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JL Audio  8W3v3-4

W3v3 Series 8" 500W Peak Power Handling 4 Ohms, Single Voice Coil Component Car Subwoofer

Item #18627

Condition:   Brand New

Product Highlights

  • W3v3 Series
  • 8" Subwoofer
  • 500W Peak Power
  • 4 Ohms Impedance
  • Single Voice Coil

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$349.99

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  Free 2-Years Warranty Included!
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60 DAYS Price change protection.

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JL Audio 8W3v3-4 W3v3 Series 8" 250W RMS (500W Peak Power Handling) 4 Ohms, Single Voice Coil Component Car Subwoofer


We are a JL Audio authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 8" Single Voice Coil Component Car Subwoofer
  • • Black plastic trim ring (installed)
  • Owner's Manual

 


Why Choose JL Audio 8W3v3-4 Component Car Subwoofer?


JL Audio 8W3v3-4 Component Car Subwoofer Three-Quarter Rear View Facing Left
JL Audio 8W3v3-4 8-Inch Subwoofer Delivers Powerful, Accurate Bass

The JL Audio 8W3v3-4 8-inch subwoofer is engineered to produce deep, accurate bass with outstanding sound quality in both sealed and ported enclosures. Its DMA-optimized motor, mineral-filled polypropylene cone, and durable rubber surround work together to minimize distortion while delivering tight, controlled low-frequency performance for any car audio system.

Compact 8-Inch Car Subwoofer with Flexible Installation

Designed for compact installations, the JL Audio 8W3v3-4 4-ohm subwoofer delivers impressive output while requiring only moderate amplifier power. A removable paintable trim ring and optional steel-mesh grille allow for custom styling, while compatibility with sealed or ported enclosures makes it easy to integrate into trucks, SUVs, and compact vehicles.

JL Audio 8W3v3-4 Component Car Subwoofer Three-Quarter Front Profile View
JL Audio 8W3v3-4 Component Car Subwoofer Three-Quarter Rear View Facing Right
Advanced JL Audio W3v3 Technology for Clean, Reliable Bass

Built with advanced motor and cooling technology, the JL Audio 8W3v3-4 provides exceptional cone control, reduced distortion, and long-lasting reliability. Its compact design fits into smaller enclosures without sacrificing performance, making it an excellent choice for listeners seeking powerful, musical bass and premium sound quality.

 


JL Audio 8W7AE-3 vs 8W3v3-4 vs 8W1v3-4 | Which 8" JL Audio Subwoofer Is Best?


JL Audio 8" Subwoofer Performance Battle
JL Audio 8W7AE-3

JL Audio 8W7AE-3
8" W7AE Series Single 3-Ohm Flagship Subwoofer

BEST PERFORMANCE
  • • 8" Subwoofer
  • • 500 Watts RMS
  • • Single 3-Ohm Voice Coil
  • • Massive 19mm Xmax
  • • Reference Sound Quality
  • • Deepest Bass Extension
  • • Highest Output Capability
  • • Ideal for Premium SQL Systems
JL Audio 8W3v3-4

JL Audio 8W3v3-4
8" W3v3 Series Single 4-Ohm High-Performance Subwoofer

BEST VALUE SQL
  • • 8" Subwoofer
  • • 250 Watts RMS
  • • Single 4-Ohm Voice Coil
  • • Excellent Sound Quality
  • • Compact Enclosure Friendly
  • • Strong Low-End Performance
  • • Great SQL Balance
  • • Excellent Daily Driver
JL Audio 8W1v3-4

JL Audio 8W1v3-4
8" W1v3 Series Single 4-Ohm Sound Quality Subwoofer

BUDGET PICK
  • • 8" Subwoofer
  • • 150 Watts RMS
  • • Single 4-Ohm Voice Coil
  • • Affordable JL Audio Option
  • • Clean & Musical Bass
  • • Easy to Power
  • • Compact Sealed Box Friendly
  • • Perfect for Factory Upgrades

Series Breakdown


ENTRY LEVEL

8W1v3-4

Best For:
Factory radio upgrades, compact enclosures, and moderate power systems.
Pros
  • Affordable
  • Highest sensitivity
  • Shallow mounting depth
  • Excellent sound quality for its price
  • Easy to power
Cons
  • Limited excursion
  • Less low-end output
  • Not designed for high SPL
BEST VALUE

8W3v3-4

Best For:
Daily drivers wanting stronger bass without sacrificing sound quality.
Pros
  • Nearly doubles the output capability of the W1
  • Noticeably deeper bass
  • Excellent balance of SQ & SPL
  • Compact enclosure requirements
  • Outstanding value
Cons
  • Requires more amplifier power
  • Slightly deeper mounting depth
FLAGSHIP

8W7AE-3

Best For:
Audiophiles and enthusiasts seeking reference-level bass performance.
Pros
  • Massive 19 mm Xmax
  • Extremely deep and controlled bass
  • Outstanding transient response
  • Handles twice the power of the W3
  • One of the best-performing 8-inch subwoofers available
Cons
  • Premium price
  • Requires a larger enclosure
  • Deep mounting depth
  • Needs a powerful amplifier

Which One Should You Buy?


If You Want... Recommended Model
Best Budget 8" Subwoofer 8W1v3-4
Best Value Overall 8W3v3-4
Best Sound Quality 8W7AE-3
Deepest Bass 8W7AE-3
Highest Output 8W7AE-3
Easiest Installation 8W1v3-4
Best Daily-Driver Performance 8W3v3-4

Overall Ranking


ENTRY LEVEL

8W1v3-4

Great entry-level performer with clean, musical bass for factory upgrades and compact systems.

BEST VALUE

8W3v3-4

The sweet spot of the lineup, offering the best balance of price, output, and sound quality.

FLAGSHIP

8W7AE-3

JL Audio's flagship 8-inch subwoofer with reference-level sound quality, exceptional excursion, and the deepest bass performance.

 


JL Audio 8W3v3-4 Recommended Amplifiers | Best Monoblock Amp Pairing for Maximum Performance & Clean Bass


JL Audio 8W3v3-4 Amplifier Matching Guide
Best Monoblock Amplifiers for Tight Bass, Excellent Sound Quality & Maximum Reliability
Amplifier Matching Overview
8W3v3-4 Power Rating: 250W RMS
Voice Coil Configuration: Single 4-Ohm
Ideal Amp Range: 150W – 250W RMS @ 4Ω
Goal: Deep, controlled bass with low distortion and excellent sound quality.
Best Setup: Dedicated Class-D monoblock amplifier with clean headroom.
Top Recommended Amplifiers for JL Audio 8W3v3-4
JL Audio RD500/1: Best overall match—delivers approximately 250W RMS at 4Ω with exceptional control, efficiency, and sound quality.
JL Audio JD500/1: Best value option—provides the subwoofer's full rated power with outstanding reliability and clean performance.
Rockford Fosgate R2-500X1: Excellent budget-performance amplifier with strong output and dependable daily performance.
Alpine S2-A60M: Great upgrade choice with extra headroom for future subwoofer upgrades when properly tuned.
Gain & Tuning Recommendations
Gain Setting: Set amplifier gain to produce approximately 250W RMS using a multimeter, oscilloscope, or distortion detector.
Low-Pass Filter (LPF): 70Hz – 90Hz for seamless integration with your front speakers.
Subsonic Filter: 25Hz – 30Hz for ported enclosures; OFF for sealed enclosures.
Bass Boost: OFF or minimal to prevent clipping and preserve sound quality.
Phase Adjustment: Adjust for the strongest bass response at the listening position.
EQ: Begin with a flat EQ and make only small corrections to suit your vehicle.
Enclosure Matching Tips
Sealed Box: Delivers the most accurate, tight, and musical bass response.
Ported Box: Produces greater low-frequency extension and higher overall output.
Power Recommendation: The 8W3v3-4 performs best with a clean 200W–250W RMS signal at 4Ω.
Pro Tip: JL Audio recommends 75–250W RMS for the 8W3v3-4, with its 250W RMS rating representing the optimal balance of output, low distortion, and long-term reliability. Pairing it with a quality 250W RMS monoblock amplifier in a properly sized sealed or ported enclosure unlocks its full SQL (Sound Quality + Loudness) potential.

 


Frequently Asked Questions (FAQ)


  • • Why does my JL Audio 8W3v3-4 sound weak even though it's getting plenty of power?
    The most common cause is using an enclosure that doesn't match JL Audio's recommended internal airspace. A properly sized sealed or ported box will dramatically improve low-frequency output and overall sound quality.
  • • My subwoofer makes a popping or bottoming-out sound during hard bass hits. Is it blown?
    Not necessarily, as this usually happens when the amplifier is clipping or the enclosure allows too much cone movement. Lower the gain, reduce bass boost, and verify your enclosure matches the recommended specifications.
  • • Why does the 8W3v3-4 get hot after playing music for a while?
    It's normal for the motor and voice coil to become warm during extended listening sessions. Excessive heat usually points to amplifier clipping, poor ventilation, or continuous overpowering beyond its 250W RMS rating.
  • • Can I safely run more than 250 watts RMS to the JL Audio 8W3v3-4?
    A clean amplifier rated slightly above 250 watts RMS is generally safer than an underpowered amplifier driven into clipping. However, sustained power well above the rated RMS can eventually overheat and damage the voice coil.
  • • Why is there a scratching noise when I gently press on the cone?
    A scratching sound often indicates that the voice coil is rubbing inside the motor assembly. This usually results from physical damage, overheating, or excessive cone excursion and often requires repair or replacement.
  • • My amplifier goes into protection whenever I turn the bass up. Could the 8W3v3-4 be causing it?
    It could be caused by incorrect wiring or an amplifier that isn't stable at the connected impedance. Double-check your wiring and ensure the amplifier is compatible with the final speaker load.
  • • Why doesn't my subwoofer play very low bass even though it's installed correctly?
    The low-pass crossover or subsonic filter may be set incorrectly on your amplifier or DSP. Adjusting these settings properly can restore deeper bass without changing any hardware.
  • • Can I mount the JL Audio 8W3v3-4 in a free-air or infinite-baffle setup?
    No, this subwoofer is specifically designed to operate inside a properly sized sealed or ported enclosure. Running it without an enclosure will reduce bass performance and increase the risk of over-excursion.
  • • Why do I hear a burning smell from my 8W3v3-4 after a long listening session?
    A slight odor during the initial break-in period can be normal as the adhesives cure with heat. A strong or recurring burning smell usually indicates the voice coil is overheating due to clipping or excessive power.

 

Learn How To Wire Subwoofers


SPECIFICATIONS


  • Diameter : 8 Inch
  • Sensitivity : 83.24 dB
  • Impedance : 4 Ohm
  • Frequency Response : 28-250 Hz
  • Peak Power Handling : 500 Watts
  • Shallow Mount : No Inch
  • Number of Voice Coils : Single
  • Suggested Sealed Box Volume : 0.3 Cubic ft.
  • Suggested Ported Box Volume : 0.35 Cubic ft.
  • Mounting Depth : 4.63 Inches
  • RMS Power Handling : 250 Watts
  • Free Air : Yes

FEATURES


Features:

  • Engineered for Performance: The W3v3 series delivers impressive output, accuracy, and stellar sound quality, ideal for compact sealed or ported enclosures in trucks, cars, or SUVs.
  • Dynamic Motor Analysis (DMA) Optimized Speakers: Proprietary motor, suspension, and cone modeling ensure tight, clean, and articulate bass with ultra-low distortion at all power levels.
  • Polypropylene Cone Technology: Mineral-filled, injection-molded polypropylene cone with rubber surround provides strong, durable bass and long-term reliability. The metallic JL Audio medallion adds a premium aesthetic.
  • No Replacement for Displacement: The 8-inch W3v3 sub moves air efficiently for its size, delivering powerful, accurate bass with moderate amplifier power.
  • Custom Accents: Includes a removable trim ring that can be painted to match your vehicle’s interior. Optional steel-mesh grille inserts (sold separately) enhance protection and style.
  • Powerfully Adaptable: Supports a wide range of amplifiers and vehicle installations, pairing well in sealed or ported enclosures for balanced, high-quality bass.
  • Remarkably Realistic Bass: Designed with advanced motor assembly and cooling features to reduce distortion, maintain cone precision, and ensure long-term durability.
  • Compact and Efficient: Fits in tight spaces without compromising sound quality, ideal for enthusiasts wanting professional-level bass in small enclosures.

 

Specifications:

  • Size: 8-inch
  • Impedance: 4 Ohms
  • Cone Material: Mineral-filled polypropylene
  • Surround Material: Rubber
  • Grille: None included
  • Free-Air Capability: No
  • Dual Voice Coil: No
  • Sensitivity: 83.24 dB at 1 watt
  • Frequency Response: 28 – 250 Hz
  • Max RMS Power Handling: 250 watts
  • Peak Power Handling: 500 watts
  • Top Mount Depth: 4 9/16 inches
  • Cutout Diameter: 7 1/16 inches
  • Frame Width/Length: 8.545 inches
  • Vas (liters): 15.29
  • Fs (Hz): 35.14
  • Qts: 0.467
  • Xmax (mm): 10
  • Ideal Sealed Box Volume: 0.3 cubic feet
  • Minimum Sealed Box Volume: 0.24 cubic feet
  • Maximum Sealed Box Volume: 0.38 cubic feet
  • Ideal Ported Box Volume: 0.35 cubic feet
  • Port Diameter: 2 inches
  • Port Length: 18 inches
  • UPC: 699440921480
  • Weight: 10
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.

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Write a review!
  • I have one of these behind the seat of my pickup truck. I listen to a lot of hard rock and heavy metal, and, both of these types of music have just as much bass as a lot of rap songs do. I LOVE these subs. I am used to 10 and 12 inch subs, so, when I decided to buy one of these, I was sceptical. I was really wrong. These subs hit hard and can really take a beating. I have this teamed up with an MTX 400 watt Terminator amp. I highly recommend these to anyone who has a truck or a small trunk and want an excellent sub.

    Mike W
    3/11/2010

  • I have 2 of these (8W3v3) in a 2004 Trailblazer EXT.. I built my own enclosure which is a simple rectangle box,construsted out of 3/4" MDF with .51-ish cubic ft of sealed air space(Ea chamber).. filler or braces... Thier powered by a 900w Kenwood Mono sub amp.. Not the best I know but will due till funds are right.. Lol THESE THINGS BLEW MY MIND!!!!! They hit SO HARD for 8's!!!!!! People are simply amazed when I show them.... Even my friends that have systems,cant believe that 8's can even MAKE sound like that!!!! I feel and sound like I got a pair of 10's atleast!!! Got a Datsun Z that I was in search of a small sub for and I found it... If my Trailblazer EXT is bumpin with 2 8'S the Z should be WANGIN!!!! Lol I've owned and spent alot on stereos and in my life and finally learned,that QULITY PRODUCTS make a world of difference!!!!! These JL Audio 8W3v3 are DEFENITILLY worth the buy.. If you want nice hard hittin QUALITY sounding bass sub,this is definitiy it!!! The SOUND of the bass is so intoxicating and enjoyable... Im also runnin Orion 6.5"s in all 4 doors running off a 4 ch. Orion 50x4 rms amp so my highs and mids are nice and chrisp also.. The head unit is a JVC 7" in-dash touchscreen dvd player. Except the Kenwood Amp.. Best Buy sale.. ;) Jl will be replacing that soon..

    Shawn S.
    3/17/2010

  • I have a pair of these in a JL box behind the seats in my '03 Ford Lightning. I am running 175RMS to each and they aren't broken in so I keep them low. So far they are as improssive as most 10's and some 12's. I gage them with Usher's OMG and the percieved loudnes compared with a pair of Orion HCCA 10" I ran in my 2005 Ford 500 Limited. That ride had 3600RMS each 10 and werent as punchy as these little JL's, but the JL's wont play as loudly below 30hz. Bad ASS and impressive, but expensive at full retail, manageable here OCS!

    Jerry
    9/22/2012

  • Very impressed! This sub packs a punch with deep, powerful bass.

    Carl B.
    6/12/2024

  • This got some massive bass for an 8 inch. It's small but can really deliver some huge bass if you're into that. I'm planning now to get another one and I'm looking for a JL Audio amp to pair both so I can have more bass in my truck

    George
    5/15/2025
free installation

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