5 Best 15-Inch Car Subwoofers: The Biggest and Powerful Bass

Best 15-inches Car Subwoofers

When space is not a concern, it is always better to choose a car subwoofer that is bigger. 15-inch car subwoofers have the biggest cone dimensions and they move a lot of air inside the woofer, allowing them to produce a very powerful bass.

So much so, if you want the loudest and deepest bass, then this is the car woofer size to choose.  But, how do you choose the best 15-inch car subwoofer?

We researched and handpicked some of the best models for the money below.

Product Name

Power Handling




Current Price

1. Planet Audio AC15D 15-Inch Voice Coil Car Subwoofer

2100 W

4 Ohms

89.0 dB


2. Kicker S15L7 15-Inch Car Audio Subwoofer

2100 W

4 Ohms

88.6 dB


3. Skar Audio EVL15 D4 15-Inch Car Subwoofer

2500 W

2 Ohms

86.2 dB


4. Hifonics BRZ15D4 15-Inch Brutus Dual Subwoofer

1200 W

4 Ohms

86.0 dB


5. Rockford Fosgate P3D415 15-Inch Car Subwoofer

1200 W

4 Ohms

86.0 dB


Editor's Rating: 4.2 out of 5 stars (4.2 / 5)

Planet Audio AC15D Voice Coil Car Subwoofer
  • Power Handling: 2100 Watts
  • Impedance: 4 Ohms
  • Sensitivity: 89 dB
  • Resonant Frequency: 25 Hz

The Planet Audio AC15D is the most affordable 15-inch car subwoofer solution in this review. Despite the low price, it still sports some interesting features.

The cone is made from polypropylene, a high resistance material that will not rip or puncture when the woofer is at very high volumes.

Additionally, the voice coil is a decent 2inches in size and made from aluminum. This voice coil will dissipate heat faster and produce a clear midrange.

One of the best features of the Planet Audio AC15D is definitely its very low resonant frequency of 25 Hz.

Since its resonant frequency is one of the lowest in this review, this car subwoofer can produce very clear low frequencies without distorting.

Additionally, it has a high sensitivity of 89 dB. This shows that it requires less power than other models to produce the same sound loudness. Very neat!

Excellent for those listening to music like electronics and R&B that usually have a lot of low range bass.


  • Very affordable price
  • A low resonant frequency of 25 Hz. Does not distort low frequencies
  • Good quality build construction
  • A high sensitivity of 89 dB. Efficient woofer


  • Needs an enclosure

Editor's Rating: 4.3 out of 5 stars (4.3 / 5)

Kicker S15L7 4-ohm 15" Car Audio Subwoofer
  • Power Handling: 2100 Watts
  • Impedance: 4 Ohms
  • Sensitivity: 88.6 dB
  • Resonant Frequency: 26.3 dB

The Kicker S15L7 is one of our favorite 15-inch car subwoofers. It is the highest quality woofer we can recommend, and best model in this review. Despite costing a little bit more than the competition, we have no problem recommending it.

At the heart of the Kicker S15L7 lies a cone made from titanium deposit. This is a very resistant and tough cone that can vibrate without fracturing. It definitely makes it more durable, especially if used for a long time.

Even the cone surround is made from a Santoprene rubber material, that is highly elastic and has an excellent frequency response.

Moreover, there is a dual voice coil in this woofer that produces a clear midrange. But that is not all, there are many technologies like Spiralead and Uniplate that ensure that this woofer always outputs the highest quality sound at any given time, regardless of volume.

All in all, if you need the best of the best when it comes to 15-inch car subwoofers, there is nothing on the market that can beat the Kicker S15L7. It is more expensive than other woofers, but it is so much worth the price tag.


  • Best construction quality we have seen
  • Many technologies ensure it sounds great
  • Dual voice coils for mid range clarity
  • Very tough and durable cone


  • Expensive

Editor's Rating: 4.4 out of 5 stars (4.4 / 5)

Skar Audio EVL15 D4 15-Inch Car Subwoofer
  • Power Handling: 2500 Watts
  • Impedance: 2 Ohms
  • Sensitivity: 86.2 dB
  • Resonant Frequency: 35 Hz

While the Skar Audio EVL15 may look like your average 15-inch woofer, it has a lot of good things going for it.

For one, it is the most powerful woofer in the review with a peak power of 2500 Watts. This shows that it can play very loud when paired with a matching amplifier.

Furthermore, this model has a dual impedance of 2 Ohms and 4 Ohms. Therefore, it is more versatile during installation as both normal size audio wires and thin wires can be used.

But what really demarks the Skar Audio EVL15 from the competition is definitely its big 3-inch CCAW voice coil.

The voice coil is made from a 4 layer aluminum material that adds durability and fast heat dissipation to the coil. So, it can play louder for a longer period without overheating and has no midrange clarity issues.


  • Powerful and deep bass
  • Big 3-inch voice coil
  • Impedance is both 4 Ohms and 2 Ohms for installation versatility
  • Good sensitivity. Efficient woofer


  • Its price. It is expensive

Editor's Rating: 4 out of 5 stars (4 / 5)

Hifonics BRZ15D4 15-Inch Brutus Dual Subwoofer
  • Power Handling: 1200 Watts
  • Impedance: 4 Ohms
  • Sensitivity: 86 dB
  • Resonant Frequency: N/A

The Hifonics BRZ15D4 is the best of both worlds. It is not very expensive, and yet still manages to pack very interesting features inside a durable and longlasting woofer.

Despite the relatively low price, it has an excellent build construction. The cone is built from a resistant polypropylene and the voice coil produce an excellent mid range.

This woofer has a spacing technology called spider spacing. What this does is promote frequency response and limit vibrations, that eventually may cause music distortions.

The bass in this woofer is powerful and deep. It does not sound boomy, but rather punchy just as you would expect from a quality 15-inch woofer.

Moreover, the base plate is equally coated with a nickel metal for even better heat dispersing. All in all, there is a lot of value in the Hifonics BRZ15D4. It has an affordable price and yet will exceed the expectation of most users.


  • Affordable. Value for money
  • Good build quality
  • Excellent heat dissipation
  • Versatile. Can be installed in both sealed or ported enclosures


  • May require amplifier finetuning to get a good sound

Editor's Rating: 4.3 out of 5 stars (4.3 / 5)

Rockford Fosgate P3D415 15-Inch Subwoofer
  • Power Handling: 1200 Watts
  • Impedance: 4 Ohms
  • Sensitivity: 86 dB
  • Resonant Frequency: 22.4 Hz

By now, we all know that Rockford Fosgate makes one of the best car woofers in the industry. The Rockford Fosgate P3D415 is no different.

Despite being fairly expensive, and a peak power rating of only 1200 Watts, this woofer can produce a punchy and deep bass that can rival more expensive models like the Kicker S15L7.

To produce such a good bass, Rockford made the cone out of an anodized aluminum material that offers excellent frequency responses and durability. Very helpful for those who plan to play this woofer at very high volumes.

Moreover, the 2.5-inch voice coils are made from a copper clad aluminum that dissipates heat faster and produces a clearer midrange.

But, what sets the Rockford Fosgate P3D4 apart is definitely its very low resonant frequency of 22.4 Hz. This shows that this woofer can go very low in frequency without distorting, allowing it to produce a clean bass with no distortions when listening to bass-intensive music at high volumes.

All in all, we have no problem recommending the Rockford Fosgate P3D4. It offers excellent value and great performance for the money.


  • Excellent build construction
  • A very low resonant frequency of 22.4 Hz
  • Aluminum voice coil for better heat dissipation
  • Anodized aluminum cone for durability and better frequency responses
  • Optional grille mounts


  • The price
  • Lower power handling when compared to other models in the same price range

How to Buy a 15-Inch Car Subwoofer

How to Buy a 15-Inch Car Subwoofer


The impedance of a car subwoofer will tell you what size of audio wires you can use during the installation. A woofer with a smaller impedance like 2 Ohms will accept very thin wires that will make the installation more professional and clean.

Additionally, some woofers are dual impedance, which means that they can accept both 4 Ohms and 2 Ohms impedance wires for more versatility.


This is a value measured in decibels (dB). The higher the sensitivity of the 15-inch woofer, the less power is required to power it.

It is a useful value to keep an eye out because 15-inch speakers are big and consume a lot of power to produce sound. The higher the sensitivity, the less power it will need from an amplifier, thus it will be more energy efficient.

Especially helpful if your chosen 15-inch car subwoofer is pre-amped as those are usually smaller and produce less power than a dedicated amplifier.


Since 15-inch speakers are big, they consume a lot of space. Especially that the enclosures can reach big sizes.

Ensure that the dimensions fit in your car boot and it is not too cramped as it may cause unnecessary vibrations and distortions.


The cone in a woofer is what displaces air to produce a sound. Due to the violent movements that happen to the cone, it needs to be built from a solid and vibration resistant material.

The cone material is especially important if you plan to play your subwoofer loud for an extended period.

Polypropylene is a common cone material that offers great resistance and excellent frequency responses. 

You can also keep an eye out for cones made of a multilayer mica material as they offer added resistance and durability.

Voice Coil

In a car subwoofer, the voice coil is responsible for producing midrange sounds like voices.

The larger the size of the voice coil, the clearer will be the sound. Most 15-inch car subwoofers have a voice coil of at least 2.5-inch in size.

Additionally, choose woofer models that come with a dual voice coil (DVC) for more midrange clarity.


As we’ve seen, despite their big size, 15-inch car woofers are champions at creating low frequencies like bass.

They also consume a little more power than smaller woofers, so ensure that you have a matching amplifier to power it. Additionally, measure your car boot to make sure that it fits properly. You do not want any surprises!

In case you have still not found the best 15-inch car subwoofer for your need, go through our list one more time. If you already have, then enjoy your new car sound system!