Last updated on February 15th, 2021 at 09:45 pm

The Best Shallow Mount Subwoofers are designed to reproduce bass, while remaining compact. They cover the lower end range of frequencies that smaller speakers struggle to reproduce (6.5″, 6″ x 9″, and etc). Sometimes, however, your subwoofer selection may be limited by the amount of space you have, which is why slim series subwoofers with a shallow depth were designed. If you have a truck, sports car, or just a car with little room; you can add level of power and sound to your music that can't be reproduced by your door speakers, while fitting it in an area that normal component subwoofers won't fit in. Add a well-tuned, best shallow mount shallow subwoofer to your stereo and you'll find yourself wondering why you didn't add one to your stereo earlier.

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Best Slim Car Subwoofers List

1. Best Overall Pick: Rockford Fosgate Power T1S2 Shallow Subwoofers

pioneer ts-a series shallow subwoofers front, back side view

Rockford Fosgate Power T1S2 Series Subwoofer Review

These shallow subs are far from cheap, but they are beautifully engineered. If you want to get high quality bass from a shallow enclosure you'll be hard-pressed to find any better speakers than these. The 10″ model needs a mounting depth of only 3″ yet handles 500 watts RMS.

Heat can be an issue with subs, especially those mounted in a sealed enclosure. Rockford have addressed this by using an aluminum diecast frame incorporating integrated heat sink fins. This sub is built around a single 2-ohm voice coil and dual Nomex progressive spiders. It is optimized for sealed enclosures and comes with a removable die cast aluminum trim ring.

  • Superior build quality for enhanced durability
  • Fantastic sound delivery
  • Powerful sound output
  • Eye-catching design
  • Price is on the high end

2. Best for Trucks & Under Seats: JL Audio TW3 Shallow Series Subwoofers

JL Audio TW3 Shallow Series Subwoofers front, side and angle view

JL Audio TW3 Shallow Series Subwoofer Review

You no longer have to sacrifice performance for a shallow sub with the JL Audio TW3 Shallow Series Subwoofers. This super-thin subwoofer is packed with innovative engineering and technology to give consumers the ultimate sound with minimal space. The TW3 Series Subwoofers use a combination of rugged polypropylene cones for flex-less movement, a rubber surrounding that provides long-lasting efficient movement, concentric tube technology and a cast aluminum basket that sits only 3 1/4″ tall to give give stereo listeners the best performing shallow subwoofer on the market.

  • High-quality performance technology
  • Stylish and durable construction
  • Space saver with deep sound
  • Substantial power handling
  • Available in 2 different size options
  • Price isn't too friendly on this one either

3. Low Cost: Pioneer TS-A Shallow Series Subwoofers

pioneer ts-a series shallow subwoofers front, back side view

Pioneer TS-SW Shallow Series Subwoofer Review

Pioneer's TS-A Shallow Series Subwoofers were originally released in 2019 and are packed with innovative, patent-pending features that help this woofer deliver powerful bass while maintaining a slim enough profile to fit into a broad range of vehicles. An oversized cone surface to increase the surface area of the woofer without increasing the overall size, giving the subwoofer a deeper and louder sound while a reinforced cone structure prevents any sort of failure under heavy load and gives the sub a stiff and responsive reproduction of your music. All stuffed nicely into a compact frame that sits at 3 3/8″ tall.

  • Three different size options to choose from
  • Quite affordable
  • Deep bass and great sound delivery for the price
  • Low power handling compared to other subwoofers on the list

4. Best Design: MTX FPR Shallow Series Subwoofers

MTX 35 Series Shallow Subwoofers front, side and angle views

MTX 35 Series Shallow Subwoofer Review

Designed to be pushed to the limit with your heaviest, bassy-est songs, the MTX 35 Series Shallow Subwoofers were engineered to perform well in the toughest, smallest of environments. The 35 Series feature a rigid polypropylene cone, surrounded by nitrile-butyl rubber surround that offers long-lasting durability without cracking or delaminating. They have what MTX calls an Inverted Apex Surround, which is basically a folding rubber surround design that takes up less space between the frame of the subwoofer and the cone. This allows for an increased surface area and increased volume displacement (more bass!). You can read more about this feature on MTX's website.

Combined these features with MTX’s unique Spider Plateau Venting design that keeps your subwoofer cool while pumping intense jam sessions and you have a high quality, high performing shallow subwoofer that'll last. Note that this subwoofer does require a sealed enclosure.

  • Two different options to choose from
  • Great audio quality
  • Really shallow mounting depth (less than 3.5″)
  • Well-rounded bass without distortions
  • Neat Inverted Apex Surround design that allows for a larger cone and more displacement than some competitors
  • Lower sensitivity than other subwoofers
  • The subwoofer is designed for sealed enclosures only (no ported enclosures)

5. Best Volume: Alpine Type-R Shallow Series Subwoofers

Alpine Type-R Shallow Series Subwoofers side, angle and front view

Alpine Type-R Shallow Series Subwoofer Review

Whether you’re looking for a subwoofer for recreational purposes, or a competitive level sub that will dominate, the Alpine Type-R Series Subwoofers were designed for high power and high volume bass while keeping a low profile. They're another great alternative to a traditional component subwoofer, yet fit in all of the un traditional, tight areas. Featuring an aluminum cone with Santoprene rubber surround, a cast aluminum frame with radial finned heat sink, and a patent pending ‘Pass-Through Gap Geometry', the SWR Thin Series Subwoofers produce massive output while maintaining a ultra thin and efficient frame.

  • Good, consistent bass delivery regardless of how hard and long you're pushing it
  • Two size options to choose from
  • Great subwoofer technology with modern features
  • Quality construction and high-level performance output
  • Price is high

6. Best All-Weather: Kicker CompRT Series Shallow Subwoofers

Kicker CompRT Best Slim Subwoofers front, side and back view

Kicker CompRT Shallow Series Subwoofer Review

Kicker is a well-known brand in car audio. Their shallow mount subwoofers let you get quality bass sound from a small space. (The RT designation signifies shallow mount design.) Just how shallow are they? Well these are available in sizes ranging from 6.75 up to 12″. The 10″ CompRT, (a popular size,) has a mounting depth of 3.4375″ (3 7/16″). They are sold as “all-weather” so could conceivably use this on a bike or ATV.
Subwoofers do draw a lot of power, so the RT's incorporate terminals that will accept heavy gauge speaker wire. (These are passive speakers.) Check the spec for powered outputs of the size you're interested in, but for reference the 10″ RT's are rated at 400 W RMS. Also note that they are available in both 1 and 2 ohm impedances.

This sub features dual voice coils, a progressive-roll spider and Kicker's proprietary heat management system. You'll also notice their signature red cone stitching on the outside. It doesn't come with any enclosure so you'll need to provide one. Kicker provide plenty of detail on minimum sizes for both vented and non-vented enclosures.

  • Good, consistent bass delivery
  • Two size options to choose from
  • Great subwoofer technology with modern features
  • Quality construction and high-level performance output
  • Less punchier bass than others on our list

7. Best Value: Rockford Fosgate Punch P3 Shallow Series Subwoofers

Rockford Fosgate Punch P3 Shallow Series Subwoofers front, side and angle views

Rockford Fosgate Punch P3 Shallow Series Subwoofer Review

Rockford Fosgate’s P3S Shallow Series Subwoofers were designed to match the performance of their component P3 woofers, a large undertaking considering a depth of only 3 9/16″. Rockford uses a thin anodized aluminum cone and dust cap that is light enough give the woofer an efficient response, yet rigid enough to maintain its shape during high powered, heavy bass. Combined these features with their M-Roll Santoprene™ surround, and you get a long lasting, high output subwoofer that sounds and feels like a standard component subwoofer.

  • 3 different size options available
  • Stylish design and compact construction
  • Price is on the lower end
  • Relatively low power handling
  • Certain components are not as durable as others and can break down earlier

8. Best Technology: JL Audio TW5v2 Series Shallow Subwoofers

JL Audio TW5v2 Series Slim Subwoofers side, front and rear views

JL Audio TW5v2 Slim Series Subwoofer Review

The TW5v2 slim subwoofer series is designed to give you the ultimate bass sound experience from the shallowest mounting depths. One of the biggest challenges of adding a subwoofer to a car stereo system is finding the perfect place to put them without sacrificing passenger or cargo space. JL audio specifically designed these super-thin subwoofers for music enthusiasts who would love immense bass but have limited spaces for installation.

The TW5v2 shallow mount subwoofers are created with impressive engineering which makes it possible for the manufacturer to compress their motor structure into a small compartment without losing the excursion required to provide massive bass. The technology allows for the subwoofers large motor structure to be placed further forward in the speaker than with traditional designs.

Combined with an impeccable amp, these subwoofers will make your friends and colleagues envious of your car’s music system.

  • Require extremely shallow mounting depth (Less than 3 inches)
  • Powerful, deep, and accurate bass delivery
  • Great performance and clear sound
  • Quality construction for better durability
  • Can handle power up to 600 watts
  • Good looking speakers
  • Only offered in a 13.5″ size at the moment
  • Price isn’t too friendly

Choosing the Right Subwoofer

When choosing the best shallow subwoofer that will fit your needs, you have to ask yourself, “What kind of bass am I looking for?” Sometimes the best shallow subwoofer isn’t the biggest. Different sizes of shallow subwoofers respond and produce different sound to different music and finding the right match for your music preferences is key. Let’s talk about the different sizes of subwoofers and what kind of sound they emit.

8″ Subwoofers – The smaller the woofer the faster, more responsive and punchier it is. An 8″ woofer can keep up with faster paced music like heavy rock, double bass and fast paced electronic. It’s a great choice for those who enjoy soft and light bass. An 8″ subwoofer is one that compliments a system rather than overwhelms.

10″ Subwoofers – 10’s are very common. They are the most well-rounded and safest choice for a subwoofer on the market. The 10″ can keep up with fast paced music while creating a respectable amount of bass. They are good for fast paced music, and also good with heavier bass music such as rap and club music. But if you’re looking for big bass, you may have to double up with the 10″ to achieve what you are looking for. Click Here To View Our 10″ Subwoofers.

12″ Subwoofers – If you listen to a big variety of music but enjoy heavy bass then a 12″ subwoofer is for you. The 12″ sub is the most common in the marketplace today, mainly because they are so universal to any music that is listened to, produce a heavy bass and cover a deeper range of frequencies. It won’t keep up with fast paced music such as heavy rock or metal as well as the 10″, it will sound great for all varieties of music, especially rap, electronic, club and pop.

15″ Subwoofers – If you are looking for ear bleeding bass then you are in the right category.

So to sum up, when choosing the best shallow subwoofer to fit your application you need to take into consideration the level of music you want to listen to, the type of music, as well as the confinements of the location. 8″ subwoofers are great for leveling out a sound system while a 15″ will wake the neighbors. Your safest bet is the 10″ or 12″ subwoofer.

All of the top rated shallow subwoofers require an amplifier. Check out all of the Best Reviewed Amplifiers, and more information on how to choose an amplifier to meet the specs of your Best Thin Subwoofer.