Expert Service 1-661-257-9993 [Hours]

FLI Audio Frequency 12 (FF12-F4)

12" Single 4 ohm Frequency Series Car Subwoofer

Discontinued
|

We apologize

This item has been discontinued

Item Added to Cart

FLI Audio Frequency 12 (FF12-F4)

12" Single 4 ohm Frequency Series Car Subwoofer

$29.99

Keep Shopping

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$39.99

Add
20 Square Feet of Sound Dampening Material

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

$53.99

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

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

$7.99

Add

Don't see the accessory you're looking for?
View all available accessories for the FLI Audio Frequency 12 (FF12-F4).

Get FAST answers from customers ASK a Question See questions answers

Reaching an Improved Frequency with FLI Audio

The new Frequency series subwoofers from FLI Audio have been improved for a better and more accurate bass reproduction. They come available in a 10" or 12" woofer size and feature an injection molded Electroplated woofer cone that will create a more articulate and faster bass. The use of a Butyl rubber will deliver improved frequency response as well as added woofer protection from high excursion levels. The woofers are rated at 300W RMS for the 10" and 400W RMS for the 12" giving you enough power to really hit those lower frequencies. The single 4 ohm voice coil make them easy to wire to a monoblock amplifier or even a 2-channel amplifier at the bridged impedance giving the subwoofers versatility in wiring. If you are looking for a dependable woofer that will sound great and not break the bank then FLI Audio's Frequency series subwoofers are the way to go.

Product Features:
  • 12" Single 4 ohm Frequency Series Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 400 watts
    • Minimum Input: 200 watts
  • Impedance: Single 4 ohm
  • IMPP Electroplated woofer cone for articulate and fast bass
  • Butyl rubber woofer surround for increased frequency response
  • Rubber gasket for added air tight seal and style
  • Nickel plated spring-loaded speaker terminals for quick and secure connection
  • Rubber magnet boot dresses motor for protection
  • Single voice coil
  • Frequency response: 25-1,500 Hz
  • Cutout Dimensions: 11-1/4"
  • Mounting Depth: 5-11/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product History:

FLI Audio FF12-F4 thumbnail
(newest, current model)
FLI Audio FF12-F2 thumbnail
(previous model, replaced by FLI Audio Frequency 12 (FF12-F4))

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Frequency
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.
1200 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.
400 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.
Single
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.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
25 - 1500 Hz
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.
Silver
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.
IMPP Electroplated
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.
Butyl 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.
1.50 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.
2.0 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.
1.50 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.
1.50 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.
5-11/16"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
11-1/4"
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

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

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
40%
4 Star
40%
3 Star
20%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.4
Value
5.0
Features
4.4
Design
4.6
Usability
5.0
Daniel

Los angeles, CA

Overall
Durability
Value
Features
Design
Usability
Stupid loud subs

March 26, 2012

Just got two of these hooked up in a ported q logic box and they are crazy loud. These can easily handle the rms ratings no problem. 2 of them and my rear view mirror falls off.

8 of 10 found this helpful

Was this review helpful to you?

Jim

Truth or Consequences, NM

Overall
Durability
Value
Features
Design
Usability
F-4 is correct !

March 3, 2012

Liked the looks, the price was really good. After "free air" break in period, stuck it in a 1.7 sealed/1.4 partition ported enclosure on 1 1/2" x 22". Thing turned out sickening. Have yet to run more than 200 watts on .6 boost, but as is, It turned out to be the loudest, hard hitting, and steady sub on a 12" diameter in my entire area. Can't wait to hook up my KDC-7206 on this beast. Additionally the leads for the coil are one small detail I love!! Wish more drivers had the same spider integrated design, so I wouldn't have so many failures from over excursion. I will be ordering more for my future projects.

8 of 10 found this helpful

Was this review helpful to you?

B.W.

Toms River, NJ

Overall
Durability
Value
Features
Design
Usability
Good sub on the cheap!

February 29, 2012

When the tinsel leads on my older Infinity Ref series sub fried, I needed a quick replacement on the cheap. I know to stay wayyy clear of Boss, Pyle, Legacy, and especially Pyramid low end subs. When I read that FLI was made by VIBE I figured it couldnt be all that bad and took a leap of faith with this Frequency 12 sub, and quite happy that I did.

At 1st it sounded a bit strange and slow to respond, but now after about 20 hours of wear in time, it really is sounding much MUCH better. Currently it's running at 300rms, which is what the Infinitys rms was, and the reason I bought a 300rms(@ 4ohms) Kenwood amp. So even being underpowered, its sounding pretty sweet. The suspension on this sub is pretty tight, and surround is nice and thick. The cone feels fairly ridged also. All nice attributes in a sub. The spring loaded teminals are a plus, and make installation hasle free and quick.

One thing I especially love, and something that isnt mentioned in the description, is that the tinsel leads are woven into the spider (suspension). That is something more commonly seen in higher priced subs. Woven tinsel leads, as far as Ive heard, have better longevity than a non-woven lead. Kudos to FLI for that!

The hardware is even quite nice...it comes with nice hex screws to mount it with rather than cheap phillips screws. It also gives it a cleaner, classy look when installed.
My only gripe with this sub would be the pointless rubber boot. For one, it does absolutely nothing. Second, it doesnt even fit all that snug. Its only snug around the magnet, but the thicker pieces that sit on the basket just kind of flop around, and MAY give off some unwanted vibration when the sub is thumping. Best bet would be to just remove the rubber boot before install. You don't get to see it anyway, so no biggie. This sub is very well made for the price tag.

Now that Ive run it in a bit more, it might even be better sounding than the old Infinity it replaced. If SE gets any more back in stock, I will surely buy another. At $30 its a no-brainer and cheap enough to take the chance for yourself. Just make sure you give it some time to break in. I did just that, and like I said before, it sounds much better than when I 1st put it in my car. I would really like to hear it running at its full 400rms, but for now, the 300rms is doing the job nicely. In my opinion, I wouldnt power it with anything less than 300rms in a sealed enclosure. Very sure it would pound nice with less wattage in a ported box tho. Or even in a hatchback car, van, suv, pu truck, etc. In an enclosed trunk space, which I have, and in a sealed box. It's gonna need some juice.

7 of 8 found this helpful

Was this review helpful to you?

twiztedmindz

Clarksville, AR

Overall
Durability
Value
Features
Design
Usability
rubber boot

March 10, 2012

These subs are fierce for the price and i have 3 in a sealed box in suv and they kick. But the rubber boot mentioned is there for setting the speaker down without scratching the magnet. And to avoid some of the magnet attractions like anything metal.

5 of 7 found this helpful

Was this review helpful to you?

fikes

Bham, AL

Overall
Durability
Value
Features
Design
Usability
Good value sub

December 28, 2011

Seem well made with durable material, look great. Caught them on sale and had to give them a try. Not disapointed. Good value subwoofer, would compete with most major manufacturers low end line. (Prime, Cobalt, etc).

Cons. Took several weeks to break them in. Sometimes has a strange tone, apparently from cone material or hard plastic dust cap. Has some rubber pieces on back that have no apparent use except for looks. Had a lot of port noise (ported magnet) when mounted backwards

4 of 5 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $37.85

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 $53.99

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 $64.87

Dynamat Sound Dampening Trunk Kit

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

Your Price $87.63

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 $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

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

Your Price $74.99

12 oz. Can of Adhesive Spray

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

Your Price $8.97

Gold Plated Dual Terminal Banana Plug Connector

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

Your Price $1.99

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $6.99

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 FLI Audio Frequency 12 (FF12-F4) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 FLI Audio Frequency 12 (FF12-F4) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 FLI Audio Frequency 12 (FF12-F4) Subwoofers

4 Channel Amp

4 FLI Audio Frequency 12 (FF12-F4) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary

Manufacturer

Model Number

FF12-F4

UPC

086429230044

Weight

12.00lbs

Internal SKU

ff12f4

Internal Product ID

36655

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: FLI Audio Frequency 12 (FF12-F4)