10 Best Under Seat Subwoofers for Your Car (Reviews of 2019)

We all want an amazing sound system in our car, but sometimes, due to limitations of space, we can’t install the gear we want. If you have a smaller vehicle but still want powerful bass, the best option might be a sub under your seat – so here are our picks for the best under seat subwoofer.

The Best Under Seat Subwoofer of 2019

1. Rockville USS8 Under-Seat Car/Truck Subwoofer Sub

This is a really impressive under seat subwoofer with loads of awesome features from Rockville. It has an 8” speaker and the unit is only 2” height, making it easy to fit under your seat. It also features a built-in amp, making it cleaner and easier to install than many other similar subs.

The amp part includes special auto-on technology to let it know it needs to turn itself on when you turn the stereo on. It also comes with heavy-duty mounting feet to keep it securely in place.

It has a PWM MOSFET power supply and offers a peak of 600 watts of power or RMS 150 watts. To make sure nothing can go wrong, it also incorporates a thermal protection circuit and a short protection circuit.

Other specs include a low pass filter at 50-150Hz, bass boost of 0-12dB at 45Hz and a subsonic filter at 20-50Hz. It is controlled by a remote bass knob which can be installed somewhere easily accessible, meaning you don’t need to reach under your seat while driving.

Overall, a powerful and extremely well-designed sub that will give you great performance – and high levels of thundering bass. A great option if you want to add an under seat sub to your car.

2. Rockville SS8P Under-Seat Active Powered Car/Truck Subwoofer Sub

This under seat sub from Rockville is very similar to the one above. It has pretty much all the same great features except this is just a slightly less powerful version. This model gives peak power of 400 watts and RMS power of 100 watts.

This sub also has a built-in amp, making it easy to wire up and install, and it features a low-level RCS input as well as high-level inputs. There is an auto-on function, so you don’t need to turn it on manually – you just turn on your stereo and the amp comes on by itself.

It’s a small unit too – at only 2.8”, it’s easy to fit under most car seats. The built-in amp will also help you save space.

There’s lots of tech in there to keep it safe too. It has a thermal protection circuit, a short protection circuit and an overload protection circuit – which all serve to keep it from being damaged, even if something goes wrong.

It includes a low pass filter at 50-150Hz, a bass boost from 0 to 12dB at 45Hz and a subsonic filter at 20Hz, ensuring high-quality and customizable sound.

All in all, this is a great under seat sub with built-in amp – it is well designed with plenty of useful features, but above all, it sounds awesome. If you didn’t know, you would probably think it was a lot bigger than it actually is. A good option if you want to give your car’s bass a boost.

3. Rockville RW10CA 800-Watt Car Subwoofer Sub (Our Top Recommended)

This sub is not a dedicated under seat model and could equally be installed in other positions – but its size and shape would make it an excellent option to place under a seat – or anywhere else.

This is another subwoofer from Rockville, and of the three we’ve included, this is the top model. It can put out 800 watts of power peak and has an RMS rating of 200 watts.

It has a PWM MOSFET power supply and plenty of other features that make this a superior product. There is a low-level input as well as a high-level input with auto-on function. This means you won’t need to worry about turning it on manually each time. It also has adjustable input sensitivity.

Safety features include the same thermal protection circuit, short protection circuit and overload protection circuit as featured on the other Rockville subs. The low pass filter at 50-150Hz is also there, the same as on the others.

With this sub, the bass boost is 0-18dB at 45Hz, more powerful than the other Rockville models, the frequency response is 20-150Hz and the subsonic filter is at 29Hz – so all round, slightly higher specs than the other Rockville subs.

While this sub is no match for expensive top-end models, if you want high quality in this kind of price bracket, this unit is hard to beat. It is capable of giving you some serious levels of bass – and on top of everything else, it looks great too. This is one of the best subs available in this category.

4. Kenwood KSC-SW11 Subwoofer For CAR

Best Under Seat Subwoofer reviews

Here we have another very tasty piece of equipment, this time from another highly respected brand, Kenwood. This slim and compact sub would be perfect for installing underneath your seat – or anywhere else in a vehicle that has limited amounts of space.

This subwoofer has a built-in amp, making the installation much easier than if you choose a model that needs you to install an amp separately. It also has a very cool wired remote that allows you to control the volume, the variable low pass and the crossover from the comfort of your seat.

This sub is rated as 150 watts peak power and 75 watts RMS. While this isn’t a huge amount of power, it offers you great sound quality and precision, and if you are looking for a quality sub with a well-known brand name to back it up, this could be the one.

This is an ideal sub for someone who wants to upgrade their system with a high-quality unit but who don’t need huge amounts of power. This would be ideal for someone upgrading their system for the first time and who needs some extra power but nothing too extreme.

5. Pioneer TS-WX130DA Under Seat Car Audio Subwoofer

If you like to buy products from the best well-known brands, subs from Pioneer are likely to be high on the list of your options. This is a compact, powerful sub with a built-in amp that is ideal for under seat installation but that could also be installed elsewhere if required.

The built-in amp is a D-Class unit and, combined with the sub, can give you up to 160 watts of power peak or 50 watts RMS. Frequency response is 40-160Hz.

This Pioneer sub is extremely well built with high-quality materials. It features a MOSFET power supply, an aluminum cone and a heat resistant voice coil.

The sub is controlled using a wired remote-control device. The remote itself is also a classy piece of gear and allows you to control the gain, phase and low pass frequency without needing to reach under the seat or get out of the car.

With this sub, you are not buying extreme power – although it can still give you a very respectable level of crisp, deep bass. However, this is a high-quality subwoofer that will give your car sound system a real boost. Most Pioneer products are highly recommended, and this one is no different.

6. Cerwin-Vega Mobile VPAS10 Subwoofer

Compared to brands like Pioneer or Kenwood, Cerwin-Vega is a lesser-known name in the world of car sound systems – but in some ways, that makes this an even better investment since you’re only paying for the hardware and not the name.

This is a 10” sub and built-in amp with an extremely rugged cast-aluminum body frame, which gives it superior heat dissipation qualities.

It features a low pass filter of 75-150Hz and a subsonic filter at 35Hz.

It is a very compact unit, meaning it is easy to install under the seats of most cars, and is capable of producing some very fine crisp, deep bass.

Let’s be honest, if you want extreme bass in your car, you’re not going to achieve it by installing a thin under seat sub – but if you are looking for a bass boost from a unit that gives you a respectable amount of power for the money it costs, this unit is another top pick.

7. Kicker 11HS8 Hideaway Car Subwoofer

This under seat 8” sub with built-in amp from Kicker is ultra-compact and designed to fit in even the tightest of spaces. It gives you a decent level of bass, with an RMS rating of 150 watts.

While this sub won’t rattle your windows and vibrate your mirrors, it will give you a decent extra level of bass when you want to turn your music up and play it loud – which is just what you would expect from this type of sub and at this price point.

Ideal for someone looking to upgrade their car sound system who isn’t looking for anything too extreme and who also doesn’t want to spend a fortune. If that sounds like what you’re looking for, then this unit is a recommended option.

8. Sound Storm LOPRO8 Amplified Car Subwoofer

This sub with built-in amp from Sound Storm is a Class A/B 8” unit with a MOSFET power supply for improved switching speeds and all-round better performance. It is compact with a low profile, making it perfect for under seat installation in cars where space is limited.

Features include a variable low pass filter, high- and low-level inputs, a subsonic filter and a variable bass boost to allow you to control how much deep sound you want – if you want to crank it up high, this model lets you do it!

It also includes a wired remote, allowing you to control the sub and amp from the driver’s seat. Another useful feature is the automatic shutoff that protects the sub from overheating or if any other problems occur.

This is another top pick for someone who wants to give their car stereo some extra power – quite a bit of extra power – but due to space limitations, can only consider smaller under seat-style subs. Great value and an excellent choice in this category.

9. Powered Subwoofer By Massive Audio

If you have limited space and don’t have an unlimited budget but you want to add some real power to your car sound system, this subwoofer from Massive Audio is another possibility.

It’s an 8” sub with a built-in Class A/B amp that offers 400 watts peak and 200 watts RMS of power at 4 ohms. It features a variable low pass filter of 50-150Hz and also incorporates noise reduction circuitry.

The unit is controlled by a wired remote, meaning there’s no need to physically adjust it manually, and of course, the most important thing is that it delivers a high level of powerful bass that even some larger subs are not capable of.

Overall, a great option for someone who loves bass who but doesn’t have the space or the cash for something bigger and more expensive. If you need to compromise on space and cost – but don’t want to compromise on sound – this is a sub you should definitely check out.

10. Rockford Fosgate PS-8 Under Seat Car Subwoofer

Another of the most popular brands for car sound system components is the well-established Rockford Fosgate, and this sub is a unit from their Punch range of products.

It is an 8” subwoofer with built-in amp designed for cars with limited space, making it ideal for under seat installation. It is a sub that is designed to give you high power while causing low drain on your car’s electrical system.

It features short protection, thermal protection and reverse polarity protection to keep it functioning correctly, while the industrial-grade vinyl covering keeps it safe physically – as well as giving it a pretty cool look.

This is a powerful but compact sub that will give you reliability and high levels of performance. This is another great option for adding powerful bass to your car’s system without taking up too much space or burning a hole in your wallet.


Ideal option when space is at a premium

As you can see, there are some really great options out there, even if you only have space to install a sub under your seat. With any of these choices, you can look forward to adding some growling bass to the tunes you put on while you drive.