 cu. ft. sealed box. Hifonics recommends a ported box since they are there lower end subs. They said that a 5.78 cu. ft. ported box was what they recommended for 2 subs; with the port being .77 cu. ft. of that space. A+++++++++ product and website.

4 of 7 found this helpful

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Reginald

Bedford Heights, OH

Overall
Durability
Value
Features
Design
Usability
Hits Hard

December 23, 2008

I have one in my car with a MTX300xd amp in a ported box and it hits like two.

3 of 5 found this helpful

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Austin

Springfield, MO

Overall
Durability
Value
Features
Design
Usability
Great bang for the buck!

July 10, 2008

I have previously owned 2 of these subs, and you really cannot beat them for the cost! i have had a set of Kicker cvr's and they weren't as loud as these! I would say that there only weak point is the large ported enclosure size for a 12, None the less, I am currently about to checkout with 6 of them in my cart.

Thank you sonic electronix! once again you have proved to be the lowest on the net.

4 of 7 found this helpful

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Dan

Kalispell, MT

Overall
Durability
Value
Features
Design
Usability
Nice Subwoofer

July 10, 2008

His Sub is well worth it for its money. i would recommend it.i have never purchased a sub for such low cost that outperformed the higher brands. i am really satisfied with this product and would recommend anyone to look no further for a sub.

4 of 7 found this helpful

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Ricardo

lancaster, CA

Overall
Durability
Value
Features
Design
Usability
Amazing!!!!

April 23, 2008

At first i didnt expect that much from this subs but when i put this bad boys in a ported enclosure and hooked it up to my hifonics bxi 1206d at 4 ohms oh my lord!!! these are deep loud and they have alot of clarity really good subs for the price i recommend this to anyone that wants big loud bass for the cheap price there offering right here at sonicelectronix...

4 of 7 found this helpful

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Bryan

Indianapolis, IN

Overall
Durability
Value
Features
Design
Usability
True power

January 24, 2008

I have 8 12s and these two are the loudest and hit the deepest. They hit louder than some 800watt subs I have. I recommend this because its a cheap price and you get a very nice product. the baskets are nice and shiny if you want to invert also. So many people have looked at these go wow they must have cost like $120. This shook the whole 2nd floor with 75watts A+++++

3 of 5 found this helpful

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curtis

milwaukee, WI

Overall
Durability
Value
Features
Design
Usability
Great buy for cheap!

October 12, 2007

I just got the older Hfi 12d4 subs and i can be heard a city block with only a 600watt infinity amp. They can handle more power i'm looking for a new amp now i have them in a vented box

3 of 5 found this helpful

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Chris

Roswell, GA

Overall
Durability
Value
Features
Design
Usability
Great Value

July 13, 2007

I bought this sub on an impulse buy because i just wanted a new sub, and boy was i surprised. This sub has clarity, loudness, and great excursion with minimal distortion and it looks cool on top of it. AAA+++++ sub for the money

4 of 7 found this helpful

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goofy

sparta, tn

Overall
Durability
Value
Features
Design
Usability
good price

March 28, 2011

These are good speakers. For the money. I like them I would recommend them to somebody else.

10 of 20 found this helpful

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AP

Palos Hills, IL

Overall
Durability
Value
Features
Design
Usability
Good overall sub

January 28, 2011

I was skeptical but it exceeded my expectations based on the price. As long as you don't over power the sub it sounds great. I have one in my civic hatch back with 200w power it and it really does slam when I want it to without the fear of it exploding. It's more than worth the small price you pay for it.

6 of 12 found this helpful

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bassabigdeal

bullhead AZ

Overall
Durability
Value
Features
Design
Usability
AWSOME!!!

January 3, 2011

first of all this is a great over all subwoofer.heavy rubber surround,thick cone,a MASSIVE spider,sewn tinsle leads,and push down terminal conections overall a wonderfull buy for the price. I WOULD DEFINITELY RECOMMEND this subwoofer for anyone looking for a deep bass,hard hitting,awsome subwoofer.

6 of 12 found this helpful

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juan

east moline, IL

Overall
Durability
Value
Features
Design
Usability
Great buy

October 26, 2010

this is a great budget subwoofer and it has a good sleek look

3 of 6 found this helpful

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Garrett

St. Louis

Overall
Durability
Value
Features
Design
Usability
can't handle it

June 16, 2010

i gave one 250rms at 8 ohms and it fried in less than a minute

4 of 8 found this helpful

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Issac08

Florida

Overall
Durability
Value
Features
Design
Usability
Eh..

June 9, 2010

Its an ok product handles the power to a certain extent, cover is this cheap plastic with a stamped out basket that can cut most objects. I have six of these hooked up to a mojo 2000d, they hit just not enough. Defiantly needs more excursion. But if your a beginner buying these for some bump, their ok.

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John

Rogers, AR

Overall
Durability
Value
Features
Design
Usability
BOOM, BOOM, BOOM

June 7, 2010

Very tight bass, Bang for the buck is amazing. Super good buy. I want to buy another one.

2 of 4 found this helpful

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Ricky

Livonia, MI

Overall
Durability
Value
Features
Design
Usability
Perfect

April 23, 2010

Can't beat the price. Had two of them hooked in my grand marquis running 200 watts rms through both of them and still hit hard and low. Will be getting these for my new car!

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David

Gilbert, AZ

Overall
Durability
Value
Features
Design
Usability
Very Respectable

March 14, 2010

I was a little worried about purchasing a entry level sub from Hifonics. I mean $35 with free shipping? What do I expect? WOW was I surprised! I have this sub is slot port box 1.35 cubes tuned at 40 hz and it thumbs great. I would not say you will shake the neighborhood but you will be jammin in the cabin. If this sub is in your budget, don't hesitate. My only gripe is that the spring terminals are for high gauge wire. In other words, skinny. Peace.

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Romeo

Norfolk, VA

Overall
Durability
Value
Features
Design
Usability
Awesome Sub

September 16, 2008

Purchased this sub because I was on a budget and read some good reviews about it here. I was very surprised to hear how good this sub sounds. Powered with a 250 watt RMS mono amp in a sealed enclosure in the back of my Explorer and this thing pounds!!

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David

Ardmore, OK

Overall
Durability
Value
Features
Design
Usability
Great subs

September 11, 2008

well to start off the sound quality was decent! but the plastic caps over the magnets vibrate pretty bad. i have 2 of these and for the money none is better!

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bruce

conroe, TX

Overall
Durability
Value
Features
Design
Usability
hfi12d4 awesome sub

April 10, 2008

i have been installing and buying systems for the past three years so i know i good sub when i see one. this here is an awesome sub for the price. if your looking to build a budget system start with this. i used to own memphis 12's that costed around 100 a piece and did not hit as hard as these. just make sure you pair them with a decent amp at least 500 watts each sub. so yeah its an awesome sub

3 of 6 found this helpful

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jackie

neosho, MO

Overall
Durability
Value
Features
Design
Usability
this hifonics sub was great

December 6, 2011

Great sub for the money!

9 of 19 found this helpful

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shawn

battle creek, MI

Overall
Durability
Value
Features
Design
Usability
Not Too Shabby

May 30, 2011

I bought this sub for my girlfriend's station wagon, and put it in a large custom ported box. didn't have enough power running to it for its full performance but was loud and caught the lows a lot better than I expected.
There were some downfalls to it though mostly having to do with the Look/Design of this woofer. First: the cone is a little flimsy and rattles quite a bit when its hitting some of the higher bass notes, but i wouldn't throw it out for that. I just wouldn't recommend having the sub in the passenger compartment where you can hear the cone so much (preferably install in a trunk in a nice sealed box). Second: the ring that you put the screws through in order to mount the the sub isn't just a flat piece nor is it solid, so if you reef on the screws to make sure its tightly sealed, it flattens out and could hurt the surround if flattened too much. And Third: the chrome polished basket looks good, but the ABS plastic magnet cover has the capability to rattle some too, it just feels as though its a useless part that they put on to beautify the back and didn't put much energy into making it serve more of a purpose.
All in all it does what its supposed to do, and was worth every penny.

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iMISSmyROCKFORDS

EGFL

Overall
Durability
Value
Features
Design
Usability
Seriously

March 8, 2011

Ok so I was very unsure of buying these subs, I got 2 of em for $50.. and that alone should make anyone unsure lol, but I blew my old subs and needed something quick and cheap so I got these.. I WASNT an idiot and hooked them up to max rms and try to slam them to max the second day I got them.. I know you have to break subs in, so for about 5weeks I kept these at roughly the same low to medium volume. i have them hooked up to a Rockford P500.2 which is 250w RMS @ 2ohms x2.. I kept my bass knob at a little less than 1/4 of the way up.. and after the breaking in period I could notice a huge difference SERIOUSLY.. I can turn these to a high volume with bass boost almost 1/2 the way up and it is thunderous! I just suggest read the specs and tune your amp accordingly and these things are amazing! 2 thumbs way up

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Josh

Glendale, CA

Overall
Durability
Value
Features
Design
Usability
Great price for subs.

February 6, 2011

The RMS rating is only at 300 but for 40 dollars a sub. You can't beat that!

6 of 13 found this helpful

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Curtis

Nevada, MO

Overall
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Value
Features
Design
Usability
simply amazing

December 30, 2010

Bought 2 of these almost a year ago and they still sound the same as they did when I installed them. loud, low and clean in the proper enclosure. I custom built my enclosure at 1.8 cubes and 35Hz slot ported and they sound amazing. I highly recommend these for a beginner and the medium daily driver.

3 of 7 found this helpful

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"Soundz"

huntsville, alabama

Overall
Durability
Value
Features
Design
Usability
not a good choice

November 21, 2010

I had these subs for bout 4 months in a ported box. i hated them. I got some Kicker CVRs now, and I'm pleased, but I'm still not happy. But the Hifonics wasn't even good for surround sound subs for me. If u dont need a lot of bass, get these. If your dad wants a lil bass because the stock speakers aren't good enough, get these. If u wanna make the car shake, and make sure u can hear it with all the windows down, don't get it. The motor was louder then the subs. So if you don't need a lot of bass. This is it. but dont forget, u get what u pay for.

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Jay

Easton, PA

Overall
Durability
Value
Features
Design
Usability
Entry subs

February 21, 2010

Great cheap subs. No crap from w*****t ty! I have 2 of these currently and they do pretty good. Great just to add some bass to ur everyday music. They can shake everything in and out of the car. I have them hooked to a little Nitro 1k watt amp wired down to 2 ohm. For the price you cant go wrong. They are not Fi or Dc Audio's but for now they will do lol. After a few days of breaking them in they did get louder but I cant max my amp on them or they just distort to all h**l. I would say grab a set if you dont wanna spend a ton of $$$$. Great bass for the buck.

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MARCUS

OMAHA NEBRASKA

Overall
Durability
Value
Features
Design
Usability
DONT BUY!

June 30, 2009

IF YOUR LOOKING FOR HARD HITTING BASS THIS IS NOT THE SUB FOR YOU.. THIS SUB WILL DISTORT IF YOU BUMP IT. BUT GOOD FOR BEGGINERS AND IF YOUR ON A BUDGET JUST HOOK IT UP TO A GOOD AMP. AND IT WILL DO JUST FINEE.

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J

sacramento

Overall
Durability
Value
Features
Design
Usability
Good entry level sub

May 24, 2009

this is a good entry level sub for people who like bass. just put it in a nice 2-2.5 cuft ported box and it will do fine.

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Tad

Plainfield, IL

Overall
Durability
Value
Features
Design
Usability
descent for the price

November 19, 2008

if you're looking for a cheap system this is the right sub. It brings 300 watts rms to bump to for cheap

3 of 7 found this helpful

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Jason

Mc Keesport, PA

Overall
Durability
Value
Features
Design
Usability
Awesome!!!!

November 12, 2008

My buddy put 2 of these in this impala and they sound very clean hit hard as ever. After seeing that and how inexpensive they are i plan on hooking up four in these bad boys in the back of my car. (built for street and show) My neighbors should at me just that much more.

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jamal

Anaheim, CA

Overall
Durability
Value
Features
Design
Usability
Hits Hard!!!!!!!

August 21, 2008

i have 3 of these in a sealed box each chamber is 1.75 cu.ins and i have down to 2ohm on a boss 1100 watt mono block amp and i have the gain on 50% and the bass all the way up on the amp and this straight hits hard i was shock when i heard these i thought it was cheap for a beginner system. and let me tell u this aint no beginner system it has amazing lowness deep bass and i hit 158.3 on a db spl meter....i highly recommend this product

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Anthony

Ardmore, OK

Overall
Durability
Value
Features
Design
Usability
Very good Sub!!!

July 3, 2008

I have used the older Hifonics hf12d4 which are basically the same as these and they lasted a good while. I was powering 2 of them with a Memphis pr1.1000 with about 500w RMS. I got them from my step bro which he had for a few months before me. When I started using them they lasted for about 7 months and thats usually turning up the gain half way and riding home in the country with the bass all the way up to just see how loud it would get.What happened was the voice coil burnt out and the other one still works. My step bro tested them and they hit about 130db. Which is really good subs for such a cheap price. The sound quality was about average. I sold my Memphis 1.1000, 1f efx cap, and my one Hifonic sub to my step bro. My next system is going to be the $60 pioneer subs, boss cap 2f, and a phoenix gold v8001 for $180. Its all costing me $330 because of the lowest price guarantee which makes me shop at SonicElectronix.com that much more.
--For this sub I highly recommend powering it with about 300w RMS but not too much gain.

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corey

Inverness, FL

Overall
Durability
Value
Features
Design
Usability
149.5 db

August 20, 2011

I have 6 of these in a ford explorer in a 15 cube ported box tuned to a 30 hertz note. they are fed by a nappy precision power 2000 watt amp. People ask me what i have, i tell them hifonics, they kind of shrug and walk away but when i rip the volume knob they coming running to hear them. IMO for the money there an excellent sub for any use. Till then keep bumping my friends.

8 of 18 found this helpful

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Gustavo

York, SC

Overall
Durability
Value
Features
Design
Usability
Lovin Em!!!

July 4, 2011

Had them for a good amount of time now. In my opinion they look great.
they take me daily beating, not too much power though, just a pioneer 760 watt. rms every day. My experience, these are the loudest ive heard in my area, and i just love em!

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Warren Piece

Minneapolis

Overall
Durability
Value
Features
Design
Usability
Let's talk about bangin!

October 24, 2010

I have 4 of these hooked up to a kicker 1000x 1 in a closed box and it's crazy! I am a 15's type of guy but I own my block right now with these!

4 of 10 found this helpful

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Kevin

Kalamazoo, MI

Overall
Durability
Value
Features
Design
Usability
Great Value

June 30, 2010

For a sub under $50 dollars this thing is a steal, great for entry level systems.

2 of 6 found this helpful

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88Lbody

Cocoa, FL

Overall
Durability
Value
Features
Design
Usability
Great budget bass!

June 7, 2010

I got my hands on these and decided to give them a go. Ive always rocked old school Orion subs, and love them.

I wired 2 of these down to 2 ohms, custom sealed enclosures, I'm doing hair tricks in my 87 Ranger, giving them 200ish RMS a piece and they pound so hard.

Im impressed no doubt the best bang for your buck.

My next major overhaul will be a complete Maxxsonics build.

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Schu

ohio

Overall
Durability
Value
Features
Design
Usability
Should cost more!!

December 10, 2011

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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cj

arkansas

Overall
Durability
Value
Features
Design
Usability
price

May 29, 2011

I bought these two months ago, from Sonicelectronix and the price was only 39.00 so look some where else b4 you buy here.

3 of 9 found this helpful

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cj

arkansas

Overall
Durability
Value
Features
Design
Usability
to help understand

March 9, 2011

This is a great sub for the price but people should know that you haft to the right box if it bottoms out the box is to big if it pops loudly the box is to small, ported boxes move alot of air so you can make any sub bottom out, Hifonics is cea certified for true power so you can bash a company that has over 25 years of experience, plz build the box to there specs usually a 1.2 to 1.5 cuft box will do

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freakny

new york

Overall
Durability
Value
Features
Design
Usability
good bang for buck

March 1, 2011

I have two in a 4.0 cube ft box tuned to 34hz running on a usamps b100.For the price great buy lacks some on low end but for price wow.

8 of 19 found this helpful

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mikey

simi valley,CA

Overall
Durability
Value
Features
Design
Usability
alright sub

February 21, 2011

Thought it sounded pretty good as it beeing my first sub, but as the weeks went by i became a little less satisfied.. the plastic backing cover thing rattles as the bass hits..highly annoying.. other than that, i would recommend buying this sub as a starter and its cheap price,as they say..you get what you pay for.. i will be up grading soon.

4 of 11 found this helpful

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HR

Canada

Overall
Durability
Value
Features
Design
Usability
Great Value!

February 8, 2011

I bought this sub not expecting alot but i was surprise it plays very good, for the price I installed it in a 07 civic and i'm running it off the stock head unit and it performs very good bass line run clean and there is no or distortion! so far it worth the investment.

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biggie

silver city

Overall
Durability
Value
Features
Design
Usability
GET THESE

December 18, 2010

i had 2 of these hifonics hooked up on both voice coils in a ported box with about 250 rms on each sub n they suprised me and my friend who had 2 kenwood kfc subs and even he thaought they were louder than his kenwoods n i paid only 60 for both brand new on another website n he was pissed so if ur looking for sum cheap subs that sound good and will fill ur car with bass get these. i dont get where people say these subs r crappy they must not of hooked um up right . I also recomend the 10 INCH RE SRI10D2 they r really good quality and sound subs

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john

petroleum, IN

Overall
Durability
Value
Features
Design
Usability
not too bad

October 26, 2010

These subs are not too bad. They have their pros and cons. They hit pretty good for a 30 dollar sub. But the prob with them is that they smell. I have a 1000 watt hifonics amp running two of these subs and each sub is getting about 250 watt rms. they are an alright sub....but idk if i would buy any more of them again

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antonio

Mayodan, NC

Overall
Durability
Value
Features
Design
Usability
GREAT

June 7, 2011

I have 2 of these in a ported box tuned to 36 hz with a TXi 7506 at 1 ohm these take it like a champ, break in time is a bit long (12hrs) but no other sub will beat it

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dylan

hanover, MN

Overall
Durability
Value
Features
Design
Usability
hits hard

March 23, 2011

i recently had a soundstream t5 10" wired to 1 ohm but it broke i got one of these and wired it to 2 ohms and it hits harder then the soundstream t5. definitely a good buy

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Accessory Tools and Products

Accessories added

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $68.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $94.95

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Hifonics HFi12D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Hifonics HFi12D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Hifonics HFi12D4 Subwoofers

Mono Amp

4 Channel Amp

4 Hifonics HFi12D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

HFi12D4

UPC

806576214229

Weight

9.75lbs

Internal SKU

hfi12d4

Internal Product ID

9357

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Hifonics HFi12D4