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JBL P1224

12" Dual 4 ohm Power Series Car Subwoofer

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JBL P1224

12" Dual 4 ohm Power Series Car Subwoofer

$149.95

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  • 12" Dual 4 Ohm Power Series Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 400 watts
  • Impedance: Dual 4 ohm
  • Kevlar paper cone woofer
  • Hi-Roll rubber surround
  • Plus One cone technology features more cone area to deliver an audible increase in bass output and efficiency
  • Die-cast frame ensures that the structure stays centered for long-term reliability
  • Sensitivity: 94 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Power (JBL)
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.
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.
3"
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).
23 - 450 Hz
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".
94 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.
14.00 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
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.
Reinforced Paper
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
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.
1.0 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.
1.0 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.
1.75 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.
1.75 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.
6-13/16"
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.
27.00 Hz
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.
54.60 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.
0.54
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.
0.58
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.
2.00 ohms
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.
7.40
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
81%
4 Star
19%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
4.8
Features
4.7
Design
4.7
Usability
4.5
No waaaaaay

Philadelphia, PA

Overall
Durability
Value
Features
Design
Usability
No waaaaaay

November 28, 2009

So I got this specific sub in a JBL preloaded enclosure (JBL P1220). Absolutely ridiculously loud. Giving it 600W RMS at 2ohms off of a Pioneer Premier D1200M. Sound quality is sick. Amp is pushing it pretty crazy. I think that this could easily be mistaken for 2 12" subs. My deck only has 2.2V outputs so I could be pushing this way harder, and my gain is set pretty conservatively. When I add a little bass boost on my amps remote it pounds harder then I would ever need. Lots of pressure. I recommend getting the P1220 if you can find it which is this sub in a sick big ol' awesome looking ported box. Be careful with this sub, bass this loud can't be good for hearing.

9 of 11 found this helpful

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Daniel

Nashville

Overall
Durability
Value
Features
Design
Usability
This sub is a tank

October 4, 2011

Since receiving this sub from Sonic 6 months ago, I've been beating it within an inch of its life, and it's a tank by all means. It hits very hard and digs way down low. We're talking 20 hz low. I played a 20 hz test tone, and I thought my trunk lid was going to give. Seriously, this single 12 inch sub makes my wipers bounce on the windshield. I'm guessing it's hitting every bit of 138 dbs. Not bad from a single 12 in a super low tuned box. I'm a SQ guy, but there's no way to avoid praising the output of this thing. I feel silly bragging about my trunk lid violently trying to give, but I digress. This sub also makes bass a plenty at lower volumes for lower listening levels. I'm impressed.

I have a Boston Acoustics GTA-1000m (also from Sonic) pushing it with around 750 watts RMS by my calculations, as the coils wired in parallel test at 2.5 ohms, not 2 ohms. Definitely take that into consideration when setting gains with a digital multimeter.

It's in a 2.5 net cubic feet box tuned to 25 hz with lots of port area for SQ, output, and super low bass extention. I have since concluded that I built my box too big by about a .25 - .5 cubic feet margin, as it bottoms out a little above tuning before the port begins to decrease the excursion. I would blame that on the fact that it's overpowered, but I know boxes, and that's more of a factor in this problem than the power, as it takes the power quite well for a good while.

However, with that said, I've bottomed it out and had the coils stinky more times than I can count, and it continually delivers up the SQ and the immense output. And, speaking of its SQ, it's hands down the best SQ from any subwoofer that I've experienced personally. I want to hear all the little nuisances with drums and bass guitar, and I get it for sure. No mud, just powerful reproduction of the recording. And, of course, throw in some Bass Mekanik or rap or whatever, and you have flexing car panels all over.

The only downside of this sub is the big, funky basket. It measures 14 5/8 inches across, yet has a typical cutout measurement for a 12. So, good luck finding a prefab for this thing. And, it sticks out of the box by 2 inches. The cone is exceptionally awesome looking Kevlar impregnated paper though. That may be why it's so efficient at lower power levels.

Nonetheless, this product ended my incessant search for an all around excellent performing subwoofer. Get one (or 2!!) while they can be had. JBL out did themselves with this one.

7 of 8 found this helpful

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adelphia83

St. Charles, MO

Overall
Durability
Value
Features
Design
Usability
Holy Cow

August 21, 2011

I've used a lot of subs in the past, high dollar ones and cheap ones alike. This is solid quality right here. Pictures do not do it justice, it is BIG and the motor assembly is HEAVY. It's larger and heavier than my old RE SX12's which were twice the price. It will fit most standard 12" cutouts (11 1/16 inch is not that uncommon), but make sure your box can accommodate its 14 5/8" frame, many prefab boxes won't.

I tossed two of these monsters into two custom 2.5cf ported enclosures tuned to 35hz. Because they are so big, the outer ring blocks a small portion of the port, so I have no idea what that's doing to the tuning. Nonetheless it is loud and the clarity rivals some of the best I've heard. Amp is a HiFonics BXI1608D, rated at 1600 x 1 @ 1 ohm, so conceivably each woofer should be getting 800W RMS each.

I'd stick with JBL's recommended enclosures, I get the feeling mine are a little too large, and that these may have more potential in a smaller box. They are plenty loud enough that I'm probably going to ditch the ported boxes and go sealed to free up some trunk space and get a flatter frequency response.

Buy these, they are practically being given away at this price.

7 of 8 found this helpful

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Kevin

Mesa , AZ

Overall
Durability
Value
Features
Design
Usability
Great Great Sub!!!

June 14, 2009

This sub is a beast for a mid-priced sub. I love it, Sounds very clean. What ever you listen to this sub will do the job weather its Rap, rock, Metal, Drun' Bass, Classic Rock they all sound fantastic. I have one in my 2001 S10 Pickup Ext Cab running off a Kenwood KAC-9104D Mono amp. I def would recommend the JBL P1224 to anyone. Just make sure you get a box that fits this subs diameter.... The outer frame is 14 5/8" so plan ahead on that, What a BEAST.

8 of 10 found this helpful

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Geege

Hibbing, MN

Overall
Durability
Value
Features
Design
Usability
Everything I thought it would be

July 13, 2011

I got this sub because I once upon a time had a much older model that I liked. This definitely doesn't disappoint either. It's very solid and quality constructed. Much heavier than I thought it would be too. I put this in a 1.75 cubic foot ported box according to JBL's recommendations and paired it with the JBL MS-A5001 amp and it's loud, clean, and accurate. I threw everything I had at it from metal to hip hop and it all sounded great. It's no dub 7, but it is a fraction of the price including the materials cost to custom build the box. One additional note to the durability of this sub. The box this came in looked like Ace Ventura delivered it. As badly damaged as the box was I was almost sure it was broken, but it definitely wasn't.

7 of 9 found this helpful

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Rick

Crescent, OK

Overall
Durability
Value
Features
Design
Usability
Great buy!

February 10, 2011

I LOVE THIS WOOFER!!!! it plays both mids and lows very well and hits precise, it took a while to get broken in but now it's so clean! I'm currently powering it with a kicker zx300.1, it gets the job done but this is a power hungry sub and will need quite a bit more to reach it's potential...

7 of 9 found this helpful

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Ray

Albany, NY

Overall
Durability
Value
Features
Design
Usability
P1224

February 10, 2009

These don't fit in any prefab boxes out there, so plan on making your own. The specs JBL gives for a box are extremely conservative, like you can put double RMS and not worry about bottoming out, but you can get a much nicer sounding box if you went for a larger port. They sound great and get loud and take their power well

7 of 9 found this helpful

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Allister

Canada

Overall
Durability
Value
Features
Design
Usability
Over The Top

July 12, 2010

With the large outer ring I had a problem finding a quality enclosure for this sub so I had one custom made for it. While that was quite expensive, it is a perfect enclosure for this speaker. That means that the speaker is going to sound at it's best. With a GTO 7001 connected and the sub set at 2 ohms, this single 12" sub woofer hits harder than Bruce Lee. Well, maybe not that hard but pretty hard. At low volume it still produces that great low end that grabs you by the poo poo and makes you sit up and listen. There is a beast in my trunk and it's name is JBL!

6 of 8 found this helpful

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Andrew

La Follette, TN

Overall
Durability
Value
Features
Design
Usability
JBL subs

March 9, 2010

i had two of these in my blazer ran off a lanzar opti drive 1400d and this setup got really loud and i had the subs in a 5.0 cubic foot box^3 tuned to 34hz and i would have to say it was the best sounding system i have ever owned

6 of 8 found this helpful

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Walter Lamb

Zephyrhills Florida

Overall
Durability
Value
Features
Design
Usability
Great Sub

January 30, 2010

I have 8 of these subs in a explorer sport with only 3200 watts to them and the pressure is unreal. Could push so much more power and not even think twice about it. This sub is a monster. Great sub

6 of 8 found this helpful

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Sir Walter

White Plains, NY

Overall
Durability
Value
Features
Design
Usability
(:

July 13, 2009

I fried my sub so my friend let me use his.

It was this particular sub in a ported pre-fab box, seeing about 650 watts from my Hifonics 2010D

I have to say i am extremely impressed by it's performance, especially for being in a pre-fab ported enclosure; it retained good sound quality. By the time my friend was finished with it, it was well worn in already obviously.

I like loud systems and this definitely did the job for cruising around with some loud bass daily, virtually no distortion, even when you crank it full tilt.

Considering buying two for myself to replace an audioque hdc315 on 2000rms

6 of 8 found this helpful

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Brad

Mooresville, IN

Overall
Durability
Value
Features
Design
Usability
Awesome

February 13, 2009

I had one of these in a ported box, and it was freaking loud. I had it in a 2002 Eclipse and it made the back window bow out when it hit. I had it hooked up to a 2000 watt class d precision power amp, that was a great set up.

4 of 5 found this helpful

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Fernando

South San Francisco, CA

Overall
Durability
Value
Features
Design
Usability
Best

February 8, 2009

This product is the best I have used.

4 of 5 found this helpful

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Ronald

New London CT

Overall
Durability
Value
Features
Design
Usability
you cant get anything better for the price!

January 17, 2009

I have a set in a 96 Z28 Camaro. They will make your site go blurry, they shake the ground around you. EVERYONE will turn their heads! I do recommend using the grand touring series 1200watt amp with them. Hook them up in line, in series.

5 of 7 found this helpful

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kerry

angier nc

Overall
Durability
Value
Features
Design
Usability
p1224 jbl sub

July 13, 2011

This is a very clean, hard hittin, super sounding sub. I would definitely recommend anyone to buy this over any other sub out there, in this price range. Thumbs wayyyyyyy up!!!!!!

4 of 6 found this helpful

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JQ

Texas

Overall
Durability
Value
Features
Design
Usability
JBL

May 5, 2011

Big heavy monsters.. they love to hit low low low.. custom box needed.. most prefab boxes wont work with these.. you need a super strong box as well or you will rip cheap boxes apart.. they are optimized in sealed boxes.. but if you listen to mixture of rock and pop.. run ported.. tuned to 34hz to factory TS parm's for box size.. been running 2 of these for 3 years.. over powered and still banging like new.. I can't seem to blow them..

4 of 6 found this helpful

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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 $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 $64.99

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 $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 $8.99

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 JBL P1224 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 JBL P1224 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 JBL P1224 Subwoofers

Mono Amp

4 Channel Amp

4 JBL P1224 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

P1224

UPC

050036118507

Weight

33.00lbs

Internal SKU

p1224

Internal Product ID

12258

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: JBL P1224

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