1. Home
    2. /
  2. JBL Store
    3. /
  3. JBL Car Audio & Electronics
    4. /
  4. JBL Car Subwoofers
    5. /
  5. JBL 8" Car Subwoofers

JBL 8" Car Subwoofers

JBL 8" car subwoofers will provide your vehicle with the bass and lows that you desire.

Small 8" car subwoofers are excellent for vehicles that have extremely limited space or for replacing factory 8" subwoofers. They are ideal for pumping out bass without sacrificing trunk space.

filter-icon Filters & Sort
Filters
JBL ✕
Clear Filters
Reset Done
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.
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.
Refers to the diameter of the subwoofer, measured in inches.
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.
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.
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.
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.

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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".
This is the color of the speaker's or subwoofer's cone.
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.

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.
JBL Stadium 82SSI

1200W Peak (400W RMS) 8” Stadium Series 2- or 4-Ohm Component Subwoofer with SSI™

Spend 300+ and Save with Code "Madness"
Stadium 82SSI main
Go to item page
JBL Stadium 82SSI

1200W Peak (400W RMS) 8” Stadium Series 2- or 4-Ohm Component Subwoofer with SSI™

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Glass Fiber /paper laminate Cone
• Nitrile Rubber Surround
• Single Selectable impedance (2 or 4-Ohms)
• Mount depth: 5.348"
• Sensitivity: 91 dB @ 2.83V

shipping truck icon
FREE 2-day shipping to VA. Get it Thu, Mar. 30
install icon
Spend 300+ and Save with Code "Madness"

empty

List $299.95
$259.95

In stock

Add to Cart

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Glass Fiber /paper laminate Cone
• Nitrile Rubber Surround
• Single Selectable impedance (2 or 4-Ohms)
• Mount depth: 5.348"
• Sensitivity: 91 dB @ 2.83V

Item Added to Cart.

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
20 Square Feet of Sound Dampening Material

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

$69.99

Add
Six Function Digital Multimeter

Perfect addition to any toolbox

$8.99

Add
View all Accessories Continue to cart
JBL Stadium 82SSI

1200W Peak (400W RMS) 8" Stadium Series Selectable Smart Impedance 2 or 4 Ohm High-Performance Subwoofers

Spend 300+ and Save with Code "Madness"
Stadium 82SSI main
Go to item page
JBL Stadium 82SSI

1200W Peak (400W RMS) 8" Stadium Series Selectable Smart Impedance 2 or 4 Ohm High-Performance Subwoofers

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Glass Fiber/Paper Laminate Cone Cone
• Nitrile Butadiene Rubber NBR Surround
• Impedance: Single 2 or 4 ohms
• Mount depth: 5.375"
• Sensitivity: 91 dB

shipping truck icon
FREE 2-day shipping to VA. Get it Thu, Mar. 30
install icon
Spend 300+ and Save with Code "Madness"

empty

List $299.95
$259.95

In stock

Only 2 Left!

Add to Cart

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Glass Fiber/Paper Laminate Cone Cone
• Nitrile Butadiene Rubber NBR Surround
• Impedance: Single 2 or 4 ohms
• Mount depth: 5.375"
• Sensitivity: 91 dB

Item Added to Cart.

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
20 Square Feet of Sound Dampening Material

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

$69.99

Add
Six Function Digital Multimeter

Perfect addition to any toolbox

$8.99

Add
View all Accessories Continue to cart
Lowest price in 30 days
JBL ARENA8

8-Inch Car Subwoofer

JBLSUBA8AM main
Go to item page
JBL ARENA8

8-Inch Car Subwoofer

• 1200 watts Max
• 400 watts RMS
• Reinforced Paper Cone
• Nitrile Butadiene Rubber NBR Surround
• Aluminum Basket
• Gold plated Speaker Terminal
• Dual Voice Coil

shipping truck icon
FREE shipping to VA. Get it Tue, Apr. 4

empty

List $449.95
$399.95

Available

Ships in 10-14 days

Add to Cart

• 1200 watts Max
• 400 watts RMS
• Reinforced Paper Cone
• Nitrile Butadiene Rubber NBR Surround
• Aluminum Basket
• Gold plated Speaker Terminal
• Dual Voice Coil

Item Added to Cart.

50-pack of KN95 masks

Supreme and comfortable KN95 PFF2 Mask Respirators

$37.40

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
20 Square Feet of Sound Dampening Material

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

$69.99

Add
View all Accessories Continue to cart
JBL Stage 82 (JBLSUBST82AM)

800W Peak (200W RMS) 8" Stage Series Single 4 Ohm Car Audio Subwoofer

Stage 82 main Out of stock
Go to item page
JBL Stage 82 (JBLSUBST82AM)

800W Peak (200W RMS) 8" Stage Series Single 4 Ohm Car Audio Subwoofer

• Peak Power: 800 watts
• RMS Power: 200 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohms
• Mount depth: 3.9"
• Sensitivity: 88 dB

empty

List $89.95
$69.95
Add to Cart

• Peak Power: 800 watts
• RMS Power: 200 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohms
• Mount depth: 3.9"
• Sensitivity: 88 dB

Item Added to Cart.

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
20 Square Feet of Sound Dampening Material

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

$69.99

Add
Six Function Digital Multimeter

Perfect addition to any toolbox

$8.99

Add
View all Accessories Continue to cart
 
    clear all items
    Related Categories

    JBL 8" Car Subwoofers Information

    JBL carries a range of 8" car subwoofers for the bass you've been looking for. JBL engineers competition grade subwoofers that will both satisfy and last. Great for subwoofer boxes and other installations, these 8" JBL subs are an easy choice.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?

    Add vehicle

    Save up to 10 different vehicles in your garage

    2 | Make
    3 | Model
    Where to find vehicle info | Shop without vehicle

    Select Additional Details for or Change Vehicle

    Can't find your vehicle? Click here and we'll help.

    Find products that fit

    Find gear for your vehicle – fast.

    2 | Make
    3 | Model

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    < Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    < Back
    Track order
    Call our experts
    Instagram Youtube