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

Alpine 8" Car Subwoofers

Compact Alpine 8” subwoofers for tight spaces and powerful bass.

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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.
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.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
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.
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.
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.

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.
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.
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".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
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.

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.
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Alpine S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer

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Alpine S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.6 dB

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Alpine R2-W8D2

1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer

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Alpine R2-W8D2

1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.56"
• Sensitivity: 83.6 dB

Save 10% at Checkout!
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$299.95

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Like New from: $269.95
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Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohms Car Subwoofer

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Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohms Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.7 dB

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FREE 2-day shipping to OH. Get it Thu, Nov. 20
VIP Star Icon

VIP Product Get $16.79 in rewards to spend later

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1
Was $250.00 Details
Save $82.05
$167.95

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Alpine R2-W8D4

1000W Peak (350W RMS) 8" R2-Series Dual 4-ohm Car Subwoofer

R2-W8D4 big
Go to item page Right Arrow Icon of Right Arrow

Alpine R2-W8D4

1000W Peak (350W RMS) 8" R2-Series Dual 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.56"
• Sensitivity: 83.7 dB

Save 10% at Checkout!
shipping truck icon
FREE 2-day shipping to OH. Get it Thu, Nov. 20
VIP Star Icon

VIP Product Get $30.00 in rewards to spend later

empty

Was $360.00 Details
$299.95

In stock

Only 2 Left!

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Alpine R2-W8D2 2nd Gen - New (Damaged Packaging, Product A+)

1000W Peak (350W RMS) 8" R-Series Dual 2-Ohm Car Subwoofer

R2-W8D2 big
Go to item page Right Arrow Icon of Right Arrow

Alpine R2-W8D2 2nd Gen - New (Damaged Packaging, Product A+)

1000W Peak (350W RMS) 8" R-Series Dual 2-Ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (H.A.M.R) Surround
• Impedance: Dual 2 ohm
• Mount depth: 4.38""
• Sensitivity: 83.6 dB

shipping truck icon
FREE 2-day shipping to OH. Get it Thu, Nov. 20

empty

Was $360.00 Details
$269.95

In stock

Add to Cart

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (H.A.M.R) Surround
• Impedance: Dual 2 ohm
• Mount depth: 4.38""
• Sensitivity: 83.6 dB

 
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    Alpine 8" Car Subwoofers Information

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