Best Underseat Subwoofer To Boost Your Car Audio In 2020

best underseat subwoofer

Many of you would have thought of adding an extra bass to your car audio. However, leg space issues have been holding you back. If you can relate to this situation, then our list of underseat subwoofer will surely help you to choose a good product in this segment.

Frankly speaking we analyzed and found there are exactly 4 factors one should concentrate on, when selecting the right underseat sub for car. Period. These 4 factors are the most important of all. Have a look into these 4 factors below –

  • RMS Power.
  • Compact Design.
  • Good protection against – Overload, Thermal injury & short circuit.
  • Easy Installation.

We hand picked exactly 3 products keeping in mind the above factors, for your immediate reference as the best in the market. If you want to know in details then read the complete review in next section.

Editor's Choice - Best Underseat Sub
1st Runner Up
Value For Money
Alpine Electronics PWE-S8 Restyle Compact Powered 8-Inch Subwoofer , black
Rockford Fosgate P300-10 Punch Single 10" 300 Watt Amplified Subwoofer
Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub
Bi-color ( Black & Blue )
Editor's Choice - Best Underseat Sub
Alpine Electronics PWE-S8 Restyle Compact Powered 8-Inch Subwoofer , black
1st Runner Up
Rockford Fosgate P300-10 Punch Single 10" 300 Watt Amplified Subwoofer
Value For Money
Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub
Bi-color ( Black & Blue )

Pro Tips : Quick Check
We also recommend you to check the following subwoofer products for your Car / Truck – 

Subwoofer for car

Best shallow mount subwoofer for car

Best competition subwoofer for car

In our detailed list below we present to you some of the best underseat subwoofers with complete know how. If you are looking for installation guide, then here is a step by step guide to install. These subwoofers have been chosen for their sleek design to fit under your car seat, saving space. All these products are chosen based on the above 4 deciding factors for optimum sound performance and long durability. So, read on to find the best in the business.

Check our picks for Top Underseat Subwoofer :

Alpine Electronics PWE-S8 Restyle Compact Powered 8-Inch Underseat Subwoofer :

The Best high performance underseat subwoofer for automobile we think you should check out is the PWE-S8 quad coil powered subwoofer by Alpine Electronics. This behemoth of a subwoofer produces deep and reverberating bass no matter what kind of music you are listening you. If you want to enhance the bass of your current car speakers but have space issues, we suggest you give the PWE-S8 a shot. It has a super compact shape and size that makes it possible for it to fit even in small cramped spaces like beneath your car seat.

PWE-S8 is a powerful subwoofer housed in an 8-Inch heavy duty die cast aluminum enclosure. The cabinet is built for durability and long lasting performance of the internal acoustic parts. The PWE-S8 boasts a mighty 120W integrated amplifier for louder sound. The side panel of the device has speaker-level auto sensing inputs, RCA level inputs and various other buttons for managing remote sub level, gain, phase and LP crossover.

All the controls are provided on a single side panel for ease of handling. Frequency response of the Alpine Electronics PWE-S8 is 32Hz to 150Hz. It has a top power handling of 240W and RMS power is 120W. Dimension of the subwoofer are: 13.4” x 9.1” x 2.8”. It weighs 10 lbs. The PWE-S8 has a rectangular black body with a sand texture finish. A metal mesh covers the top panel for added protection. The company logo of Alpine Electronics with the subwoofer model name is displayed next to the mesh on the top panel.

Key Features :

  •  8-inch restyle compact powered quad coil subwoofer.
  • Heavy duty die cast aluminum enclosure.
  • 120W internal amplifier.
  • Speaker-level auto sensing inputs, RCA level inputs.
  • Frequency response is 32Hz to 150Hz.
  • Max power handling is 240W, RMS is 120W.

Rockville RW10CA Underseat Subwoofer :

This cool 10-inch 800W underseat subwoofer from Rockville will truly rock your day. The thunderous bass effect and high quality performance places this subwoofer on our list. It has a whopping 800Watts max power and a RMS value of 200 Watts. The power supply of the Rockville RW10CA is PWM MOSFET. It is CEA-2006 standard compliant which proves its authenticity in the power ratings. This leaves you assured of the powerful output and volume from this product. All this awesomeness is wrapped in a compact slim and low profile subwoofer enclosure that hardly occupies any space.

The wired remote control is easy to use and all the operations are pretty basic in nature. The device has modern sensor technology for auto turn on and off. It is 10 inches in size with has a built-in amplifier. The installation and wiring is pretty simple and clean in this product. All the output and input ports have been assembled on a single side for easy installation. It has a low-level RCA input and high-level inputs with auto turn on/off. Sound tweaking is much easier in this device with the amazing controls. Input sensitivity of the subwoofer is adjustable. It comes with thermal protection circuitry, overload protection circuitry and short protection circuitry for added protection.

The device has a phase switch of 0ᵒ or 180ᵒ. Frequency response is 20Hz to 150Hz and impendence is 2ohm. Bass boost is low at 0 to 18dB @ 45 Hz and low pass filter is also low at 50Hz to 150Hz. Dimensions are: 12.4” x 13.4” x 2.7”. It weighs 14.25 lbs.

Key Features :

  • It produces 800 Watts peak power and has a RMS value of 200 Watts.
  • It has a MOSFET amplifier.
  • Sensor technology for auto turn on and off modes.
  • Protection against overload, thermal circuit and short circuit.
  • Variable bass boost from 0 to 18 dB at 45 Hz.
  • Has a low pass filter from 50 to 150 Hz.
  • Frequency range varies from 20 to 150 Hz.

Rockford Fosgate P300-10 Punch Single 10-inch Amplified Subwoofer :

The P300-10 Punch is a 10-inch subwoofer by Rockford Fosgate. It is a powered subwoofer with a 10-inch woofer cone and an integrated amplifier. It has a sealed cabinet for extra low-end slam and shaped like a wedge and fits snugly in the trunk of your car. The subwoofer measure 13.3 inches x 18 inches and has two depths, 8.9 inches and 5.9 inches. It weighs 23.8 lbs and is made of heavy-duty 5/8 inch MDF for long-lasting performance.

The subwoofer is scratch and impact-resistant and can take a bump of two in the trunk. The P300-10 Punch has an extruded aluminum heat sink that counters heat build-up due to prolonged use. It keeps the device cool and prevents burnout. It is covered with industrial heat-activated vinyl. Thermal Protection and Voltage Protection further shield it from overheating and very high and very low voltage.

The P300-10 is a self-sufficient sub with a built-in Class D amp. It just needs power, ground and signal from a source to get it started. It has separate low level (1 RCA pair) and speaker level (L/R summed) inputs. The power/ground connector is detachable. It has large AWG input terminals. The gadget has a closed-loop design that ensures the woofer, the cabinet and the amp work cohesively to generate the most optimal sound. There is a 0ᵒ-180ᵒ phase switch and bass boost EQ settings. There is also an adjustable 12db/Octave low pass crossover. You can use these to personalize the output of the subwoofer. For greater convenience, a remote bass boost control is also included.

The Rockford Fosgate P300-10 is a proprietary high output subwoofer. It has a low-current design for efficient operation. It has an intelligent Auto turn on/off function for saving power. Its power handling conforms to CEA-2031 and CEA-2006 industry standards. It also has Klippel certification which makes it one of the top subwoofers in its category. Frequency response of the subwoofer is 25Hz to 200Hz. Crossover controls are: Variable 35Hz to 150Hz, 12dB/Octave Butterworth. Please note that the P300-10 is not an underseat subwoofer although it is designed for automobiles. It is bulkier due to its high bass output. Ideal placement would be in the trunk of your car behind the rear seats or in a roomy storage compartment (if it’s a truck or RV).

Key Features :

  • 300-watt RMS active automobile subwoofer.
  • 10-inch woofer, Class D amplifier, extruded aluminum heat sink.
  • Sealed scratch-resistant 5/8 inch MDF enclosure, Thermal and Voltage Protection.
  • Low-level and high-level inputs, phase switch, bass boost, adjustable 12db/Octave low-pass crossover.

Kicker 11HS8 Underseat Subwoofer :

An actual kicker in the world of subwoofers, the model 11HS8 from Kicker stands at the fourth position on our list. This hideaway underseat subwoofer will fit seamlessly under your seat. The 8-inch enclosure gives an output of 150 Watts. The surprisingly low frequency out from such a compact design has set a new standard. It is a class apart in plug and play bass performance and convenience. For easy and secure installation it comes with Velcro fastened nylon straps. Removal is simple and fast too. It enables bass control and fine-tuning remotely.

Adding to the awesomeness, it features high and low level inputs that can integrate with any factory of after-market head unit. The device has speaker-level inputs, auto turn on/off, bass boost control and a wired remote control. Frequency response is 25 to 120Hz. Variable low-pass crossover is 50 to 120Hz and variable phase control is 0 to 180ᵒ.

Key Features :

  • 8-inch compact underseat powered subwoofer.
  • RMS value of 150 Watts and peak power output of 150 Watts.
  • A quick connect power plug provided.
  • Quick connect harness and Molex plug enables remote turn-on and power and signal.
  • Variable Bass boost of +6 dB has been provided.
  • Phase cancelling switch and automatic turn-on features.
  • Kick ass thunderous performance in a very sleek design.
  • The compact structure is designed such that it fits in the tightest spaces.
  • Speaker-level inputs, bass boost control and a wired remote control.

Pioneer TS-WX130DA Compact Active Subwoofer :

The Pioneer TS-WX130DA is a top-performing active underseat subwoofer. It is 8 inches in size and boasts a durable aluminum cone. The subwoofer has a maximum power output of 160 watts and a nominal power output of 50 watts. It is compact and optimally sized to fit comfortably under the driver’s or passenger’s seat.

The Pioneer TS-WX130DA is fitted with a powerful aluminum cone woofer measuring 8 inches by 5.25 inches. Aluminum makes the cone stiffer so that it does not distort or break easily. The speaker’s surround is made of urethane which helps keep the cone on track. The driver is powered by a built-in Class D amplifier. Therefore, it does not need to be hooked to an external amp which makes installation wire-free.

The subwoofer has a Digital Bass Control with two selectable bass modes: Deep and Dynamic. Deep mode has a frequency response of 20Hz to 200Hz whereas Dynamic mode is between 40Hz to 160Hz. You can use these modes to customize the bass output of the subwoofer based on the genre of music you are listening to. Sensitivity (in car, input: 1W) at Deep mode is 95dB and at Dynamic mode is 100dB. A wired remote control is included in the package. It lets you control the bass modes, gain, low-pass filter and phase settings (0ᵒ, 180ᵒ) from the comfort of your driving seat. You can keep it somewhere close to the wheel so that you can easily reach it while driving.

The TS-WX130DA has an acoustic suspension enclosure for extra bass response. It has a low-profile black cabinet with a grille on top. Lengthwise the gadget is 11 inches and breadth-wise 7 7/8 inches. It has a height of only 2 ¾ inches, meaning it easily slides under car seats or can be tucked away in small storage spaces in a car. For minimizing vibrations, two mounting feet are provided. Harnesses for input and power, fuse holder, cable clamp and other installation hardware are also provided. Warranty period of the device is one year.

Key Features :

  • Compact active underseat subwoofer.
  • Single 8-inch x 5 ¼ inch aluminum cone woofer, urethane surround.
  • Built-in Class D amplifier, max power 160 watts, nominal power 50 watts.
  • Switchable bass modes: Deep and Dynamic; wired remote control, only 2 ¾ inches high.

Rockford Fosgate PS-8 8″ 150W RMS Underseat Powered Car Stereo Audio Subwoofer :

The next item on our list of amazing underseat subwoofers is the Rockford Fosgate PS-8 Powered Car Stereo Audio Subwoofer. It is built with advanced acoustic technology that minimizes stress on the car’s electrical system and battery while successfully maintaining high level power and bass output.  It is designed to achieve optimum sound projection with minimum power supply.

The PS-8 has a cabinet frame made of hardy industrial grade vinyl which protects the internal parts from impact and dust. The device has three kinds of protective circuitry: thermal, short circuit and reverse polarity. It safeguards the subwoofer from damage due to overheating and short circuits. A remote bass level control is included in the package so you can comfortably adjust the bass level from the driver’s seat without having to bend down to reach for the subwoofer.

The Rockford Fosgate PS-8 has a powerful 150W built-in Class D amplifier. The sealed cabinet contains an 8-inch driver and fits perfectly under your car’s seat and in the car trunk. If you have a small car with space constraints, we recommend you go for the PS-8. It has a compact and space-saving shape. Further, its inconspicuous design helps it blend easily with the car interior.

The PS-8 has adjustable low pass crossover (12dB/octave). Max power is 300W and RMS is 150W. It has a 0ᵒ to 180ᵒ phase switch and Quick Disconnect power and signal connections. The device box includes mounting hardware and a power wiring kit with ground, turn-on and power wires. Dimensions of the subwoofer are: 3.3” x 9.4” x 14.4”. It weighs 14.3 lbs.

Key Features :

  •  Underseat subwoofer with 8-inch driver.
  • 150W built-in Class D amplifier.
  • Cabinet made of hardy industrial grade vinyl.
  • Thermal, short circuit and reverse polarity protection circuits.
  • Remote bass level control.
  • Adjustable low pass crossover (12dB/octave).
  • Quick Disconnect power and signal connections.
  • Max power 300W, RMS 150W.

Pioneer TS-WH500A HVT Sealed 8.25″ 150W Active Subwoofer for Car Underseat Installation :

For those planning to crank up the bass of their car audio system, we suggest you check out the Pioneer TS-WH500A HVT sealed and powered active subwoofer. HVT is an acronym for Horizontal Vertical Transforming technology. This state-of-the-art technology converts the horizontal movement of a woofer diaphragm into vertical movement to generate full range and deeper bass. The diaphragm and voice coil work in tandem to nullify the impact of vibrations and distortions.

The TS-WH500A HVT is designed to fit tight spaces under the seat and has a sturdy construction that can withstand impact from the car’s motion. It is equipped with a pair of 7-inch x 4-inch polypropylene woofers with protective rubber surrounds and a 50W integrated amplifier for resounding audio delivery.

The subwoofer has a max power handling of 150W. It punches out deep bass to make your on-road musical entertainment more enjoyable. Frequency response of the Pioneer TS-WH500A HVT is 20Hz to 200Hz. Impendence is 4 ohm and sensitivity is 98dB. Dimensions of the speaker are 17.2” x 11.6” x 4.6”. It weighs 10.3 lbs. The package includes the subwoofer, wiring harness, RCA to speaker wire adapter, wired remote control, cable and mounting brackets, 10 amp ATO fuse, 0.5amp glass fuse and an instruction manual.

Key Features :

  •  Compact 8.25-inch powered underseat subwoofer.
  • Advanced HVT technology.
  • Two 7” x 4” polypropylene woofers, rubber surrounds.
  • 50W integrated amplifier.
  • Max power handling of 150W.
  • 20Hz to 200Hz frequency response.

JBL Bass Pro SL Underseat Subwoofer :

It would be fair to say that JBL as a brand holds the very highly regarded position among underseat subwoofer segment. JBL’s Bass pro SL is a compact enclosed subwoofer with a peak power output of 250W and RMS 125W. It has an 8-inch low-profile woofer and RMS 125W Class D amplifier. It is enclosed in a heavy duty plastic cabinet with ABS construction. There are LED indicators -green and red to depict power and protect modes. It has a really soft start turn on with an audio sense technology for auto on feature. The system has speaker level inputs with Auto Sense Auto-on. Even with the compact size the bass quality is excellent.

The JBL Bass Pro SL has a unique 3- way protection circuitry in the form of thermal, overload and speaker short protection to ensure safety of the device. It has a variable low-pass filter of 50 to 120 Hz, 12dB/octave and a variable bass boost of 0 to +9 dB at 70 Hz. It has a wired bass that which is remote control ready.

The JBL Bass Pro SL has a simple installation process and easily fits under your car seat. It is compatible with GTO RBC which is sold as a separate unit. Frequency response is 35 to 120 Hz. Selectable phase switch is 0ᵒ to 180ᵒ and highest current draw is 12 ampere. The screw- down connection for Ground, Power and Remote are gold-plated. Input sensitivity of the device is as follows: Low – 200mV to 2V; High – 2V to 20V. The speaker has both line-level and speaker inputs. Dimension of the product are: 17” x 13.5” x 6.7”. It weighs 10.1 lbs. Apart from the subwoofer, the box includes a 20 ampere ATO fuse, a 7-inch input harness, mounting screws, 3mm Allen head bit and an instruction manual.

Key Features :

  • 8-inch low-profile underseat subwoofer.
  • Class D amplifier.
  • Max power 250W, RMS 125W.
  • Heavy duty RMS construction cabinet.
  • Speaker level inputs with Auto Sense Auto-on.
  • LED indicators.
  • 3- way protection circuitry in the form of thermal, overload and speaker short protection.
  • Wired bass that which is remote control ready.

Infinity BassLink SM 8″ Ultra-Compact Shallow Profile Hideaway Under Seat Subwoofer :

The next great under seat subwoofer for cars that we’d surely recommend is the Infinity BassLink SM. It is an ultra-compact subwoofer with a slim profile that allows it to fit into narrow tight spaces like under a car’s seat. The Infinity BassLink SM has an 8-inch shallow profile woofer inside a heavy duty engineered ABS plastic enclosure. Its max power output is 250W and RMS power is 125W and it is equipped with a powerful Class D amplifier for loud punchy sound levels.

The subwoofer has high-level (speaker-level) inputs as well as low level RCA inputs. You can control the Audio Sense auto-turn on feature with the help of the high-level inputs. The device has remote and power/ground connections, soft start turn on and gold plated RCA. Frequency response of the Infinity BassLink SM is 35Hz to 120Hz. It has 0ᵒ to 180ᵒ phase control switch. Variable low pass filter is 50Hz to 120Hz, 12dB/octave and variable bass boost is 1 to +9dB@ 70Hz. The box contains the subwoofer, a 20 amp ATO fuse, a 7-inch speaker level input harness, 3mm Allen head bit , mounting screws and a user’s manual. Dimensions of the subwoofer are: 7” x 17” x 14”. It weighs 10 lbs.

Key Features :

  •  Shallow profile ultra-compact underseat subwoofer.
  • 8-inch woofer inside an engineered ABS plastic enclosure.
  • Class D amplifier.
  • Max power output 250W, RMS 125W.
  • High-level and low level RCA inputs.
  • 35Hz to 120Hz frequency response.
  • Variable low pass filter: 50Hz to 120Hz, 12dB/octave.
  • Variable bass boost: 1 to +9dB@ 70Hz.
  • Gold plated RCA.

Rockford Fosgate R1-1X10 10-inch Subwoofer :

The Rockford Fosgate R1-1X10 is a 10-inch powered car subwoofer. It has a sealed MDF cabinet with a high-density carpet and high-current binding posts. It has an internal amp with a max power rating of 400 watts. It is wedge-shaped and has an asymmetrical design. It can be installed in car trunks or other storage compartments in automobiles.

The R1-1X10 is fitted with a durable 10-inch woofer from the Prime (R1S4-10) woofer series. It is powered by an integrated amp with a peak power handling of 400 watts and a continuous RMS power handling of 200 watts. It features an anodized aluminum voice coil former which is a signature innovation of Rockford Fosgate. It delivers excellent powered output and you get the lowest bass signature possible.

The R1-1X10 has Klippel certification and is constructed as per CEA-2031 industry standards. It has a sealed box made of high-quality MDF with a thickness of 5/8 inches. Height of the box is 12.2 inches and width is 15.94 inches. It has two depths, one 7.14 inches and the other 12.11 inches.  The gadget is internally wired to create a 4-ohm amplifier load. The speaker connector works with up to 12 AWG compression terminals. The enclosure is covered with a high-density carpet. It is resilient and keeps the subwoofer safe and scratch-free. There are quick release terminals for easily removing the enclosure whenever you need to. You can install the sub behind the rear seats or in the boot of your car. It is little too big for an underseat placement. Warranty period of the product is one year.

Key Features :

  • Powered 10-inch car subwoofer.
  • Max power 400 watts, RMS power 200 watts.
  • Anodized aluminum voice coil, 5/8 inch MDF sealed enclosure.
  • Cabinet covered with durable carpet, quick release terminals, high-current binding posts.

Rockford Fosgate P300-12 Punch Underseat Subwoofer :

The Rockford Fosgate P300-12 Punch is one of the most highly rated, on our list of top underseat subwoofers. If you want to increase the bass of your existing car audio system but do not want the clutter of wires and the hassle of separate woofers and amplifiers, we suggest you go for the Rockford Fosgate P300-12 Punch. It is designed to deliver high output at low current consumption and comes with thermal and high-voltage protection.

The subwoofer has a powerful 12-inch subwoofer housed in a heavy duty specially sealed cabinet. It is powered by a 300W (RMS) Class D amplifier with top power of 600W. The device, which has wired connectivity, is completely self-sufficient and all-inclusive. Simply power up, ground and send a signal from the source to fire up the system.

The Rockford Fosgate P300-12 Punch is CEA-2031 certified. It includes a remote bass-level control. The variable low-pass crossover is 50 to 200Hz, 12 dB/octave and frequency response is 35Hz to 150Hz. The durable exterior of the subwoofer protects it from bumps and scrapes. It has a 5/8-inch MDF construction for greater protection and long lasting body. It has 12 AWG input terminals. The device features an adjustable bass boost EQ and the bass level can be controlled remotely. Separate low-level as well as speaker-level inputs have been provided. It has auto on/off sensor mode. Dimensions of the product are: 15” x 19.8” x 11”. It weighs 16 lbs.

Key Features :

  • 12-inch underseat subwoofer with 300W (RMS) Class D amplifier.
  • Wired connectivity, adjustable bass boost EQ (remote controllable).
  • Top power 600W, RMS 300W.
  • CEA-2031 certified.
  • 5/8-inch MDF construction for extra protection.
  • 12 AWG input terminals.
  • Auto on/off sensor mode.

Blaupunkt GTHS8 300 watt 8-inch Amplified Underseat Subwoofer :

The Blaupunkt GTHS8 is a powerful 300 watt underseat subwoofer for hatchbacks and sedans. It has a built-in amplifier that drives the 8-inch speaker. It has plenty of customizable features like adjustable input sensitivity and bass boost for you to tailor the music as you like.

The Blaupunkt GTHS8 has a maximum power output of 300 watts and a continuous power output of 100 watts. It has an 8-inch slim woofer cone that is capable of delivering a frequency response of 20Hz to 250Hz. It has a signal-to-noise ratio of >88dB and a total harmonic distortion of <1%. For deep and powerful bass tones, we would certainly recommend the Blaupunkt GTHS8.

This gadget has a 0.15-0.55V RCA low-level input and a 6V high-level input. It has 0dB to 18dB variable bass boost and variable input gain control. It has an adjustable input sensitivity selector and a 40Hz to 250Hz variable low-pass filter. There is a 0-180 degrees phase selector switch. There are several protections to guard the system against sudden changes in electric current and heat. It has Thermal, Short and Overload Protections for comprehensive all-round safety. An LED indicator shows Power and Protections statuses.

The subwoofer comes with a remote controller so that you can easily control the settings from the wheel. The cabinet has a slim profile for fitting in narrow spaces. It is black in color and matches the interiors of a car. Its dimensions are: 13.78 inches x 8.86 inches x 2.95 inches. Fuse rating of the gadget is 30A.

Key Features :

  • Underseat powered subwoofer with wired remote controller.
  • 300 watts max power, 100 watts RMS power, 3-fold protection.
  • 8-inch slim woofer, frequency response 20Hz to 250Hz.
  • Low-level and high-level input, bass boost, low-pass filter, phase switch.

Planet Audio P8UAW 800 Watt Low Profile Amplified 8 Inch Subwoofer :

The Planet Audio P8UAW is another high-performance under seat subwoofer. It has a low profile and compact design for perfect underseat installation. It is unobtrusive and remains hidden from view. The P8UAW delivers serious bass with its 8-inch woofer and 800W (top power output) integrated Class A/B amplifier. RMS power output of the device is 400W. Power supply is MOSFET. With an 800W max power handling capability, the P8UAW assures hard-hitting bass for all genres of music. 

The subwoofer has a remote subwoofer level control, high-level and low-level inputs and phase switch. The P8UAW has variable low pass filter 20Hz to 150Hz and variable bass boost 0 to 12dB @ 45Hz. It also has subsonic filter 20Hz to 50Hz and soft delay remote turn on. When a subwoofer runs non-stop for hours, its system becomes heated due to overload. This makes the device susceptible to many electrical and mechanical anomalies.

The Planet Audio P8UAW has a three pronged protection circuitry which includes thermal, short circuit and overload protection. This unique circuit system safeguards the woofer from overheating, short circuits and overload issues respectively. The device also has a stylish blue backlight LED illumination highlighting the Planet Audio logo on the top panel. Dimensions of the subwoofer are: 13.9” x 9.9” x 3”. It weighs 11.8 lbs.

Key Features :

  •  8-inch low-profile underseat subwoofer.
  • integrated Class A/B amplifier.
  • 800W max power output, RMS power output 400W.
  • Remote subwoofer level control, high-level and low-level inputs.
  • Variable low pass filter 20Hz to 150Hz, variable bass boost 0 to 12dB @ 45Hz.
  • Thermal, short circuit and overload protection.
  • MOSFET power supply.
  • Blue backlight LED illumination highlighting Planet Audio logo.

Sound Storm Laboratories LOPRO10 Amplified Car Subwoofer :

The LOPRO10 is a formidable 1200-watt max power auto subwoofer by Sound Storm Laboratories. It has a 10-inch woofer and a built-in Class A/B amplifier. It has MOSFET power supply which ensures the device is able to switch between full to non-conduction for uninterrupted output.

The subwoofer can be connected to any in-dash stereo. It has separate low (RCA) and high (speaker) level inputs. The low-level inputs accept preamp output signals and the high-level inputs accept speaker output signals. There are also a bunch of functions to tailor the output to your liking. For starters, there is a variable low pass crossover and a 0 to+12dB bass boost. There is a 20Hz to 50Hz subsonic filter and a 0-180 degree phase switch. There is also a remote subwoofer control for easy playback management while driving.

The subwoofer is equipped with a large 10-inch woofer with a single voice coil. Subs with a single voice coil are suitable for low to medium-power applications. An internal amp powers the woofer. It has a peak power handling of 1200 watts and an RMS power handling of 600 watts. Frequency response of the sub is 20Hz to 150Hz and signal-to-noise ratio is >90dB. High-level input sensitivity is 0.6V and low level input sensitivity is 190mV.

The cabinet of the LOPRO10 is black and has a grille on top. It is not very bulky and is only 2.8 inches high so you can place it discretely under car seats. Width and depth are 15.2 inches x 11.6 inches. The device has Thermal, Short, Overload and Fuse Protection. An LED status indicator (Blue and Red light) tells you when the protection is on. A soft delay remote turn-on is also available. The package includes 4 mounting screws, a high-level input harness and a subwoofer remote control with cable. The product has a warranty of one year and it can be extended by another two years.

Key Features :

  • Amplified 10-inch car underseat subwoofer.
  • 1200 watts max power, 600 watts RMS power, built-in Class A/B amplifier.
  • MOSFET power supply, low-level and high-level inputs, low pass crossover.
  • Subsonic filter, phase switch, bass boost, remote subwoofer control, LED status indicator.
  • Thermal, Overload, Short and Fuse Protection, less than 3 inches high, soft delay turn-on.

Pioneer TS-SWX2502 10 inch Shallow-Mount Underseat Subwoofer :

One of the most popular underseat subwoofers currently sold in the market is the Pioneer TS-SWX2502. It is compact in shape and can easily be accommodated under your driver’s seat, front passenger seat or car trunk. It has a non-slip carpeted and scratchproof enclosure.

The TS-SWX2502 has a 5/5-inch fiberboard construction of medium density. Its cabinet is lined with a soft black carpet for keeping the device free from scratches. Sound quality of the TS-SWX2502 hits the top spot with all genres of music. Booming bass and loud and clear sound is its USP. The subwoofer is housed in a 10-inch preloaded and shallow-mount woofer enclosure. It has an extra large cone to increase the cone and gasket surface area without altering the normal external dimensions of the cone. The surface of the cone moves more air and makes the subwoofer produce deeper bass. The cone itself is made of reinforced MICA injection molded resin which is extremely rigid and durable.

The Pioneer TS-SWX2502 also has two spiders for greater cone motion control for stabilizing the excursion of the cone and optimizing its stiffness. The spiders support the linear movement of the subwoofer for a more accurate bass. In other words, the Pioneer TS-SWX2502 under seat subwoofer uses advanced acoustic technology to add loud and resonating bass to your existing car stereo system.

No matter how big or small your vehicle is, the Pioneer TS-SWX2502 scores high on overall performance. Maximum power output of the device is 1200W and nominal power is 300W. Frequency response is 20Hz to 200Hz. Impendence is single 4 ohm and sensitivity is 1W/1meter @ 89dB. The package includes the subwoofer, mounting brackets and screws and an instruction manual. Dimensions of the Pioneer TS-SWX2502 subwoofer are: 8.4” x 18.5” x 14.4”. It weighs 18.17 lbs.

Key Features :

  • 10-inch under seat subwoofer.
  • Preloaded and shallow-mount woofer cabinet.
  • 5/5-inch fiberboard construction of medium density.
  • Cone made of reinforced MICA injection molded resin.
  • Dual spiders for accurate cone motion control.
  • Non-slip carpeted and scratchproof outer frame.
  • Max power 1200W, nominal power 300W.
  • Frequency response is 20Hz to 200Hz.

Overall the above list contains a very comprehensive, economical yet good choice for an everyday use underseat subwoofer.

Check Some Important FAQ Of Powered Underseat Sub For Your Vehicle :

What is an underseat subwoofer ?

An underseat subwoofer is a powered subwoofer for cars. It is a compact box-like woofer with built-in amplification. It is an all-in-one device that directly plugs into a car stereo system. It powers itself and does not require a separate amplifier.

If you are planning on upgrading the bass signature of your car music system, but don’t want to get your hands dirty and are just looking for an easy remedy, you should go for an underseat powered subwoofer. It is a one-stop-shop for all your bass needs. An underseat sub obviates the need to buy a sub and an amp separately, and then figure out a way to wire and mount them. It offers a complete solution as it contains both the subwoofer and the amplifier in a single consolidated unit. All you have to do it connect it to your receiver and an electrical source and you are good to go.

How big is an underseat subwoofer ?

An underseat subwoofer is a flat device with a shallow-profile cabinet. It has a space-saving design which allows it to slide into narrow spaces. A typical underseat sub is no more than 4 or 5 inches tall. It resembles a pizza box, but is thicker and more rectangular than square. The length and breadth are between 10 to 20 inches. The weight ranges from 3 to 12 kg.

An underseat sub works best with what kind of vehicles ?

An underseat subwoofer is a space-efficient gadget. It is suitable for vehicles with limited interior space like hatchbacks, small sedans and pickup trucks.

Where does one mount an underseat sub ?

The best place to install an underseat subwoofer is under the driver’s seat or the passenger seat. If those places are taken, try the rear area if you have a small car or the trunk if you own a sedan. If you have a truck, try mounting it behind the rear bench. The idea is to keep the sub out of sight so it doesn’t get in the way of things, but is still capable of filling the car with booming bass.

How big is the sound ?

An underseat sub produces a notable amount of bass. It boosts low frequencies and enhances the overall sound of the stereo system. However, it is not amongst the loudest automobile subwoofers. You won’t really be turning heads at a red light or rousing your neighbors as you enter your driveway. It doesn’t have a ton of power, but enough to fill up the gaps in the music. For a compact sub, we think it scores really well. It gives you just the right amount of bass without overwhelming the rest of the notes, which is very important.

What should be the frequency response of an underseat subwoofer ?

For a subwoofer to be able to reproduce all the low end frequencies, the ideal frequency response is 20 Hz to 200 Hz. It covers most of the audible bass frequencies and allows for a more complete reproduction of the original soundtrack. 

How does the power and sensitivity of the sub impact the sound ?

The power output of a subwoofer is represented in 2 ways: peak and RMS power. Peak power is the highest power a sub can put out at a given point. RMS power, also known as continuous power, is the average power a sub is capable of delivering over a period of time. Peak power is obviously higher than RMS power. When choosing an underseat subwoofer, pay attention to the RMS power as it is a more realistic representation of the power handling capacity of a subwoofer. For best results, make sure the power rating of the sub is equal to or more than the power the stereo head-unit can supply. 

A sub’s sensitivity is an indication of the amount of output it can produce. A sub with high sensitivity requires less power to put out the same amount of output as a sub with low sensitivity.

Construction of an underseat powered subwoofer :

Most underseat subs have extruded aluminum or ABS plastic enclosures. They have metal grilles to protect against knocks and impact. The circuitry has Overload Protection, Thermal Protection and Short Circuit Protection for trouble-free service. The cones are made of polypropylene or aluminum, and the surrounds are made of rubber. Some subs have single voice coils and some double. For a car subwoofer, a dual-voice-coil sub is better as it is easier to wire. An underseat subwoofer comes with an integrated amplifier to power the woofer driver. A wiring harness and mounting equipment are provided for setting up the system. For connectivity the sub has low-level and high-level inputs. A wired or wireless remote may be added for ease of use while driving. Other functions include low-pass filter, high-pass filter, adjustable input sensitivity and variable bass boost.

Top brands :

Kenwood, Rockford Fosgate, Rockville, Alpine Electronics, JBL, Kicker and JL Audio are some of the top brands selling underseat powered subwoofers.

Pro Tips : Quick Check
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3 thoughts on “Best Underseat Subwoofer To Boost Your Car Audio In 2020”

  1. I appreciate mentioning the other cheap subwoofers but if you are serious about bass. Stick to the JL Audio products.
    They are expensive no doubt but that is the car audio game. Good selection in this article!


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