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Car Subwoofers for your 1981 528i

Find the best car subwoofers and sub boxes to enhance your car audio system. We're the #1 subwoofer experts since 2000. Boost your bass with our selection of component subwoofers, subwoofer boxes, subwoofers with amplifier packages, and subwoofer installation accessories. Explore our selection and find the best options for a component subwoofer or two, and find loaded, sealed, ported, and bandpass enclosures, as well as complete subwoofer bass packages.

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Rockford Fosgate Power T2 T2S2-16

5000W Peak (2500W RMS) 16" Power Series Single 2-ohm Car Subwoofer

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5000W Peak (2500W RMS) 16" Power Series Single 2-ohm Car Subwoofer

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Single 2 ohm
• Glass Fiber Cone
• Injection molded foam Surround
• Mount depth: 10.47"
• Sensitivity: 90 dB

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$1,299.99

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JL Audio 12TW3-D8

400W RMS 12" TW3 Series Dual 8-ohm Shallow Subwoofer

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400W RMS 12" TW3 Series Dual 8-ohm Shallow Subwoofer

• RMS Power: 400 watts
• Impedance: Dual 8 ohm
• Polypropylene-Mica Cone
• Rubber Surround
• Mount depth: 3.50"
• Sensitivity: 84.23 dB

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$569.99

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MTX SLH15X2

Empty Dual 15" Ported Enclosure

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Empty Dual 15" Ported Enclosure

• 15" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.02 cubic feet
• Mounting hardware included

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$229.95

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American Bass VFL Comp Signature 18" (VFLCOMP-1811)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 1-ohm Subwoofer

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10000W Peak (5000W RMS) 18" VFL Competition Series Dual 1-ohm Subwoofer

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 1 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

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List price $1618.44
-38% $1,002.36

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JL Audio HO112RG-W3v3

500W RMS 12" W3v3 H.O. Wedge High-Output Ported Loaded Subwoofer Enclosure Box with Grille Included

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500W RMS 12" W3v3 H.O. Wedge High-Output Ported Loaded Subwoofer Enclosure Box with Grille Included

• 500 Watts RMS
• Sensitivity: 87.15 dB
• 2 Ohm Final Impedance
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor
• JL Audio's patented, chamber-coupled port design
• Gray carpet wrap
• fine-tuned through extensive real-world listening

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$829.99

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Massive Audio SUMMO64XL

400W Peak (200W RMS) 6.5" Summo Series Dual 4-ohm Car Subwoofer

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400W Peak (200W RMS) 6.5" Summo Series Dual 4-ohm Car Subwoofer

• Peak Power: 400 watts
• RMS Power: 200 watts
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• EROM Foam with red stitching surround
• Impedance: Dual 4 ohm
• Mount depth: 4.37"
• Sensitivity: 85 dB

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List price $134.99
-22% $104.99

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Rockford Fosgate Punch P3 P3D4-15

1200W Peak (600W RMS) 15" Punch Series Dual 4-ohm Car Subwoofer

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1200W Peak (600W RMS) 15" Punch Series Dual 4-ohm Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Anodized Aluminum Cone
• Santoprene Rubber Surround
• Sensitivity: 86 dB

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List price $339.99
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MTX SLH12

Empty Single 12" Ported Sledgehammer Enclosure

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Empty Single 12" Ported Sledgehammer Enclosure

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.73 cubic feet
• Mounting hardware included

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$139.95

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• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.73 cubic feet
• Mounting hardware included

Wet Sounds RECON 10 FA-BG

400W Peak (200W RMS) 10" RECON Series Dual 4-ohm Free Air Marine Subwoofer (Black)

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400W Peak (200W RMS) 10" RECON Series Dual 4-ohm Free Air Marine Subwoofer (Black)

• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Composite cone
• Santoprene Rubber surround
• Mount depth: 4.62"
• Sensitivity: 89 dB

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• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Composite cone
• Santoprene Rubber surround
• Mount depth: 4.62"
• Sensitivity: 89 dB

Limited time!

Kicker CompC CWCS124 (44CWCS124) (Open Box, Great)

600W Peak (300W RMS) 12” CompC Series Dual 4-ohm Car Subwoofer

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600W Peak (300W RMS) 12” CompC Series Dual 4-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Injection Molded Polypropylene Cone
• Polyurethane Surround
• Impedance: Single 4 ohm
• Mount depth: 5-3/8"
• Sensitivity: 88.3 dB

10% Off Open Box!
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List price $139.99
-40% $83.99
$75.59 with coupon | Price details

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• Peak Power: 600 watts
• RMS Power: 300 watts
• Injection Molded Polypropylene Cone
• Polyurethane Surround
• Impedance: Single 4 ohm
• Mount depth: 5-3/8"
• Sensitivity: 88.3 dB

Wet Sounds STEALTH AS-10

500W Peak Loaded Single 10" Sealed Amplified Marine Subwoofer Enclosure

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500W Peak Loaded Single 10" Sealed Amplified Marine Subwoofer Enclosure

• 10" Amplified Loaded Subwoofer System
• 500 watts Peak
• Built-In Class D amplifier
• Variable Bass Boost
• Wired remote bass level controller

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$899.99

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• 10" Amplified Loaded Subwoofer System
• 500 watts Peak
• Built-In Class D amplifier
• Variable Bass Boost
• Wired remote bass level controller

NVX NE82S

Dual 8" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.80 Cu. Ft. with Polyfil and NVX Logo

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Dual 8" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.80 Cu. Ft. with Polyfil and NVX Logo

• 8" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .80 cubic feet
• Premium Black Carpet with Black NVX Logo

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List price $95.99
-17% $79.99

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• 8" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .80 cubic feet
• Premium Black Carpet with Black NVX Logo

Atrend 15KSV

Empty Single 15" SPL Vented Enclosure for Kicker L7R and L7S Series Subwoofers

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Empty Single 15" SPL Vented Enclosure for Kicker L7R and L7S Series Subwoofers

• 15" Single SPL Ported Subwoofer Enclosure
• Fits Kicker L7R and L7S series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 3.25 cubic feet

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List price $209.99
-19% $169.95

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Kicker DCWR102 (48DCWR102)

1600W Peak (800W RMS) Loaded Dual 10" Vented Enclosure

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1600W Peak (800W RMS) Loaded Dual 10" Vented Enclosure

• Ported enclosure with 2 10" CompR Series Subwoofer
• 800 watts RMS (1600 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 28-7/16" L x 14" H x 14-1/2" W x 17-5/16" W2

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List price $549.99
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-27% $399.96

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Belva BPKG210v2

1000W Package Includes: 2 10" Subs, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

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1000W Package Includes: 2 10" Subs, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

• Works with both Factory and Aftermarket Audio Systems
• Dual 10" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

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List price $299.99
-20% $239.99

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• Works with both Factory and Aftermarket Audio Systems
• Dual 10" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

Sundown Audio M-10 D2 10" (M10D2)

4000W Peak (2000W RMS) 10" M Series Dual 2-ohm Car Subwoofer (SW-M10D2)

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4000W Peak (2000W RMS) 10" M Series Dual 2-ohm Car Subwoofer (SW-M10D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene cone
• High Roll Foam surround
• Mount depth: 10.09"
• Sensitivity: 79.14 dB

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List price $659.99
-17% $549.99

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Cerwin-Vega V65DV2

1500W Peak (500W RMS) 6.5" Vega Series Dual 2-ohm Subwoofer

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1500W Peak (500W RMS) 6.5" Vega Series Dual 2-ohm Subwoofer

• Peak Power: 1500 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 4.65"
• Sensitivity: 80 dB

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List price $155.99
-17% $129.99

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MTX SLH12X2

Empty Dual 12" Ported Sledgehammer Enclosure

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Empty Dual 12" Ported Sledgehammer Enclosure

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.66 cubic feet
• Mounting hardware included

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$199.95

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Tru Spec Single 8" (1445DF)

Empty Single 8" Vented Prefabricated Enclosure

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Empty Single 8" Vented Prefabricated Enclosure

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.65 cubic feet
• Compatible for Sundown SA8V2 and similar subwoofers (Sold separately)

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List price $219.99
-41% $129.99

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Massive Audio GTR84

800W Peak (600W RMS) 8" GTR Series Dual 4-ohm Subwoofer

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800W Peak (600W RMS) 8" GTR Series Dual 4-ohm Subwoofer

• Peak Power: 800 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Textured Non-Pressed Pulp with Resin Cone
• High Roll Foam Surround
• Mount depth:
• Sensitivity: 82.5 dB

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List price $179.95
-28% $129.99

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    FAQ Frequently asked questions in Car Subwoofers


    A car subwoofer is a specialized speaker designed to reproduce low-frequency bass sounds. It enhances the audio system by delivering deep and powerful bass that standard car speakers cannot produce. Subwoofers are essential for experiencing the full range of frequencies in music and enhancing the overall audio quality. They add depth and impact to the sound, creating a more immersive and enjoyable listening experience. Whether you enjoy rock, hip-hop, or electronic music, a car subwoofer ensures that you can feel the music as well as hear it, adding a whole new dimension to your car audio system.
    Choosing the right car subwoofer involves considering factors such as the size of your vehicle, available space, power handling capabilities, and personal audio preferences. The most common subwoofer sizes for cars are 8-inch, 10-inch, 12-inch, and 15-inch. Smaller subwoofers are suitable for compact cars with limited space, while larger ones provide more bass output for larger vehicles or enthusiasts seeking a more robust bass experience. Additionally, consider the subwoofer's power handling (RMS and peak power) and impedance to match it with your car amplifier. If you're unsure about which subwoofer to choose, consult with a car audio professional who can recommend the best option based on your vehicle and audio preferences.
    While some car audio enthusiasts may have the knowledge and experience to install a car subwoofer themselves, professional installation is generally recommended. Installing a subwoofer involves more than just connecting wires; it requires proper placement, enclosure design, and tuning to achieve optimal sound quality and performance. A professional installer has the expertise and tools to ensure that the subwoofer is installed correctly, reducing the risk of damage to the vehicle and audio equipment. Additionally, they can help integrate the subwoofer seamlessly into your car's interior and fine-tune the audio system for the best possible sound. Investing in professional installation guarantees that your car subwoofer performs at its best and provides a satisfying bass experience.
    A powered car subwoofer, also known as an active subwoofer, has a built-in amplifier, whereas a passive subwoofer requires an external amplifier to power it. The advantage of a powered subwoofer is its simplicity; it can be easily connected to the car's audio system without the need for a separate amplifier. This makes powered subwoofers a popular choice for those looking to add bass to their car audio system without extensive modifications. On the other hand, passive subwoofers offer more flexibility for audiophiles who want to customize their audio setup. They allow for the use of external amplifiers, giving users greater control over their audio system's performance. The choice between powered and passive subwoofers depends on your preferences and the level of customization you desire for your car audio setup.
    Yes, using multiple subwoofers in your car audio system is possible and can lead to improved bass performance. Multiple subwoofers can help distribute bass more evenly throughout the vehicle, reducing peaks and nulls in bass response. This can result in smoother and more consistent bass across different seating positions. Additionally, using multiple subwoofers can increase overall bass output, allowing for a more impactful and immersive listening experience. When using multiple subwoofers, it's essential to properly match them with the car's amplifier and consider enclosure designs that complement each subwoofer's characteristics. Integrating multiple subwoofers may require more complex installation and tuning, so consulting with a car audio professional is advisable to achieve the best results.

    All About

    Car Subwoofers

    If you're on the hunt for the best quality car subwoofers to elevate your audio experience, look no further. Explore our extensive collection now and discover the perfect subwoofer that will bring new life to your car's sound system.

    Car subwoofers are the heartbeat of any audio system, adding depth and power to your music that standard speakers alone cannot replicate. These specialized speakers are designed to handle low-frequency sounds, commonly referred to as bass. By reproducing these low notes accurately, car subwoofers enrich the audio experience, providing a full-bodied, immersive sound that you can feel.

    One of the key advantages of having car subwoofers is their ability to enhance the overall sound quality. By taking on the responsibility of reproducing bass frequencies, subwoofers relieve the main speakers of this task, allowing them to focus on delivering crisp and clear mid and high-range sounds. The result is a well-balanced and dynamic audio experience that can transform your daily commute into a concert-like journey.

    Beyond music, car subwoofers also enhance the enjoyment of movies, audiobooks, and podcasts. Whether you're a music enthusiast, a movie buff, or simply someone who appreciates high-quality audio, adding a subwoofer to your car's audio system will undoubtedly elevate your entertainment experience on the road.

    At Sonic Electronix, we take pride in offering a diverse range of top-tier car subwoofers from leading brands in the industry. Our team of audio experts is dedicated to assisting you in finding the best car subwoofer that aligns with your audio preferences and vehicle specifications. Whether you're seeking bone-rattling bass or a smooth, refined sound, we have the perfect options to meet your audio aspirations.

    For personalized guidance and expert assistance, don't hesitate to reach out to our knowledgeable staff at 1-502-200-8010. Our audio specialists are ready to help you create a custom car audio setup that perfectly complements your driving style and audio preferences.

    Sonic Electronix Learning Center: Differences in Subwoofer Sizes

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.