The Best Slimline Subwoofer With Built-In Amplifier In 2021

After outstanding research, I have listed these Slimline Subwoofers, which fulfill your music listening satisfaction and gives an advantage of compact body design that you can install the sub in under a seat or footwell without trouble. The second advantage is the budget, which is not much high and you can easily buy a subwoofer under normal budget.

Pioneer TS-WX130DA Slim Active Subwoofer

Color Black
Speaker Type Subwoofer
Model Name TS-WX130DA
Speaker Size 11 Inches
Amplifier Yes- Built-in Amp
Power 160W max
Deep Mode 20Hz-200Hz
Digital Bass Control Yes
Gain Control Yes
Frequency Control Yes
Bass Mode Yes

The list starts with Pioneer TS-WX130DA, which is well known as a tremendous slimline subwoofer due to its small body design. For a variety of music styles, the Pioneer subwoofer provides excellent range, and its bass is more than enough and gives you superior sound inside the car.

It is a black slimline subwoofer, and due to its black body design, it is a perfect match with black car seats, and you can easily mount it under the car seat or footwell. If you have a car radio like Pioneer DEH-X7800DAB, then the subwoofer is perfect because the subwoofer is born to be coupled with these types of car radios.

The main benefit you will get after mounting the subwoofer with DEH-X7800DAB types of car radios will perfectly control the subwoofer throughout your car radio. It is an active subwoofer or LPF subwoofer, and the remarkable thing is that it has a built-in Class D amplifier.

The subwoofer digital bass response is superb, and if you want to increase performance or tailor frequency response, you can use different modes (Gain, Deep mode, Dynamic listening mode).

After using the Pioneer TS-WX130DA, you are able to control both phase & bass modes with a remote. The subwoofer TS-WX130DA can easily come under a $200 budget, and in this price range, it is the best slimline subwoofer with built In amp.

Our Rating: 84/100

  • Excellent Compact Subwoofer.
  • Installation is super easy.
  • It sounds amazing.
  • Produce much more bass.
  • It has a Built-in Amplifier and features many modes.
  • Easy to wire power.
  • High-level input.
  • The subwoofer doesn’t go as loud as some people like it.

Kenwood KSC-PSW8 Slimline Sub

Brand Kenwood
Speaker Type Subwoofer
Model Name KSC-PSW8
Speaker Maximum Output Power 250 Watts
Amplifier Yes Build-In Class D amp
RMS Power 150 watts (250 watts maximum)
Sensitivity 81 dB
Remote Control Yes
Woofer 8-inch

The next is the Kenwood KSC-PSW8 review. The sound produced by this subwoofer is enough to punch for your taste. Like Pioneer TS-WZX130DA, the KSC-PSW8 also has a black body design, but it is not much slim, unlike the Pioneer subwoofer.

But still, we can say best slimline subwoofer due to its compact powered enclosure, and for most vehicles, you can easily fit under the seat quickly and take less space. Under the $200 price range, the compact 8" woofer provides excellent quality bass, which equals a larger sub in your trunk.

It has a tremendous rigid enclosure that eliminates rattles, and also you will get a pre-installed amplifier. The built-in amplifier of Kenwood KSC-PSW8 will easily feed the speaker RMS, which is up to 150 watts. If you are using a Kenwood stereo, then we will recommend you the KSC-PSW8 subwoofer.

The two main benefits of connecting the Kenwood slimline subwoofer with Kenwood stereo are sound differences which are unique, and the installation process, which will get more efficiently, and you need quite a few settings to do on the head unit. The Kenwood subwoofer wired remote features rotary volume control, rotary frequency control, and low pass filter options, which helps you control volume, frequency, and setting subwoofer low pass filter (50Hz to 80Hz range). So, in a $200 budget, the Kenwood KSC-PSW8 is the best slimline subwoofer with a built in amplifier for you.

Our Rating: 90/100

  • Best Small size subwoofer.
  • Easily fit under the front passenger seat.
  • Simple connections.
  • Two plugs, that's it.
  • Enough punch (150 watts RMS)
  • The remote has not much control options by comparison with SM/JBL Bass, Pro remote controller.

Rockford Fosgate PS-8

Brand Rockford Fosgate
Speaker Type Subwoofer
Sub Size 8" shallow subwoofer
Speaker Maximum Output Power 150 Watts
Amplifier Class D amplifier 150-W
Bass level control Yes
Remote Control Option Yes

Let's talk about the Rockford Fosgate PS-8 subwoofer. It has an 8" shallow subwoofer which you will find on a custom sealed enclosure. Like Kenwood KSC-PSW8, the Fosgate PS-8 is also very compact and takes less space which you can easily place under the seat or footwell of your vehicle perfectly.

The body structure of the PS-8 sub is pretty solid, and on the front, a reliable black grill is installed for subwoofer protection. In the front middle, you will find silver Rockford Fosgate installed, which shines much elegantly. You will find all subwoofer connecting and controlling options on the left side, which helps you set up the subwoofer properly.

Like other listed subs, it also has a built-in Class D 150 -Watt amplifier. The PS-8 slimline subwoofer is all-inclusive, and you only need to connect, then run power and use it. You can handle the subwoofer fully by using awesome features like adjustable 12db, adjustable bass boost EQ, hi-level/low-level inputs, and 0°/180° (phase-switch) for better quality sound.

The remote controlling option for the PS-8 compact sub is also available, helping you in bass level control, all power, ground, turn-on, etc. This slimline sub you can easily get under the $300 range, and no doubt in that price range, the Rockford Fosgate is providing much premium sound quality, and overall we can say it is the best slimline subwoofer with built in amplifier.

Our Rating: 87/100

  • Ideal for lack of space.
  • Easy to install.
  • A good amount of bass.
  • Solid base.
  • Good installation subwoofer kit.
  • Nice little thump.
  • Not budget-friendly subwoofer.

Alpine Electronics PWE-S8

Brand Alpine
Color Black
Speaker Type Subwoofer
Model Name Alpine Restyle
Speaker Size 8-inch subwoofer
Amplifier 120W amplifier
Frequency Response 32Hz-150Hz
Model PWE-S8

Next on our list, we have a restyle compact powered subwoofer named Alpine Electronics PWE-S8. The subwoofer cast aluminum body enclosure is pretty solid, and an 8-inch sub and 120W amp housed together in it. You can fit it under the seat of your car, sedan trunk, SUV's hatch, or under the seat of the truck effortlessly, and you don't need to be worried about connections of sub.

The PWE-S8 does not take a ton of power, and personally, I don't get any issue when on my fuse-box when I tapped it into a spare and after then ran it under the seat of my car. After great observation, I would recommend that if you have a small vehicle, this one is the best slimline subwoofer with a built-in amplifier.

But for loud bass lovers, this subwoofer is not a better choice. For a large vehicle ( a large van), the subwoofer is good for the people immediately near it, but it is not powerful enough. If we compare it with KSC-PSW8 sub or Pioneer TS-WX130DA, then in bass quality, the PWE-S8 performance is not much better, but the similar thing in comparison with both subwoofers is controlling option which are Phase, Gain, LP Crossover you will get on the side panel.

Our Rating: 91/100

  • Pretty straightforward subwoofer.
  • Built-in amplifier.
  • Die-cast aluminum enclosure.
  • Low, punchy, accurate bass.
  • Auto-sensing Speaker Level Inputs.
  • Greater flexibility during installation.
  • For earth rattling bass lovers, this Alpine PWE-S8 sub is not a better choice.
  • Sub for small cars.

Kenwood KSC-SW11

Brand Kenwood
Speaker Type Compact powered subwoofer
Model Name KSC-SW11
Control Method Remote
Enclosure Aluminum enclosure
Crossover Variable low-pass crossover(50-12)
RMS power 75 watts

If you have a car with small speakers, then the Kenwood KSC-SW11 subwoofer is a perfect choice for you and will provide you a more balanced sound. Like PWE-S8, the KSC-SW11 body also has an Aluminum body enclosure and takes less space.

The subwoofer will help you in adding low-end bass to your car audio. Personally, I use a KSC-SW11 subwoofer with my beloved 2003 Nissan Frontier (crew cab), and several years ago, I decided to replace factory speakers but, after replacement, I wouldn't get enough bass.

Then someone suggested Kenwood sub, and after connecting the subwoofer, I got more quality sound to hear. As it is a slimline sub, then the sound expectations are also minimal from it, and the entire unit is also high quality. At $300 price, you will find Kenwood KSC-SW11 as the best slimline subwoofer with a built-in amplifier, and you will get Noise-less sound from it.

Our Rating: 89/100

  • Great compact powered subwoofer.
  • Installation is easy.
  • Sounds great and not distorted.
  • It adds more low bass.
  • Good price range.
  • Amp and sub are decent.
  • Fits under the seat well.
  • Hardware harness included.
  • Sub not for loud bass lovers.

Theater Solutions SUB8SM

Brand Theater Solutions
Color Mahogany
Speaker Type In Wall, Subwoofer
Model Name SUB8SM
Speaker Size 8-Inches
Peak Power 50-Watts
Frequency Response 35Hz-150Hz
Impedance 8ohm
Design RFL Bass Reflex Design
Gain Control Yes
Enclosure High density MDF Enclosure

For a $200 budget, Theater Solutions SUB8SM is the best slimline subwoofer with a built in amplifier on our list. Unlike other listed subs, Its body color is Mahogany, and if you are tired of black color, then this Mahogany slimline subwoofer is an excellent choice for you. As you are finding a slimline subwoofer with an ideal build-in amp, so what about the SUB8SM subwoofer? It has a digital high-efficiency amplifier that will provide you significant amplification, and you have to connect it with your car and then get ready for high-quality sound.

In comparison with KSC-SW11, KSC-PSW8, TS-WX130DA, the SUB8SM subwoofer can also use home theater systems, and you can fit it on your wall or in the ceiling for home entertainment. In my opinion, I wouldn't recommend you to use the SUB8SM subwoofer for car audio because mainly designed for home theaters.

If you are in search of car subwoofers, then read our first five listed subwoofers description carefully and select the best compact sub for car audio. The SUB8SM sub mainly comes in two different colors, 1st is mahogany finish, and the other is black finish. With the SUB8SM subwoofer, you will get stand mounts and hanging mounts and also some extra screws for mounting to round out this sub. So, overall it is the best slimline subwoofer with a built in amplifier under $200.

Our Rating: 85/100

  • Built-in auto shut off.
  • Beautiful mahogany finish.
  • Lush bass.
  • Budget slimline subwoofer for home theater.
  • Moisture-resistant materials.
  • Physical footprint.
  • Excellent features for installation.
  • The cabinet is plastic Formica.

Planet Audio P8UAW

Brand BOSS Audio Systems
Speaker Size 8-Inche
Connectivity Technology RCA
Speaker Maximum Output Power 800 Watts
Amplifier 800-Watt -- Built-in Amp
Subsonic Filter Yes
Variable Low Pass Filter Yes
Switchable Phase Control Yes

Next is the Planet Audio P8UAW review, and if you are looking for a subwoofer for Jeep Wrangler, then it is a great choice. I recommend you this subwoofer for your Jeep Wrangler due to its elegant body design, which seems a perfect match with Jeep Wrangler. On the front, you will find 8 Inch subwoofer and 800-watt Amplifier housed in a solid black enclosure, and for subwoofer protection, a robust grill is installed on it.

Below the subwoofer grill, you will find a Planet Audio logo with an elegant blue backlight that glows elegantly. All connecting options are available on the right side of the subwoofer body (Power, high-input, fuses) and the backlight turn-on/off button. The company Planet Audio is much famous in the audio equipment industry and manufactures excellent quality best audio equipment. The P8UAW is providing excellent bass in less space in a reasonable price range.

The sub is pretty easy to install under the seat of many vehicles. In this sub, both High Level and Low-Level RCA Inputs are available for setting up quickly. Through the remote controller, the subwoofer can be fully controlled easily by the person sitting in the car's front driving seat. No doubt the Planet Audio P8UAW subwoofer is well-built, and under the $300 price range, you are getting the best slimline subwoofer with built in amplifier.

Our Rating: 88/100

  • Great control over the frequencies.
  • Variable Input Control.
  • LED Illuminated Logo.
  • Short Protection and Phase Control.
  • Low Profile Low-profile subwoofer.
  • Good quality bass.
  • Takes less space.
  • MOSFET and Class A/B.
  • Subwoofer May-be damage due to over-usage.

NHT Super 8

Brand NHT
Color Gloss Black
Speaker Type Subwoofer
Speaker Size 8 Inches
AMP PWM Amplifier
Filter Functions Yes-Low Pass and High Pass Both
LFE Input Yes
Wireless Option Yes-Back Panel USB Connector

The last subwoofer is NHT Super 8 on our list. It is not much compact compared to Planet Audio P8UAW and other listed subs, but I am not saying that it is not a slimline subwoofer or comparing it with the Xxx xbx800 Audio sub.

In size, the sub is normal, and for people who want a subwoofer for home or office for listening to music, then it is a perfect choice. The bad thing about NHT Super 8 sub is that you cannot use it for your vehicle. Its PWM Amplifier is much efficient and features lots of functions. The NHT Super 8 sub makes every possible connection for any surrounding sound setup and has speaker-level inputs ( built-in 100Hzk).

The removable speaker grill is installed on the front, protecting the 8-Inch sub near it. On the backside, all subwoofer connecting and controlling options are available (Crossover Hz, volume, power, LFE-In, Line-In, Wireless-In). With a low price tag, the subwoofer bass is much powerful, and for those who are finding a compact subwoofer for office or home, I will recommend the NHT Super 8 sub to buy from amazon.

Our Rating: 90/100

  • Excellent small subwoofer.
  • Easy to integrate with the satellites.
  • Very attractive in gloss black.
  • Good price tag.
  • Wireless Option also available.
  • The Bass sounds loud.
  • Take some more space.