Best Free Air Subwoofers Review

Driving in the traffic on your way to work or going back home after a tiring day can be stressful. However, with the little help of a subwoofer to provide you with a musical jam, this might relieve you and embrace your distress away. If you’re one who constantly listens to music while driving, having a reliable subwoofer can make your drives enjoyable too.

You see, no matter what your reasons are for searching for a subwoofer, there’s only one thing in common that we all want to have – we want a quality subwoofer that’s reasonable in price and has features that are great.

However, what if your car’s built-in speakers or subwoofers don’t give off the best sound quality that you are looking for? Obviously, you’ll go looking for a new one that’s high in quality, but how do you do this and where are you going to find these? If you don’t have any knowledge of subwoofers, surely, finding the perfect one for you might be hard.

For that reason, you need more reliable advice about the Best free air subwoofers that you can choose from to achieve that upbeat driving experience! But with all the choices out there, it can be mind boggling! To help you make a choice, we’ve roundup some of the Best free air subwoofers out there! 

Best Free Air Subwoofers Reviews

Kicker 43CWR84 CompR 8 Inch 4 Ohm...
Kicker CompRT Single 6.75 Inch 300...
STARTER
Rockford Fosgate R2D2-10 Prime R2...
BEST CHOICE
Rockford Fosgate P3SD2-8 8" Dual...
Rockford Fosgate R2SD4-10 10" 400W...
Kicker 43CWR84 CompR 8 Inch 4 Ohm...
Kicker CompRT Single 6.75 Inch 300...
Rockford Fosgate R2D2-10 Prime R2...
Rockford Fosgate P3SD2-8 8" Dual...
Rockford Fosgate R2SD4-10 10" 400W...
Size: 8 inches
Size: 5.9 inches
Size: 10 inches
Size: 8 inches
Size: 10 inches
Power Handling: RMS @ 300 W and Peak @ 600 W
Power Handling: RMS @ 150 W and Peak @ 300 W
Power Handling: RMS @ 250 W and Peak @ 500 W
Power Handling: RMS @ 150 W and Peak @ 300 W
Power Handling: RMS @ 200 W and Peak @ 400 W
Impedance: Dual 4 ohms
Impedance: Dual 2 ohms
Impedance: Dual 2 ohms
Impedance: Dual 2 ohms
Impedance: Dual 4 ohms
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Kicker 43CWR84 CompR 8 Inch 4 Ohm...
Kicker 43CWR84 CompR 8 Inch 4 Ohm...
Size: 8 inches
Power Handling: RMS @ 300 W and Peak @ 600 W
Impedance: Dual 4 ohms
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Kicker CompRT Single 6.75 Inch 300...
Kicker CompRT Single 6.75 Inch 300...
Size: 5.9 inches
Power Handling: RMS @ 150 W and Peak @ 300 W
Impedance: Dual 2 ohms
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STARTER
Rockford Fosgate R2D2-10 Prime R2...
Rockford Fosgate R2D2-10 Prime R2...
Size: 10 inches
Power Handling: RMS @ 250 W and Peak @ 500 W
Impedance: Dual 2 ohms
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BEST CHOICE
Rockford Fosgate P3SD2-8 8" Dual...
Rockford Fosgate P3SD2-8 8" Dual...
Size: 8 inches
Power Handling: RMS @ 150 W and Peak @ 300 W
Impedance: Dual 2 ohms
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Rockford Fosgate R2SD4-10 10" 400W...
Rockford Fosgate R2SD4-10 10" 400W...
Size: 10 inches
Power Handling: RMS @ 200 W and Peak @ 400 W
Impedance: Dual 4 ohms
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Kicker is one of the best car subwoofer brands out there. They've been around for quite a long time. And they've mastered the art of providing a quality product for a reasonable price.

Kicker subwoofers are some of the best selling subs on the market. They seem to be well-liked.

They're very well engineered and most importantly, they're very affordable.

The 10C104 is one of the best free air subwoofers that Kicker has to offer. It's 10-Inch in size, and it can handle a decent amount of power on continuous basis.

The Kicker Comp 10C104 is rated for a sensitivity rating of 86 dB. It can handle up to 150 watts RMS.

It's suitable for both sealed and ported enclosures, as well as free-air use.

Kicker Comp 10C104

The Kicker 10C104 features a flex-resistant polypropylene cone with 360-degree back bracing for hard-hitting lows without distortion. Its ribbed foam surround offers long excursion and keeps the cone on target, while the double stitching ensures reliable performance under heavy bass load.

Our only complaint about this subwoofer is its relatively weak sensitivity rating of 86 dB. Sensitivity goes hand-in-hand with power to achieve high sound output. Simply put, the higher the sensitivity, the less power required to produce the same amount of sound as a model with a lower sensitivity rating.

For example a subwoofer with a sensitivity rating that’s 3 dB higher than another sub only requires half as much power to deliver the same amount of sound.

Kicker 10C104 Specifications

  • Subwoofer size : 10"
  • Power Handling
    • RMS  : 150 watts
    • Peak   : 300 watts
  • Frequency Response  : 30-500 Hz
  • Nominal Impedance : 4 ohm
  • Top-mount depth     :  5"
  • Sensitivity : 86.2 dB

PROS

  • Good for sealed and ported enclosures
  • Ideal for a free-air function
  • This is totally affordable

CONS

  • Has weak sensitivity which requires more power to produce stronger sounds

​​The Pioneer TS-SW2002D2 is another great free air subwoofer. This 8 inch shallow-mount sub with a mounting depth of just 2-5/8" is designed to bring great bass to vehicles where traditional subs won't usually fit.

The TS-SW2002D2 features an oversized cone made of MICA injection-molded resin that moves more air and delivers accurate louder bass.

 It's rated for 150 watts RMS and has a sensitivity rating of 86 dB.We've come across many guys who have used the TS-SW2002D2 subwoofer as a direct fit replacement for their OEM subwoofer, and it works like magic.

Pioneer TS-SW2002D2

This subwoofer will also work quite well in free-air applications as well as in sealed and ported enclosures.

Pioneer TS-SW2002D2 Specifications

  • Subwoofer size       : 8"
  • Power Handling 
    • RMS  : 150 watts
    • Peak  : 600 watts
  • Frequency Response   : 20-200 Hz
  • Mounting depth : 2-5/8"
  • Impedance : dual 2 ohms
  • Sensitivity : 86 dB

PROS

  • Quite affordable
  • Can manage to accurately produce lower pitch sounds
  • Works great in sealed and ported enclosure

CONS

  • Weaker sensitivity

The Kicker CompR 43CWR84 free air subwoofer product is stacked with a dual magnet and offers strong bass output which will bring up your musical jam.

 With a great response to the thumping beat that you are looking for, you would totally love this subwoofer with its performance.The double red stitching makes sure that the product will last longer compared to any other subwoofer available in the market.

Kicker CompR 43CWR84

Its polypropylene system is manufactured with a 360-degrees musical output to provide precise and satisfying audio output, allowing to have that nice, crisp music quality.

Features:

  • Size: 8 inches
  • Weight: 7.19 lbs
  • Power Handling: RMS @ 300 W and Peak @ 600 W
  • Mounting Depth: 7 inches
  • Impedance: Dual 4 ohms
  • Sensitivity: 82.1 dB
Sale
Kicker 43CWR84 CompR 8 Inch 4 Ohm...
  • POWERFUL SOUND: Feel your music with the thump and thrum of sound through this 8-inch subwoofer
  • RELIABLE DESIGN: 4-Ohm dual voice coil for sound and wiring flexibility, stacked magnet structure for power handling and control, and 1-piece UniPlate back plate and pole piece for excellent thermal management
  • POWER RATING: Rated at 300 watts RMS power and 600 watts peak power
  • RECOMMENDED SETUP: Works best with sealed or ported sub enclosure and minim 400 watts of recommended power
  • INSTALLATION REQUIREMENTS: Installation requires 4.13-inch mounting depth and 7-inch mounting diameter in sealed sub boxes between 0.4 and 1 cubic feet or vented sub boxes between 0.8 and 1.2 cubic feet

PROS

  • It can provide accurate sound output for bass.
  • The product is durable, so it will be usable for a long time.
  • Works great with a ported or sealed enclosure.

CONS

  • A bit expensive

If you are planning to install a free air subwoofer on your vehicle’s rear dashboard, your bike’s bags, on your all-terrain vehicle’s seats without having to sacrifice your storage space and comfortable experience, this product is appropriate for you.

Aside from that, it is weatherproof which makes it such an enduring musical jam companion. 

Kicker CompRT Dual Component Subwoofer 43CWRT672

This subwoofer is made of high-quality components for excellent performance which is made possible through its unique temperature regulating system as well as the red stitching trademark that provides a deeper bass output.This is manufactured to handle sound power and produce incredible beats.

Features:

  • Size: 5.9 inches
  • Weight: 4.23 lbs
  • Power Handling: RMS @ 150 W and Peak @ 300 W
  • Impedance: Dual 2 ohms
  • Sensitivity: 82.6 dB
Sale
Kicker CompRT Single 6.75 Inch 300...
  • CompRT 6.75 inch, shallow mount subwoofer
  • Features 300 watts of max power and 150 watts of RMS power handling
  • Rubber surround and weatherproof for outdoor use
  • Injection molded polypropylene cone
  • High temperature voice coils for increased power handling

PROS

  • Can withstand weather conditions without malfunctioning 
  • Can produce precise sound output for bass
  • The subwoofer is durable, so it will be usable for a long time 
  • Being weatherproof, you’d never fear when it experiences rain and shine

CONS

  • A bit expensive
  • The brand name and the black paint might easily fade over time

If you are fond of installing free air subwoofers on your car or vehicle, this type of product can be the right selection for you.

It features an excellent quality sound output as well as a spider venting design that prevents your subwoofer from overheating.

Rockford Fosgate Subwoofer R2D2-10

 It’s yet another heat management system that can be found in most expensive subwoofer models, making it a choice that you can rely on. And because it’s small in size, this handy subwoofer can easily be installed or moved inside the car

Features: 

  • Size: 10 inches 
  • Weight: 8.77 lbs 
  • Power Handling: RMS @ 250 W and Peak @ 500 W 
  • Mounting Depth: 4.33 inches 
  • Impedance: Dual 2 ohms 
  • Sensitivity: 89 dB 

Sale
Rockford Fosgate R2D2-10 Prime R2...
  • Features 2 Inch Copper Clad Aluminum Voice Coil
  • Stamp Cast Frame Structure
  • Integrated PVC Trim Ring
  • Mica Injected Polypropylene Cone
  • 250 Watts RMS 500 Watts Peak Power Rating

PROS

  • Can withstand sound power to prevent damage to the coils 
  • Multi-pointed lead wire attachment method improves the performance and makes it last longer 
  • Cheap and available in the market 
  • Comes with a temperature regulation system
  • Great for vented and sealed enclosures 

CONS

  • A bit heavy compared to other products 

This is another free air subwoofer that is worth buying due to its great thump force when the rhythmic beat of your musical jam comes in.

It is built to provide a strong bass output in an enclosed space.

Rockford Fosgate Subwoofer P3SD2-8

It also uniquely designed with a spider vent system to prevent your subwoofer’s motor from heating, making it safer and longer-lasting compared to other subwoofers that easily heats upThis product can be the best fit as a sound producer for your car. 

Features: 

  • Size: 8 inches 
  • Weight: 8.8 lbs 
  • Power Handling: RMS @ 150 W and Peak @ 300 W 
  • Mounting Depth: 2.5 inches 
  • Impedance: Dual 2 ohms 
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Rockford Fosgate P3SD2-8 8" Dual...
  • The Rockford Fosgate P3S series shallow mount subwoofers deliver Punch, designed to deliver big bass in a tight space, with its low profile mounting depth design
  • The Punch P3SD2-8 is a slim 8” 2-Ohm DVC (dual voice coil) subwoofer with 150 Watts RMS / 300 Watts Max power handling and custom 10-AWG nickel plated push terminals
  • Featuring anodized aluminum cones and dustcaps, with a unique spider venting design to keep the motor cooler and a new hybrid stamp-cast basket providing super strength while minimizing weight and resonance
  • Optimized for both sealed and vented enclosures {Sealed (Vb): 0.25 cu. ft. (7.0 Liters) / Vented (Vb): 0.75 cu. ft. (21.2 Liters) / Mounting Depth: 2.66 in. (67.5 mm) / Cutout Diameter: 7.13 in. (181.0 mm)}
  • Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller

PROS

  • Can easily withstand great bass power to prevent damage to the subwoofer 
  • Comes with a lead wire attachment method improves the performance and makes it last longer 
  • Built with reliable temperature regulation system to avoid motor heating 
  • Can perform greatly for vented and sealed enclosures 

CONS

  • A bit heavy 
  • A bit expensive than others 

When you have limited space for a subwoofer that gives off a strong sound of the bass, this product is the best choice for you.

It is designed with a unique heat regulation system, also known as spider venting, which is mostly used in a lot of expensive subwoofer models.

Rockford Fosgate Subwoofer R2SD4-10

If you want to listen to music all day while driving, this can deliver a clean and precise bass output that will satisfy your musical jam needs in the car. 

Features: 

  • Size: 10 inches 
  • Weight: 9.5 lbs 
  • Power Handling: RMS @ 200 W and Peak @ 400 W 
  • Mounting Depth: 3.4 inches 
  • Impedance: Dual 4 ohms 

PROS

  • Can handle great bass output to prevent damage to the subwoofer’s coils
  • Can be attached with a tinsel attachment method in order to improve the performance and make it last longer 
  • Built with a reliable heat management system to avoid motor heating
  • Can perform greatly for vented and sealed enclosures 
  • Fairly affordable 

CONS

  • Heavier than most subwoofers on the market 

One of the major complaints about adding a subwoofer or a couple of subs to your car audio system is that they take up a lot of space.

When you put a large, giant square box in the boot, you find that lots of nooks and crannies that were previously available are now impossible to get at.

To add insult to injury, subwoofer boxes made with thick MDF panels - which is the preferred material for subwoofer enclosures - are quite heavy.

A dual subwoofer enclosure designed to house in two 12" inch subwoofers for example can weight up to 30-60 lbs - weight whose fare you pay for at the gas station every time you fill the tank up.

So, what is the best way to add a subwoofer to your car audio system without losing most of the available cargo space? Well, there are a few great solutions available such as using powered subwoofers or under seat subwoofers.

A free air subwoofer is another simple, space-saving mounting form in which the subwoofers use the trunk space as their enclosure.

Free air subwoofer is a great solution for those who want to add punch and presence to their music without sacrificing the entire cargo area on their cars.

What Is a Free Air Subwoofer?

A free - air subwoofer is the simplest subwoofer mounting form, yet it requires specifically designed subwoofers. Free air subwoofers don't require a mounting box in order to work efficiently.

In a free-air setup, subwoofers are usually mounted either in the rear deck or attached to a board placed between the backseats of a car and the trunk.

This board makes an airtight seal and turns the entire trunk into an enclosure - this is also known as infinite baffle (IB) design (more on that later).

It should be noted, however, that using a free-air subwoofer may compromise sound quality, at least to some extent.

A free-air subwoofer won't sound by any means as good as a subwoofer mounted in a carefully-designed enclosure.

Additionally, anything that you place in the trunk may prevent the sub(s) to sound as good as it meant to, which may be an inconvenience to the general use of one’s vehicle.

One thing to keep in mind is that when you're mounting a sub or a couple of subs in your rear deck or behind the backseats.

It's highly recommended to use some deadening material like Dynamat or Hushmat in the trunk so you can get better sound performance.

Free-Air VS. infinite baffle

We frequently get asked about the difference between free-air and infinite baffle. Well, they're relatively the same thing.

However, technically, in infinite baffle setup, the front and rear waves are completely isolated so that they don't interfere with each other, while In a free-air setup, front and rear waves have some interaction.

Some people use both terms interchangeably, and there's nothing wrong with that.

Final Thoughts 

There are a lot of free air subwoofer products available out there, though only a few of them can be considered the best. The subwoofers mentioned above are definitely deemed as some of the best. Bear in mind that these products we’ve featured have the most positive reviews from the customers who have experienced using these products. So, you can surely give any of the ones mentioned above a try.  

However, before deciding to buy one, just be sure that you have the available dimensions of space available where you would want to install your subwoofer in order to avoid regrets in buying the wrong product. The compatibility of your car and the subwoofer is essential so that you can make the most out of your purchase.   

Now that you’re all set, you can now begin choosing from the list above. We hope that this article helped you in your subwoofer-seeking quest so that you would be able to improve and enhance your driving experience from a dull one to a joyful road trip! Have fun with the new sub! 

Last update on 2020-05-30 at 11:39 / Affiliate links / Images from Amazon Product Advertising API