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JBL GTO804

200W 8" GTO Series Single 4 ohm Subwoofer

Discontinued
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This item has been discontinued

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Also Available as Open Box (Like New) for $64.95


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Reduced-Depth, A Full Inch Shallower Than Most

A new, JBL-proprietary frame, unique inboard motor structure and new cone design create a woofer that is a full inch shallower than competing brands’ equivalent-sized models, expanding installation options. You can drive a compact car with sound that’s anything but compact.


Exceptional Venting For Increased Power Handling

Woofer motor structures heat up during use, causing distortion or power compression that reduces music’s dynamic range, robbing the sound of its realism. JBL uses vented motor structures and polepieces that get rid of more heat to deliver more serious bang.


Outstanding Audio Output, Low Distortion

With 200 watts RMS and 800 watts of peak power handling and a frequency response of 30Hz to 400Hz, the GTO804 changes the experience of listening to your favorite music in your car. And a progressive spider gives better control for lower distortion at excursion limits.


Outstanding Audio Output, Low Distortion

GTO804 changes the experience of listening to your favorite music in your car. And a progressive spider gives better control at excursion limits.




The Sound of quality

Harman Tour

Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.


General Features:

  • 8" Single 4 Ohm Grand Touring Series Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 200 watts
  • Impedance: Single 4 ohm
  • Polypropylene cone woofer
  • Hi-roll rubber surround
  • New proprietary frame and in-board motor structure
  • Vented polepieces
  • Frequency response: 30-400 Hz
  • Sensitivity: 91dB
  • 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.
GTO (JBL)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
8"
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.
800 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.
200 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.
2"
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).
30 - 400 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".
91 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.
11.50 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.
Polypropylene
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
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.
4-5-16"
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.
7"
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.
29.60 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.
16.42 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.
0.42
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.
0.450
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.
3.49 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.
6.37

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
86%
4 Star
12%
3 Star
0%
2 Star
0%
1 Star
2%

Average Attribution Rating

Durability
4.7
Value
4.9
Features
4.6
Design
4.8
Usability
4.7
Moe

Pompano Beach, FL

Overall
Durability
Value
Features
Design
Usability
Very pleased with the output of this beast!

January 8, 2014

I have always been into car audio but since getting married, I had to put all that stuff behind me until I realized how much I missed it. I have an Acura TSX with the stock premium sound system, but it was missing that thump that I was so used to. I decided on an 8" because I don't want to lose my trunk space. The JBL was the best bang for the buck. Out of the box, you can tell this was going to be awesome. It is heavy and worth its price in just the weight of the magnet. Still not sure why they call it a shallow mount subwoofer. I placed it in a small sealed enclosure (0.35 cubic feet) stuffed with polyfil and I paired it with the JBL GTO501EZ (amazing amplifier!!!!) into my stock system. This sounds great!!!!!. Though it took a bit of effort to tune in the amp (gain/bass boost) to my liking, I am very pleased. The only problem I have is that I can't keep the mesh subwoofer grill (bought separately) on it due to its excursion (hits the grill cover). I have owned almost all size of subs in my days and usually stuck with JL audio and Polk but this JBL combo is one of the best for the price. I had previously had a JL audio 8W3V3 in my old BMW X5 and this JBL sounds way better and louder but to be fair, it was a different system setup and an open trunk space as compared to the TSX. This JBL sub fills the car with huge bass when I need it without having to let the whole world I have it installed. Great buy and great service from Sonic!

10 of 15 found this helpful

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Sean

Peoria, AZ

Overall
Durability
Value
Features
Design
Usability
Great Subwoofer

February 29, 2012

I run 2 of these in a .6 cubic foot vented box, and all I can say is perfect. The highs are unbelievable for subwoofers, and the lows aren't too shabby either. Still shakes the car at 30hz frequencies in the vented box. I love these little things.

9 of 13 found this helpful

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ken

nevada

Overall
Durability
Value
Features
Design
Usability
awsome sub woofer!!!

April 1, 2014

For an eight inch subwoofer, this thing thumps...Great subwoofer at a great value...

13 of 22 found this helpful

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Marty

Canada

Overall
Durability
Value
Features
Design
Usability
Great sound

October 22, 2012

These subs sound amazing. Never doubted from the moment purchased that they wouldn't, being a JBL product. The sound is crystal clear and well worth the price. Highly recommend these and any JBL speakers for that matter!!

7 of 10 found this helpful

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Kenny

Oak Ridge, TN

Overall
Durability
Value
Features
Design
Usability
JBL GTO804

January 7, 2013

I have purchased this sub and installed it in a .6 cubic foot slot ported box tuned to 40hz. (Built with the RE Calculator on RE's website) This sub gets loud on my Rockford Fosgate 300.1 amp. I wouldn't recommend running this sub in a sealed box unless you just don't have the space. I started with it sealed first, and wasn't impressed. Running it ported is AMAZING! Especially for an 8" subwoofer.

Only complaint is that if you mount the holes level, the logo on the dust cap is crooked. Just my OCD.

8 of 13 found this helpful

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C. J.

Burbank , CA

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Durability
Value
Features
Design
Usability
Fantastic JBL

July 26, 2012

I have this sub for six months now and I listen to music (pretty loud) two hours every day on my way to work. Man this sub rocks with my twelve speakers. It hits any kind of bass perfectly. It takes a little space. I have 200 watts alpine amp four channel and i briged two channel for my sub and two channel for my twelve speakers. with pioneer head unit.Very happy. Good buy.

5 of 7 found this helpful

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Richard

Imperial, CA

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Durability
Value
Features
Design
Usability
nice!

November 2, 2011

I replaced the factory subwoofer in my 2010 Jeep Wrangler with a JBL GTO804, an 8" spacer ring, a Dual mono amp, and it sounds great! I was pleasantly surpirsed at how deep the bass was for such a small speaker. I originally wanted a larger subwoofer, but decided to keep the factory appearance by using the existing subwoofer enclosure. Overall, I'm very satisfied with this little beast and I get to keep all of my cargo space. The only gripe I have with this speaker are the binding posts. They stick up too high and it's difficult to get the speaker in to the enclosure.

7 of 11 found this helpful

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jwadd

palm bay, florida

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Durability
Value
Features
Design
Usability
Awesome Sub

March 9, 2014

Clean, clear outstanding sound. Give it the rated power and you are good to go!

5 of 8 found this helpful

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Bobby

Tampa, FL

Overall
Durability
Value
Features
Design
Usability
JBL GTO804

November 3, 2013

I have two of these installed in the saddlebags of my Road Glide. This is not the most optimal enclosure for them, but these babies pound. The bass is simply amazing considering they are only 8" drivers. I believe they'd sound even better in a car with an optimal enclosure. I strongly recommend these woofers. My only gripe is with the binding posts and the mounting hole. Pay close attention to JBLs documentation.

9 of 16 found this helpful

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That guy from the internet

Canada

Overall
Durability
Value
Features
Design
Usability
Decent little subs

October 1, 2012

For the price, they're excellent. I tossed two of these into a pair of ported boxes to put under the rear seats of my friends truck and they rock right along. They're not gonna be ear bleeding and bowel movingly loud, just nice and subtle with enough power to shake the hairs on your head if you want. I'd recommend sticking them in sealed boxes rather than ported ones but i'm more of a SQ guy, not SPL.

Can't really go wrong with them.

8 of 14 found this helpful

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Gjc18 karat

Leominster ma

Overall
Durability
Value
Features
Design
Usability
Jbl gt804

November 18, 2013

Excellent value and good bump. Replaced stock driver in Bazooka with this. Much better.

8 of 15 found this helpful

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Bmack

PA

Overall
Durability
Value
Features
Design
Usability
Jbl gto804

January 4, 2013

Works excellent in small box with little air space. This is my second one, the 1st one lasted 3 years of constant abuse.

5 of 9 found this helpful

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Stephen

Mooresville, NC

Overall
Durability
Value
Features
Design
Usability
Smooth

December 25, 2011

These subwoofers are incredibly smooth sounding considering the price. I have 2 of these in the Sonic vented box powered by a Infinity 1600a and they sound great in my Mazda 3. They certainly are not incredibly loud, but they are loud enough, while still maintaining the sound quality. If you are looking for something that won't eat up too much space I would definately recommend these.

6 of 11 found this helpful

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Matt

Florida

Overall
Durability
Value
Features
Design
Usability
Good Sound Quality

November 11, 2011

I am very happy with this sub. I'm running mine in a 0.4 cubic foot sealed box and she shakes the rearview mirror on 150 watts. I would recommend this to anyone who wants high quality bass in their vehicle, but doesn't have a lot of room for a big box.

5 of 9 found this helpful

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justin

lugoff, SC

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Durability
Value
Features
Design
Usability
soooo good

June 17, 2010

i had 2 of these in a corolla and they pounded hard for their size, they were better than my friends 12's

8 of 15 found this helpful

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Jackalope

Phoenix

Overall
Durability
Value
Features
Design
Usability
Worked for me.

January 28, 2014

I installed this in a 2004 toyota sienna van to replace the blown factory subwoofer. It is pretty much a dropin replacement with a little modification to the enclosure. This speaker sounds great!

6 of 12 found this helpful

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Earson

California

Overall
Durability
Value
Features
Design
Usability
Just Fine!

September 5, 2013

Great sound and punch. though it's a smaller sub it's the most value for your buck!

8 of 16 found this helpful

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kevin

marengo,il.

Overall
Durability
Value
Features
Design
Usability
it bumps!

March 16, 2013

This is a fantastic sub! I have it hooked up to an old-generic-200watt amp and it definitely exceeded my expectations. It is well worth the money and in my opinion it kicks like a sub of larger size. The deep bass tones are very nice!

9 of 18 found this helpful

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Lucky6Customs

Palm Coast, FL

Overall
Durability
Value
Features
Design
Usability
Killer Sub

March 7, 2013

This sub is a single coil with low rms. I have it on a crossfire 600 watt amp and for only getting the 500 ish amount of watts it plays 30hz bass notes with authority. It's a killer sq sub and I would recommend it to anyone looking for an 8

7 of 14 found this helpful

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remysylva

French Guiana

Overall
Durability
Value
Features
Design
Usability
Great value !

November 25, 2012

Très bon article et de bonne facture ! Bon pour les caissons de petite taille.

5 of 10 found this helpful

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Andrei

United Arab Emirates

Overall
Durability
Value
Features
Design
Usability
Great deal !!!

October 30, 2012

Excellent product. Very difficult to find in that size high output power. Thanks.

8 of 16 found this helpful

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MICHAEL

GARLAND, TX

Overall
Durability
Value
Features
Design
Usability
Rad

September 27, 2012

Running these in my rear deck in an IB setup and they are more than what I could ask for. Well worth the money and the bass they produce does not sound like they could only be 8s.

3 of 6 found this helpful

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Paul

Norfolk, Va

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Durability
Value
Features
Design
Usability
AWESOME SUB!

December 6, 2011

I definitly recommend this sub. I did not have a lot of room for a large box in my show car. At first I was skeptical about the size. After building my own sealed box and stuffing it with poly foam, it sounds like i have a whole trunk full of subs. I have had good luck with JBL in the past, and this sub definitly did not disappoint me.

4 of 8 found this helpful

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For

brighton MA

Overall
Durability
Value
Features
Design
Usability
Love it

November 4, 2011

I recommend this produt not only because it's a steal at the price but it works so good I have one in my car and I don't even need a box for it. It's so loud and works awesome!

6 of 12 found this helpful

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Varatos

Gadsden, AL

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Durability
Value
Features
Design
Usability
Another great JBL product

June 22, 2011

I was very satisfied with this sub. I used it for a rear-deck replacement sub, so it was in an infinite baffle enclosure. After sound dampening the rear deck this sub performs beautifully. Because the resonance frequency of this sub is so low you almost have to use some kind of High Pass Filter around 30 or 28Hz, but because of this low resonance it produces low frequencies very easily. In my experience this sub will handle more power than it is rated to handle and has held up well to my use. It should perform very well (and probably better) in a box. Overall, to be only an 8 inch sub, it performs and sounds like a 12 inch or better. I am extremely satisfied.

7 of 14 found this helpful

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Tim

Mooresburg, TN

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

March 23, 2009

I have 4 of little wonders being pushed by a R.F.150, 25 to Life amp. These will blow your mind. I've owned RF 15's, RF 12's, CV 12's, and Kicker comp 10's in the past and these little baby's rank up there with the best of them. I have them in a custom vented box built to factory specs. The Punch 150's birth sheet max watts was 2880 and the gain is almost wide open and they will handle it with ease. I built a box to fit in the back of a Durango, It is low enough that i can still haul stuff in the back but loud enough to turn heads. Great buy and a great product.

11 of 22 found this helpful

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john

liberal, KS

Overall
Durability
Value
Features
Design
Usability
Can't go wrong here

May 6, 2014

Nice hard hitting bass from a little 8 in. low watt sub. Mounted in a box recommended by Sonic under the rear seat of an '05 Silverado extended cab. Has the potential to blow you away in such a confined space. Sonic value & customer service is top notch!

5 of 11 found this helpful

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Jay

Sc nm

Overall
Durability
Value
Features
Design
Usability
Great 8s

April 23, 2014

Put two of these in a custom built box under the rear seat of a 2000 silverado (the 2000 n up body style) there in 1.25 cu ft each with tube ports in they sound AWESOME for 8s easily sound like a couple good tens n sound quality is awesome. It's powered by a infinity reference amp 300 rms @ 2ohms. Definitely recommend these subs and amp and sonic.

7 of 15 found this helpful

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Rob b

Stockton ca

Overall
Durability
Value
Features
Design
Usability
Bass in small space.

March 30, 2014

Great sub for pickups. I installed 2 of these in my regular cab silverado. One behind each seat in 0.35 ft box sealed. Its pretty loud and sounds great 250 watts RMS to each. Couldn't be happier bass in a regular cab truck is not easy.

4 of 9 found this helpful

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ßones

Key Largo/Islamorada, Florida

Overall
Durability
Value
Features
Design
Usability
Small Size, Small Price, Huge Sound

November 17, 2013

I decided to try this 8" woofer because of the success I've had with the GTO1014D's & GTO1214D's in the last few years.

For this project I built a one third cubic foot enclosure (minimum recommended size) for this GTO804. To replace a 3 cu. ft. box housing a JBL D140 15" woofer I used for my 'kick' drum. I scavenged the same 70w Parts Express subwoofer plate amp for this project and have to say this GTO804 in thie timey 10"×10" box puits out within 3-6 db of the 15" JBL D140 n the 3³ ft. box. This is one awsome 8" Woofer!

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broc

richfield ut

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Durability
Value
Features
Design
Usability
these things are very good

August 21, 2013

I have 2 of these behind the seat of my crew cab chevy in a ported box, and these things kick a**! Im only putting about a 150 rms a piece to them no they will not split your ear drums and make it hard to breath but they do sound awesome i would highly recommend these to anybody

5 of 11 found this helpful

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Mr.B

Dupont/WA

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Value
Features
Design
Usability
Mr.B

February 11, 2013

Great price and great product! Small speak packs a large punch! Will shop again!

7 of 15 found this helpful

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dfg

dfgh

Overall
Durability
Value
Features
Design
Usability
great

December 12, 2012

they are cheep and under rated with great sensitivity for a hi power sub you cant go wrong i put one in mt work truck and its has all most the same out put ass the 2 10s i have in my car with 1/2 the power very happy with this sub

7 of 15 found this helpful

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chettrick

Malabar, FL

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Durability
Value
Features
Design
Usability
Solid punch

December 3, 2012

Got two of these to put under rear seat of truck. With the GTO 804EZ, they are loud and solid. A distinct punch, not a fuzzy bump. Every one I played these for were very impressed with the sound.

6 of 13 found this helpful

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Chuck D

Madison Wi.

Overall
Durability
Value
Features
Design
Usability
JBL 8 inch GTO 804 subwoofer

November 20, 2012

I am pleased with the performance of my JBL 8 inch sub. I have it securely mounted in a sealed proportianate sub enclosure made by Sound Ordanance. I have approxiamately 150 watts driving it. I am not interested in booming bass which is overkill. The JBL handles the power that my fosgate amp gives it. The bass is not overwhelming but very tight and enjoyable at higher volume. In a car, you don't need more than one smaller sub and four other speakers to hear everything that has been recorded. 300 watts from one Amp and another 80 watts from the head unit amp is all I need. My system sounds marvelous.

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Green Chemist

Boston, MA

Overall
Durability
Value
Features
Design
Usability
Excellent Small Enclosure 8" Sub

October 27, 2012

I had a limited installation depth, and a reasonably small enclosure size maximum. This was for the cargo tray area of a 2008 Mazda5. I modeled (WinISD) out a .35 cuft sealed enclosure with 225 w/rms (from an Aura sound RPM2150 bridged at 4 ohms). The driver barely reaches xmax at this power level even with no subsonic filter. A very safe setup.

After installing and tuning, I'm very impressed with this driver. It gave me the bottom end I was missing with my factory setup. I hate using words like "tight" and "accurate" but this setup as described above is just that.

Keep feeding it on the higher end of the recommended RMS and you'll be very happy with this driver given the price and size/space of the installation.

I would have liked the option for a dual voice coil version for multiples.

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Charles

New Port Richey, FL

Overall
Durability
Value
Features
Design
Usability
Great little sub for the money

May 31, 2012

Actually ordered 2 of these and placed them in .35cu ft sealed each and fed the 400 watts at 2 ohm final load. These little things are impressive. Good low end, play tight and musical. Definitely worth the money.

5 of 11 found this helpful

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Brownsfan

Levittown, PA

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Durability
Value
Features
Design
Usability
Excellent sound

April 26, 2012

Great low end sound at a low end price. Really added boom for the bucks.

5 of 11 found this helpful

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cap

valdosta, ga

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Durability
Value
Features
Design
Usability
jbl gto804 comment

February 10, 2012

These speakers are awesome to be so small. This 8" is packing a lot of bass and bottom. This is an awesome item to purchase even if its simple or an outrageous install.

3 of 7 found this helpful

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Isaac

Canada

Overall
Durability
Value
Features
Design
Usability
Wow!

December 13, 2011

Basically I needed to downsize the bass on my rhd 93 mr2 because I had an orion 12 that took up mad space in the whip and because of the complaints, the overkill inaccurate bass and the waste of space I was thinking about an 8" sub. Because of my prior experience with jbl amps i knew this looked good, and boy this thing is not even even broken in and it hits almost all types of bass hard excluding the extremely low frequency's, shes running at 220rms with a Cerwin Vega sx220.2 and matched to the 7" bd small truck box.

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Kevin

Canada

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Value
Features
Design
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Fabulous little sub

September 17, 2011

I bought two of these to give my system some needed depth. I don't have tons of power running to them but for a little sub they pound very hard. I'm not looking to shake my fillings out or anything like that but one would have done the job. Though I couldn't find the recommended box specks on the Sonic site they are in a smallish ported box 10"x10"x24" and sound amazing. I can't see anyone not loving them!

3 of 7 found this helpful

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etienne

Belgium

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Value
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Design
Usability
good product

January 10, 2010

a very good powerful loudspeaker

5 of 11 found this helpful

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Chris

Madison, WI

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Value
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Phenomenal performance and Amazing Value.

September 18, 2013

I love this driver. I used WinISD to design a very small slot-ported box (9"H x 15"D x 20"W) that will play very flat down to around 35Hz. Whatever you do, design the enclosure around this speaker and it will perform. Pair this tiny monster of a subwoofer with an adequate amp and it will surprise you! My only want is that It was Dual Voice Coil for more wiring and amplification options.

4 of 10 found this helpful

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jucie

gonzales la

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Value
Features
Design
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wish i could get more of these or be sponsored by JBL

April 29, 2011

These are some baddd 8's I'm so sad I blew two of them with a 1200 watt amp though they were the best speakers I ever invested in they was slammin moving my dash in a single cab chevy

5 of 12 found this helpful

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CHUCK

GRAHAM, WA.

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Durability
Value
Features
Design
Usability
JBL GTO804

April 10, 2012

This is a great speaker, I have them in all my vehicles and for the cost of the speakers, you can't beat the sound, really deep bass without the boom, and the clarity is so good, very good speaker.

4 of 11 found this helpful

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atom

dallas

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Value
Features
Design
Usability
jbl gto 8

November 6, 2011

Great sub for the price. They are replacing my Cadence CVL 500's. I ordered one to give it a try on my Sundown amp. Loved the sound so much, I ordered another. I recommend this sub to my friends for SQ, being a SQ type of Guy. Thanks JBL!

7 of 17 found this helpful

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Eduardo

Brazil

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Value
Features
Design
Usability
Great

October 24, 2010

its perfect and beautiful!!

7 of 17 found this helpful

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Philip

San Diego, CA

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Features
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Excellent small space sub!!!

September 17, 2013

I used this sub in a custom enclosure that fit into the OEM jack space in the side of a rear panel. The enclosure is very tiny and very limited space. Filled it with polyfill, and this sub had plenty of bass for what i needed. I didn't want to over power my stock Bose speakers and this was the perfect addition. Would probably sound even better with a bigger enclosure!!

6 of 16 found this helpful

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Stasis

Houston

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Value
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Design
Usability
Good woofer

January 15, 2013

Packs a punch for a 8 inch woofer. Like it alot especially for the price. Can't beat it

8 of 20 found this helpful

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Mil

Canada

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Value
Features
Design
Usability
Big bass from small space.

March 17, 2013

My car (2012 buick verano) was originally equiped with a bose sound system that sounded pretty well but needed some more sub-bass to suit my music taste, so i bought two of those 8" subwoofers that I installed in fiberglass custom made boxes (0.35cuft) and drive those subwoofers with 200wrms/woofer. This way i didn't loose any usable space in the trunk but got enough bass to sound exactly like a good 12" subwoofer without having to use a uge box. Those little subwoofers pound hard and provide excellent tight and acurate bass.

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John Kerr

Boca Raton, FL

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Value
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Design
Usability
Lasted 10 minutes

February 23, 2012

Never have blown a woofer before, purchased two of these for a custom enclosure for my Corvette, had read the reviews, product looked great. Showed up at my installer's shop and he looked at me strange and said "nice woofers for the money, but they won't last". I figured he was being a smart ass so we went along with the install. Have an Arc Audio mini 500 powering them, 10 minutes into playing them at 1/4 volume they locked up, shorted out and blew the fuses on the amp. I have been into car audio since 1986, have never destroyed a woofer before, very disappointed, redesigning the box for a single 12.

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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

Dynamat Sound Dampening Trunk Kit

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

Your Price $94.95

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 $69.99

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 JBL GTO804 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 JBL GTO804 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 JBL GTO804 Subwoofers

4 Channel Amp

4 JBL GTO804 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 1 question and 4 answers
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Why did you choose this?
Sonic Electronix Store
Already have JBL p660c components in both my vehicles. Consider JBL to be one of the best quality and value for the money in car audio equipment when it comes to speakers. After researching these subwoofers and reading specifications, I decided this would be my best choice.
Trevor G on Oct 22, 2014
I chose this woofer based on the reviews and its small enclosure requirements
mark w on Sep 5, 2014
JBL makes the best subs handsdown
Jeffrey V on Sep 23, 2014
performance per dollar
Eric V on Sep 1, 2014

Product Summary

Manufacturer

Model Number

GTO804

UPC

0500361184222

Weight

10.00lbs

Internal SKU

gto804

Internal Product ID

7443

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 GTO804

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