Our 15 Best Picks:
The 15 Top Slim Car Subwoofer Reviews:
Bestseller No. 1 
Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub
- Rockville RW10CA 800 Watt 10" Slim Car Subwoofer.
- 800 Watts Peak / 200 Watts RMS. PWM MOSFET Power Supply.
- Low Level RCA Input. High Level Inputs with Auto Turn-On Technology.
- Adjustable Input Sensitivity. Soft Delayed Remote Turn-On.
- Thermal Protection Circuit, Short Protection Circuit.
SaleBestseller No. 2 
Rockville SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub
- Rockville SS8P 8" 400w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub.
- Enclosure is made out of cast aluminum which stays cool at all times. Peak Power Handling: 400 Watts.
- RMS Power Handling: 100 Watts. Heavy Duty Mounting Feet. PWM MOSFET Power Supply. Low Level RCA Input. High Level Inputs with Auto Turn-On Technology. Adjustable Input Sensitivity. Soft Delayed Remote Turn-On. Thermal Protection Circuit, Short Protection Circuit. Overload Protection Circuit. Green Power/Red Protect LED. Phase Switch: 0° or 180°.
- Low Pass Filter: 50Hz - 150Hz. Bass Boost: 0 - 12dB @ 45Hz. Built in Subsonic Filter @ 20Hz. THD: < 0.4%. Subwoofer Level Remote Control. Fuse Rating: Single 15A.
- Specifications: Peak Power 400 Watts. RMS Power: 100 Watts. Impedance: 4 Ohm. Dimensions (L x W X H): 11.4" x 8.3" x 2.8" Inches. Frequency Response: 20Hz - 150Hz. Signal to Noise Ratio: >90dB. Sensitivity: 90dB @ 1w / 1m. Input sensitivity, Low level: 300mV. Input sensitivity, High level: 1.0V
SaleBestseller No. 3 
Sound Storm Laboratories LOPRO8 Amplified Car Subwoofer - 600 Watts Max Power, Low Profile, 8 Inch Subwoofer, Remote Subwoofer Control, Great For Vehicles That Need Bass But Have Limited Space, Black
- BUILT-IN AMPLIFIER: With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies
- VARIABLE LOW-PASS FILTER: A low-pass filter is an electronic circuit that removes all the notes below the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s)
- HIGH LEVEL INPUTS: Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO8 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs
- LOW LEVEL INPUTS: Line level inputs, also known as RCA inputs or low-level inputs, use RCA interconnect cables to link the LOPRO8 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers
- VARIABLE BASS BOOST: Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it
SaleBestseller No. 4 
Blaupunkt 300W 8-Inch Amplified Subwoofer
- 30W 8-Inch Amplified Subwoofer.Power source type:Corded Electric.Speaker size:8 inches
- Made with the highest technical quality to ensure maximum reliability and durability
- MAX power handling 300 watts (300 Watts Peak) and an RMS power handling of 120 watts (300 Watts Peak)
- Features variable bass boost, adjustable input sensitivity, and a low-pass filter
Bestseller No. 5 
Rockville RG212CA Dual 12 inches Slim Vented Powered Car Subwoofer Enclosure 2000 Watt Bundle RWK41 4 Gauge Complete Car Amp Wiring Installation Wire Kit with RCA's
- Package Includes: (1) Rockville RG212CA Dual 12 inches Slim Vented Powered Car Subwoofer Enclosure 2000 Watt. (1) Rockville RWK81 8 Gauge Complete Amp Installation Wire Kit with 100 % Copper RCA
- Rockville RG212CA v2 Dual 12" Slim Vented Powered Car Subwoofer Enclosure. Complete all in one system includes built in amplifier, top quality enclosure, and dual 12” subs. Vinyl finished enclosure with side vents tuned to 40Hz. Enclosure is built with ¾” MDF and is ribbed and braced. 2000 Watts Peak power output. 500 Watts RMS. 12“ Super-Slim Subwoofer. Ultra-Stiff Composite Pulp Cone with Kevlar Reinforcement. 3D Molded Acrylic Dust Cap. Expanded & Rolled Steal Basket. High Density Laminated Rubber Surround. High Power Strontium Magnet with Ultra Saturated High BL Motor Structure. Vented Core Magnet Motor Structure. 2” High Temperature Aluminum Voice Coil. 8 mm Washer & Yoke Plates
- 13.6 mm Peak-to-Peak X-Max. 40 oz. Magnet. Slim Vented MDF Enclosure Design. Impedance: 4-ohms. Frequency response: 30Hz-500Hz. SPL @ 1w/1m: 89dB. Dimensions: 29.52" Length x 15" Height 4.37" Top Depth x 6.65" Bottom depth. Unit Weight: 40.12 Lbs
- Amp Features: Built-in 500 Watts RMS / 2000 Watt Mono Block Amplifier. 2 Ohm stable amplifier. Class D amplifier. Extruded aluminum heatsink stays cool even at high volumes. 200mV – 5V Variable Input Level. 12dB Low Pass Crossover Frequency 50Hz-200Hz. Low Level RCA Inputs. Remote level attenuation: 0 to -32.2 dB. 3.7 second turn on delay. High Level Speaker Level Input with Auto Start Music Sense. RJ11 Jack for Dash Mounted Bass Remote
- Rockville RWK81 8 Gauge 2 Channel Car Amplifier Wiring Installation Kit. (1) 17’ High Grade Twisted Pair of 100% Copper RCA Cable. 17’ 8 Gauge Translucent Blue Super Flex Power Cables. 17’ 18 Gauge Blue Remote Cable. 17’ 16 Gauge Clear Speaker Wire. 3’ 8 Gauge Super Flex Ground Wire. Gold Plated AGU Heat Resistant Fuse Holder. 60 Amp AGU Gold Plated Fuse. 7’ Split Tube Loom. Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, Spades, and Grommets. Soft abrasion proof insulating jacket allows for 100% improved flexibility. PVC outer jacket can with-stand an extreme temperature range of -40 to 220 degrees F
Bestseller No. 6 
Rockville Rws12ca Slim 1200 Watt 12" Amplified Powered Car Subwoofer Enclosure ,Black
- Rockville Rws12ca slim 1200 Watt 12" Amplified powered car Subwoofer Enclosure..Impedance: 4 ohm.Speaker size:12 inches
- 1200 watts peak power output. 300 watts RMS. 12" Super slim subwoofer.
- Ultra stiff composite pulp cone with Kevlar reinforcement. 3D molded acrylic dust cap. Expanded & Rolled Steal basket.
- High density laminated foam Surround. High power strontium magnet with ultra Saturated high BL motor structure.
- Vented core magnet motor structure. 2" High temperature aluminum voice coil. 8mm washer & yoke plates. 13.6mm Peak-to-Peak x-max. 70oz.
Bestseller No. 7 
Kicker 44TCWC104 CompC 10" Truck Sub Box Enclosure 4 Ohm
- 3/4" medium-density fiberboard construction covered with carpet
- 4-ohm total impedance
- power handling: 300 watts RMS
Bestseller No. 8 
KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant
- New Forced-Air Cooling helps this CompRT sub run 20 percent cooler
- ONE 8" thin-mount CompRT subwoofer and a high-output reFLEX passive radiator which intensifies bass output
- Easily mounts in cargo area with no space issues, and resists stacking weight
- Minimal mounting depth without sacrificing musical punch
- True, hard-hitting KICKER bass from a shallow-mount design
Bestseller No. 9 
Rockville RG212CA Dual 12 inches Slim Vented Powered Car Subwoofer Enclosure 2000 Watt
- Features of RG212CA v2: Rockville RG212CA v2 Dual 12" Slim Vented Powered Car Subwoofer Enclosure, Complete all in one system includes built in amplifier, top quality enclosure, and dual 12” subs, Vinyl finished enclosure with side vents tuned to 40Hz, Enclosure is built with ¾” MDF and is ribbed and braced, 2000 Watts Peak power output, 500 Watts RMS, 12“ Super-Slim Subwoofer, Ultra-Stiff Composite Pulp Cone with Kevlar Reinforcement, 3D Molded Acrylic Dust Cap, Expanded & Rolled Steal Basket
- High Density Laminated Rubber Surround, High Power Strontium Magnet with Ultra Saturated High BL Motor Structure, Vented Core Magnet Motor Structure, 2” High Temperature Aluminum Voice Coil, 8 mm Washer & Yoke Plates, 13.6 mm Peak-to-Peak X-Max, 40 oz. Magnet, Slim Vented MDF Enclosure Design, Impedance: 4-ohms, Frequency response: 30Hz-500Hz, SPL @ 1w/1m: 89dB, Dimensions: 29.52" Length x 15" Height 4.37" Top Depth x 6.65" Bottom depth, Unit Weight: 40.12 Lbs
- Amp Features: Built-in 500 Watts RMS / 2000 Watt Mono Block Amplifier, 2 Ohm stable amplifier, Class D amplifier, Extruded aluminum heatsink stays cool even at high volumes, 200mV – 5V Variable Input Level
- 12dB Low Pass Crossover Frequency 50Hz-200Hz, Low Level RCA Inputs, Remote level attenuation: 0 to -32.2 dB, 3.7 second turn on delay, High Level Speaker Level Input with Auto Start Music Sense, RJ11 Jack for Dash Mounted Bass Remote
Bestseller No. 10 
Rockville USS8 8" 600w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub, Black
- Rockville USS8 8" 600w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub. 600 Watts Peak / 150 Watts RMS. Heavy Duty Mounting Feet. PWM MOSFET Power Supply. Low Level RCA Input..Impedance: 3 ohm.Speaker size:8 inches
- High Level Inputs with Auto Turn-On Technology. Adjustable Input Sensitivity. Soft Delayed Remote Turn-On. Thermal Protection Circuit, Short Protection Circuit. Green Power/Red Protect LED.
- Phase Switch: 0 Degree or 180 Degree. Low Pass Filter: 50Hz - 150Hz. Bass Boost: 0 - 12dB at 45Hz. Subsonic Filter: 20Hz - 50Hz. THD < 0.15%. Subwoofer Level Remote Control. Fuse Rating: Single 20A.
- Specifications: Maximum Power RMS: 150 Watts. Impedance: 3 Ohm. Dimensions: 13.6 x 9.9 x 2.9 (L x W X H) Inches. Frequency Response: 15Hz - 125Hz.
- Signal to Noise Ratio >82dB. Sensitivity: 90dB at 1w / 1m. Input sensitivity, RCA level 195mV. Input sensitivity, HIGH level 5.6V.
SaleBestseller No. 11 
KICKER 46HS10 Car Audio Hideway Compact 10" Slim Powered 300W Sub Box Enclosure
- Now includes a 10-inch sub model, along with the 8-inch
- 180 Watt amplifier drives the HS10; 150 Watt amp the HS8
- Ultra-compact at just more than 3" high
- Minimal Parts and Quick-Connect Molex Plug and Harness
- Remote Bass Control Included
Bestseller No. 12 
BOSS Audio Systems BAB10 Amplified Car Subwoofer - 1200 Watts Max Power, Low Profile, 10 Inch Subwoofer, Remote Subwoofer Control, Great for Vehicles That Need Bass But Have Limited Space
- BUILT-IN AMPLIFIER: A built-in 1200 Max watt amplifier powers the subwoofer
- PULSE WIDTH MODULATED: This design controls the output voltage and current precisely by not only removing the output current sensing loss, but also eliminating all secondary feedback circuitry. It increases efficiency, is lighter, smaller reliable
- VARIABLE LOW-PASS FILTER: A low-pass filter is an electronic circuit that removes all the notes below the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s)
- HIGH LEVEL INPUTS: Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the BAB10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs
- LOW LEVEL INPUTS: Line level inputs, also known as RCA inputs or low-level inputs, use RCA interconnect cables to link the BAB10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers
Bestseller No. 13 
RECOIL SL1708 240 Watt 8" Under-Seat Slim Amplified Car Subwoofer with 99.99% Oxygen Free Copper Installation Wiring Kits
- All in one 8"(210mm) subwoofer with small unit design to fit under most vehicle seats.
- Built-in Class-AB amplifier, "All-In-One Bass Addition Package "no need for external amplifier.
- Die-cast aluminum heatsink.High quality material design and craftsmanship.Supports RCA (low level) OR speaker(high level) signal input from audio source
- Adjustable GAIN control to match original vehicle system, so all speakers complement each other
- Easy-to-use control adjustments conveniently located on side of unit. Remote bass volume control knob
Bestseller No. 14 
Rockville RVS12A 12" Slim Vented Powered Car Subwoofer Enclosure, 1400 Watts
- Rockville RVS12A Slim 12" 1400 Watt Amplified Car Subwoofer in Vented Enclosure with Shallow Enclosure.
- 1400 Watts Peak power output. 350 Watts RMS. 12" Subwoofer with 50 Oz magnet. Subsonic filter preset to 30Hz. Vented enclosure plays tight and deep bass compared with the sealed version of this. The enclosure is a little bit bigger than the sealed version we make but this is still shallow and the sound of this is significantly better and this is still really small. MDF Enclosure (high quality NOT particle board!). 2 High Temperature Voice Coils.
- Ultra-Stiff Composite Pulp Cone with Kevlar Reinforcement.. 3D Molded Acrylic Dust Cap. Expanded & Rolled Steal Basket. High Density Laminated Foam Surround. High Power Strontium Magnet with Ultra Saturated High BL Motor Structure. Vented Core Magnet Motor Structure. 8mm Washer & Yoke Plates. 13.6mm Peak-to-Peak X-Max. Aviation Grade Black Tweet Carpet with Embroidered Logo. Black Texture Synthetic Leather Front Panel. Impedance: 4-ohms. Frequency response: 30Hz-500Hz. SPL @ 1w/1m: 89dB.
- Dimensions: 26.49" Length x 15.2" Height 6.8" Top Depth x 8.9" Bottom depth. Unit Weight: 32.55 Lbs.
- Amp Features: Built-in 300 Watts RMS / 1200 Watt Mono Block Amplifier. 150mV - 5V Variable Input Level. 12dB Low Pass Crossover Frequency 50Hz-250Hz. Low Level RCA Inputs. High Level Speaker Level Input with Auto Start Music Sense. RJ11 Jack for Dash Mounted Bass Remote
Bestseller No. 15 
KICKER CompRT 10"(25cm) subwoofer in Thin Profile encl, 2ohm, RoHS Compliant
- Active thin-mount CompRT Subwoofer paired with passive ReFLEX sub for deep bass
- CompRT features Forced-Air Cooling - 20% cooler for increased reliability
- Compact enclosures with tough MDF construction for behind or under the seat
Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API