Best 8 Inch Subwoofers Reviews

If you aren’t familiar with that thumping bass that you can feel in your chest, you just aren’t getting the full audio experience. A vehicle filled with quality speakers can be nice. However, A good subwoofer will add soul to your music and turn your car sound system into audio heaven.

Without bass, a music track loses its vibe. The subwoofer is the piece of equipment that holds the utmost importance in your car audio system, so you should be more careful while buying a new subwoofer for your car especially when money is the limiting factor.

Nowadays, just about every car audio manufacturer makes some sort of compact subwoofer option. People tend to think that bigger is always better but if you’re paying attention to anything technology related, you’d know that is not always the case especially when it comes to audio.

Want a peek at some of the best 8 inch subwoofer options out there today? Check out our roundup of killer compact 8 inch car subs.

#1- Skar Audio ZVX-8 D4 2 Inch Sub Review

  • Dual 2 Ohm Voice Coil Configuration
  • Competition Grade Pressed Paper Cone
  • Stitched High Roll Foam Surround
  • Massive Triple Stacked Magnet
  • 2.5" High Temperature Copper Voice Coil

Size 8"
Frequency range 40 - 500 Hz
Power Handling 
  • RMS :    900 watts
  • Peak :    1,100 Watts
Sensitivity 80.4 dB
Mounting Depth 6.5"
Impedance 4 ohm


Skar Audio ZVX-8 D4 8 inch car subwoofer reviewSkar Audio, despite being a newcomer to the car audio industry, offers some of the best car subwoofers in the market. Their subs don’t only perform very well, but they’re also relatively affordable.

The Skar Audio ZVX-8 is the go to 8″ inch subwoofer when it comes to SPL. This little monster is designed to be one of the best competition subwoofers on the market. It’s featued with a 2.5-inch high temperature voice coil, and an extremely powerful 156oz triple stack ferrite motor. Combine those features with its competition grade cone that’s bonded to a high roll foam surround, and you get a subwoofer that’s going to rattle mirrors and shake windows.

This 8 inch car subwoofer comes in a dual 2 Ohm voice coil and dual 4 ohm voice coil configurations. It’s rated for a sensitivity rating of 80.4 dB and can handle up to 900 watts of power RMS. That’s insane.

If properly powerd and mounted in a suitable enclosure, this thing can get loud, really loud.

That being said, if you’re looking for a hard-hitting 8 inch car subwoofer that can make a night and day difference, then look no further, you just found it!

#2- Rockford Fosgate P3SD2-8 8 inch Sub Review

  • Anodized aluminum cone with M-Roll Santoprene™ surround
  • Flex-fit Mounting pattern
  • Proprietary spider venting/cooling technique
  • StampCast basket with integrated spider venting
  • High modulus Kevlar re-inforced paper-pulp cone
  • Semi-flexible, PVC removable protective motor cover
  • Tall-profile VAST Santoprene surround
  • Dual tear & fatigue resistant poly-cotton spider with woven tinsel leads
  • Fatigue resistant and reduced strain "stitched on" flexible lead wire design
  • Optimized motor magnetics with extended pole and bumped vented backplate
  • High temp 2" voice coil w/ spun-laced Nomex insulating re-inforcement collar

Size 8"
Frequency range 38-250 Hz
Power Handling 
  • RMS :   150 watts
  • Peak :   300 Watts
Sensitivity 82 dB
Mounting Depth 2-5/8"
Impedance 4 ohm
Sealed box volume .20-.70 cubic feet
Ported box volume .75 cubic feet


Rockford Fosgate P3SD2-8- Best 8 inch car subwoofer reviewRockford Fosgate is one of the most established brands in the car audio industry. They were founded in 1973, and they’ve been churning out various quality car audio components ever since.

The P3SD2 is one of the best 8 inch subwoofers that Rockford Fosgate has to offer. However, this small subwoofer won’t shake the doors off your vehicle, but it will add great depth to your music with it’s accurate, clea bass bass.

Rockford Fosgate P3SD2 It’s a good deal for the price. I mean while most 8 inch subwoofers are are priced at over $200 easily, this one can be purchased for around $100, respectively. However, the Rockford-Fosgate P3SD2 does not forfeit quality for price. This thing can deliver impressive bass performance thanks to advanced materials and engineering

Speaking of materials, the Rockford Fosgate P3SD2 subwoofer uses an anodized aluminum cone and dust cap, which makes the woofer light and easier to drive, yet rigid enough to maintain its shape under maximum load. Its cone is supported with M-Roll Santoprene™ surround which provides excellent excursion for maximum output while being durable enough to last a lifetime.

Rockford Fosgate P3SD2 features a shallow-mount profile, with abundant venting to help against thermal breakdown and mechanical failure. At just 2-5/8 inches deep, this sub will fit into spaces where a traditional woofer cannot be used.

This subwoofer has a sensitivity rating of 82 dB and can handle up 150 watts (75 watts per voice coil) of power on continuous basis. Its dual 2-ohm voice coils configuration allows for multiple wiring options.

To drive this single subwoofer, we recommend a mono amplifier rated between 100 and 225 watts RMS at 4 ohms.

#3- Kicker 11HS8 Hideaway Subwoofer Review

  • Built-in 150 watts RMS amplifier
  • Variable low-pass crossover (50-120 Hz)
  • Variable phase control (0 or 180 degrees)
  • Bass boost control (0dB to +6dB)
  • Speaker-level inputs
  • Auto turn-on switch
  • Wired remote control

Size 8"
Frequency range 25 - 120 Hz
Power Handling 
  • RMS :   150 watts
  • Peak :   N/A
Sensitivity N/A
Enclosure Type Sealed
Impedance N/A
Dimensions 14-1/4"W x 3-1/4"H x 9-3/8"D


Kicker 11HS8 Hideaway 8 inch powered subwoofer reviewIf you need to quickly add bass to your car sound system or want to avoid yourself the hassle of purchasing separate amplifier, subwoofer, and enclosure, then the Kicker 11HS8 Hideaway car audio powered subwoofer is the right one for the job!. This is a convenient sub for small spaces.

Kicker 11HS8 Hideaway is one best 8 inch powered subwoofers on the market. It features an ultra-compact design which allows it fit in tight locations. At just over three inches high and nearly 14 inches long, the Kicker 11HS8 Hideaway combines an 8-inch subwoofer powered by a built-in 150-watt amplifier to add decent thumping bass to any vehicle from the tightest locations such as under the seats or in storage areas where a traditional woofer cannot be used.

This powered subwoofer is featured with a remote control bass knob that you can use to adjust the bass level on the fly, as well as an adjustable low-pass crossover, variable +6dB bass boost, phase-cancelling switch for max output and two automatic turn-on options. It also features high- and low-level inputs for integration with nearly any factory or aftermarket head unit. Additionally, Kicker included Nylon straps with Velcro® fasteners to make it easier for your to mount the sub.

As for cons, it’s really difficult to think of any. If anything, I’d say that this small setup is not going to turn your ride into a rolling thunderstorm of bass, but it’ll add some depth and punch to any type of music you like playing.

#4- Polk Audio db840 8-Inch Sub Review

  • Polypropylene cone woofer with Santoprene rubber surround
  • 1.5" voice coil
  • Vented cone/coil coupler
  • Klippel certified speaker
  • Fire-retardant NOMEX spider with linear motion
  • Triple vented 4-layer Kapton single 4 ohms voice coil
  • Marine certified: capable of withstanding harsh marine environment

Size 8"
Frequency range 30 - 200Hz
Power Handling 
  • RMS :   180 watts
  • Peak :   360 watts
Sensitivity 85 dB
Top-mount depth 4"
Impedance 4 ohms
Sealed box volume 0.35 cu. ft.
Ported box volume 0.6 cu. ft.


Best 8 inch subPolk Audio db840 is another great 8 inch subwoofer to consider. It’s going to be the cheapest pick of the lot by far. However, despite its low price tag, this subwoofer can produce a nice sense of shake and punchy lows when you play your heavy bass tracks.

Polk Audio db840 features a rigid polypropylene cone supported with durable Santoprene™ surround built to handle big power over the long run. As with most Polk Audio speakers and subs, this subwoofer was built and tested rigorously to ensure that it can stand up to sunlight, moisture, and extreme temperature changes, which makes it not only suitable for vehicles but also for boats.

This 8″ Polk Audio subwoofer boasts a sensitivity rating of 85 dB. It can handle up to 180 watts RMS and has a frequency response between 30 to 200Hz.

If you’re on a tight-budget and looking for an affordable subwoofer to complement your OEM system, then Polk Audio db840 could be a decent choice. If properly powerd, this sub can get fairly loud, and slam nice distortion-free bass.

#5- JL Audio 8W3V3-4 8″ Subwoofer Review

  • Mineral-filled polypropylene cone
  • Nitrile-butylene rubber surround
  • DMA optimized motor system
  • Single 4 ohm configuration

Size 8"
Frequency range 28-250 Hz
Power Handling 
  • RMS :   250 watts
  • Peak :   250 watts
Sensitivity 83Db
Top-mount depth 4-9/16"
Impedance 4 ohms
Sealed box volume 0.30 cu. ft.
Ported box volume 0.35 cu. ft.


JL Audio 8W3V3-4 8 inch car subwoofer reviewThis is what you can get if you’re willing to shell out some extra dough. This is one of the best 8 inch subwoofers in JL Audio W3V3 subwoofer series . It’s well capable of delivering big, thumping bass that will shake mirrors and rattle windows.

JL Audio is a brand we haven’t come across very much on our site. However, they have an outstanding reputation for sound quality and power especially when it comes to subwoofers. This 8″ w3 series is no exception.

The JL Audio 8W3V3 subwoofer boasts a sensitivity rating of 83.24 dB and can handle up 250 watts of power (RMS). It can hit as low as a claimed 28Hz and as far up as 250Hz.

This subwoofer incorporates a mineral-filled polypropylene cone supported with nitrile-butylene rubber surround to ensure smooth, precise cone movement at any power level.

Additionally, its exclusive cooling features dissipate heat away from the sub’s internal motor structure for long lasting performance and reduced distortion.

The best thing about this subwoofer is that it can get very loud while remaining to have excellent, distortion-free sound quality. It’s designed to work well in a sealed or ported enclosure.

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