JL Audio 8W1v3-4

8" 4-ohm subwoofer

Item #: 13692079

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3 Reviews | 1 question - 1 answer

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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.

Product 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

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.

Hands-on 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

Product Research

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.

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.

JL Audio 8W1v3-4 Reviews

Average Customer Review:

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very pleased

Written By Scott R, California on Saturday, November 29, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I bought this subwoofer to replace the blown stock subwoofer in my '99 Ford Expedition Mach system. The sound quality is hands down better than the stock speaker. The speaker is playing lows that the stock speaker could not produce.

For those wanting to purchase this for the same application, read on: Even though this is a relatively shallow speaker, it is still just a little deep for the stock enclosure. I had to modify the enclosure by softening the area that the old subwoofer was bolted through the magnet with a heat gun and push it back a half inch. I had measured the stock enclosure prior to ordering and knew this would needed. As one would expect, the bolt pattern is not exact, so you will need to drill new holes.

Pros: Awesome replacement for a stock subwoofer.

Great small sub (fits Focus SVT)

Written By DDriver, California on Tuesday, November 18, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Great narrow compact sub. It was a replacement for a factory sub on my Focus SVT 2002. Complete easy swap. The factory amp can push this small bad boy. Sounds better than stock subwoofer

Pros: Good punch for a very small package perfectly fits into factory box of focus mk1 (SVT audiophile package), except drilled wholes are not aligned absolutely perfectly.

Jeep wrangler

Written By Robbie M., Charlotte, NC on Tuesday, July 15, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

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

Get everything you’ll need to enjoy your new JL Audio 8W1v3-4

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
Grilles protect your speakers and give your installation a polished look.
The right tools will help keep your installation simple and clean.
Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

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Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

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Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

Pair of sealed 8" wedge-style enclosures (Model BB82W)

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T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

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Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

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Dynamat Xtreme Trunk Kit

Dynamat Xtreme Trunk Kit

5 sheets, 20 square feet

Item #: 15419405

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Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

Triple package — 3 sheets, 12 square feet (Model #10612)

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Dynamat Xtreme Wedge Pack

Dynamat Xtreme Wedge Pack

1 sheet, 4 square feet

Item #: 15410425

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Dynamat Dynaliner

Dynamat Dynaliner

One 54" x 32" sheet (1/8" thick)

Item #: 15411101

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Dynamat 19100

Dynamat 19100

License Frame Kit

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JL Audio SGR-8W3v3/W1v2

JL Audio SGR-8W3v3/W1v2

Grille for 8" W3v3 and W1v2 subwoofers

Item #: 136SGR831

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Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

Item #: 042DM4533

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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 3 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR3NGL

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

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Item #: 126CR6NGL

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Autosound 2000 Disc One

Autosound 2000 Disc One

Low Frequency Test CD (Disc One)

Item #: 503CD101

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Polyester Fiber Stuffing

Polyester Fiber Stuffing

Make your subwoofer think it's in a bigger box (1-pound pack)

Item #: 027808

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Rubber Feet

Rubber Feet

Item #: 125F1692

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Corner Protectors

Corner Protectors

Item #: 1251536

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Springback Handle

Springback Handle

Item #: 125H1051K

(2)

Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCRB

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Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCSB

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Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCRS

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Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCSS

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Metra Box Carpet

Metra Box Carpet

Carpet roll (54" x 5 yards) — available in 3 colors (Black)

Item #: 120TL3015

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Metra HWP-0001

Metra HWP-0001

10 black pan head screws and 10 speed clips

Item #: 120HWP0001

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InstallCard: Subwoofer

InstallCard: Subwoofer

Prepaid installation card — for one component subwoofer or non-powered subwoofer enclosure

Item #: 597421037

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1 question already asked

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  Jul 28, 2014 ]  Staff