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JL Audio 8W1v3-4

8" 4-ohm subwoofer

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  • JL Audio 8W1v3-4

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  • JL Audio 8W1v3-4

  • JL Audio 8W1v3-4

  • JL Audio 8W1v3-4

  • JL Audio 8W1v3-4

  • JL Audio 8W1v3-4

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Our take on the JL Audio 8W1v3-4

by Bob Bihlmayer
JL Audio

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Legendary JL Audio engineering

When we think of subwoofers, we typically think of big speakers in large enclosures driven by high-wattage amplifiers. But sometimes you need bass in a smaller, more modest version. That's why JL Audio has created the 8W1v3-4 subwoofer, which fits in spaces where most subwoofers fear to tread.

Trickle down technology

This affordable 8" subwoofer incorporates patented features developed by JL Audio for their legendary W7 subs. Special venting keeps the sub running cool for trouble-free performance, while extensive research in cone bonding and motor assembly construction keeps its cone movement linear for precise, dependable output. The cone interlocks with the dust cap for superior rigidity, and a sophisticated suspension system keeps internal parts aligned properly when you're jamming hard.

JL Audio 8W1v3-4 8" Component Subwoofer

At only 3-7/8" deep, this sub will fit in a lot of tight spaces.

Solid bass made for compact boxes

The low-profile 8W1v3-4 sub works best in compact enclosures, so you can put quality bass in smaller and hard-to-fit vehicles. Its shallow mounting depth of 3-7/8" allows it to live in compact environments, and it's been optimized to fit an enclosure with a volume of only 0.35 cubic feet. 

The sub features a mica-filled polypropylene cone and an aluminum dust cap with an embossed JL Audio logo for a look that stands out as much as the sound. The removable, customizable trim ring lets you put a personal touch on your system, and makes optional grille installation a snap. This punchy W1v3 sub works well with moderate power, delivering impressive performance without costing a fortune. Haven't you got a cozy corner somewhere that needs some bumping bass?

To drive this single subwoofer, we recommend a mono amplifier rated between 120 and 225 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

See more info on this item

Highlights:

  • 8" 4-ohm subwoofer
  • mica-filled polypropylene cone with nitrile-butylene rubber surround
  • power range: 50-150 watts RMS
  • peak power handling: 300 watts
  • frequency response: 25-250 Hz
  • sensitivity: 84.8 dB
  • top-mount depth: 3-7/8"
  • sealed box volume: 0.35 cubic feet
  • ported box volume: 0.5 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Size
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8 -inch
Impedance
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4 ohms
Cone Material
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Mica-filled polypropylene
Surround Material
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Rubber
Ideal Sealed Box Volume (cubic feet)
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0.35
Ideal Ported Box Volume (cubic feet)
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0.5
Port diameter (inches)
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2
Port length (inches)
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10
Free-Air
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No
Dual Voice Coil
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No
Sensitivity
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84.8 dB at 1 watt
Frequency Response
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25 - 250 Hz
RMS Power Range (Watts)
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50-150
Peak Power Handling (Watts)
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300
Top Mount Depth (inches)
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3 7/8
Bottom Mount Depth (inches)
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N/A
Cutout Diameter or Length (inches)
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6 15/16
Vas (liters)
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19.26
Fs (Hz)
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35.4
Qts
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0.418
Xmax (millimeters)
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8
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • 8" Single 4-ohm voice coil subwoofer
  • Black plastic trim ring (installed)
  • Owner's manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Enclosure Compatibility

Features

Woofer: The JL Audio W1v3-4 subwoofer features an injection-molded, mica-filled polypropylene cone with an embossed metallic JL Audio logo and a rubber surround for added durability, woofer excursion and bass response.

Dynamic Motor Analysis (DMA): DMA is JL Audio's proprietary method of improving dynamic motor behavior. As a result of DMA optimization, W1v3-4 motors remain linear over a long excursion range, and also maintain a stable fixed magnetic field in the gap over a wide power range. The result is reduced distortion, faithfully reproduced transients, and tight, clean, articulate bass.

Floating Cone Attachment Method (FCAM): JL Audio's patented FCAM technology is an innovative method of bonding the surround/cone assembly to the voice coil/spider assembly. This assembly technique ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.

Vented Reinforcement Collar: The Vented Reinforcement Collar (VRC) is a composite structure that addresses two issues related to reliability:

  • Stress Relief: By reinforcing the critical junction between the cone, voice coil and spider, the VRC greatly reduces failures due to glue breakdown or material weakness. It does this by increasing adhesive contact area and providing stress relief to the spider material at excursion extremes.
  • Air Flow: The VRC also features slots that facilitate air flow directly onto the voice coil windings, thus reducing thermal compression effects and enhancing reliability.

Insert Molded Suspension/Coil/Terminal Sub-Assembly: The W1v3-4 features a unique spider, coil and terminal subassembly, assembled prior to installation in the speaker frame for optimum alignment and glue-joint integrity. This type of assembly ensures precise lead wire length, lead wire entry and exit angles, and coil/spider alignment.

Elevated Frame Cooling System: The elevated frame design of the W1v3-4 delivers cool air through slots directly above the top-plate to the voice coil of the speaker. This not only enhances power handling, but also sound quality by minimizing dynamic parameter shifts and power compression.

Customizable Trim Ring: The woofer comes with a removable ring made of black ABS plastic which can be painted to match the installation theme and create a personalized look. You can purchase an optional grille mesh insert specifically designed to fit into the inner diameter of the trim ring (item number 136SGR831, sold separately).

Enclosure Compatibility

Sealed Enclosure: JL Audio recommends an optimum sealed enclosure volume for the 8W1v3-4 of 0.35 ft³, resulting in a -3dB point of 59.9 Hz.

Ported Enclosure: JL Audio recommends an optimum ported enclosure volume for the 8W1v3-4 of 0.5 ft³. The recommended port is 2" (diameter) x 10" (long), resulting in a tuning frequency of 38 Hz and a -3dB point of 39.1 Hz.

 
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JL Audio 8W1v3-4 Reviews

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4 out of 5

Jeep wrangler

Written By Robbie M., Charlotte, NC on Tuesday, July 15, 2014
 
I installed two of these JL 8s in my 2010 four door Jeep wrangler in a custom fiberglass box and the sound quality was fantastic even while the roof and door were off.
Pros:
Small out of the way but hit hard at the same time due to the quality of the Sub
Cons:
Small
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"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 

1 question already asked

WILL THIS SUB FIT IN THE FACTORY SUBWOOFER BOX 2004 FORD 150 EXTENDED CAB AND CAN I USE FACTORY AMP, ALSO GOING TO UPGRATED FACTORY STEREO W/ SOMETHING LIKE THE KENWOOD DNX570HD CAN I USE FACTORY AMP FOR THE KENWOOD? HAVE ALREADY UP GRATED THE 4 SPEAKERS TO JL 6.5 W/ TWEETERS [ Bret  Jul 27, 2014 ]
1 answer
  • We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Greg Staff  Jul 28, 2014 ]

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For a more in-depth review and enhanced detailed information on the JL Audio 8W1v3-4, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_13692079/JL-Audio-8W1v3-4.html ).