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JBL :: W12GTi MkII :: $395.99


Item# 20006

12" 4000 Watt Dual 6-Ohm Subwoofer

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The JBL® W12GTi MkII 12-inch (300mm) subwoofer is nothing short of amazing. Using technology from JBL’s professional audio division, where subwoofers have to fill large venues like stadiums and movie theaters with incredible bass, this subwoofer takes a completely new approach to moving air in a car. It all starts around the patented Differential Drive® Design (US patent no 5,748,760 and other patents pending) motor, which uses light and agile opposed 3-inch (76-millimeter) voice coils in a neodymium magnetic gap to provide completely linear control of cone excursion all the way up to Xmax. Symmetrical Field Geometry™ design ensures linear cone travel and low distortion at virtually any output level.

Surrounding the proprietary motor design are other high-tech materials, including a cast-aluminum frame, Kevlar® cone, a nitrile butadiene rubber (NBR) one-piece surround, gold-plated speaker-terminal binding posts, progressive spider and vented pole piece.

This subwoofer handles an amazing 4,000 watts peak power (700 watts RMS), and all of its parts work in harmony to cool the voice coils for maximum output. This sub is one of the best car subwoofers that money can buy. It’s the 12-inch reference standard. Nothing else even comes close.



• 12" Dual 6 Ohm GTI Competition Level Subwoofer

• Power Handling: Peak: 4000 watts/ RMS: 700 watts

• 3" Voice coil

• Frequency response: 18-1000 Hz

• Sensitivity: 91 dB

Product Highlights:

  • 12" Dual 6 Ohm GTI Competition Level Subwoofer
  • Power Handling:
  • Peak: 4000 watts
  • RMS: 700 watts
  • Impedance: Dual 6 ohm
  • Frequency response: 18-1000 Hz
  • Sensitivity: 91 dB
  • Kevlar paper cone woofer
  • Nitrile-butylene surround
  • Differential Drive Design motor
  • Symmetrical field geometry ensure linear cone travel and low distortion
  • 3" Voice coil



  • 1 W12GTi MkII subwoofer
  • 8 10/24 machine screws
  • 8 T-nuts
  • Enclosure design sheet
  • Owner’s manual
  • Subwoofers are usually sold as a single unit unless otherwise noted.
  • UPC: 050036119061
  • Weight: 41
*Warranty: 1 Year warranty.
1 Year warranty from implies that repairs must be returned to, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.

Do you own this product?  Write a review

   J From Boise
I have one 15 w15gti in a ported box sealed facing forward. I have an alpime pdx-m12 running to it. It handles the power well and tbe sound quality is amazing as well as powerful lows. Best sound quality setup I have owned and very loud as well. Nearly breaking 140 on burst and 138.5 on music.

   tye From miller
these subs are the best subs that I've ever had out of the fifteen years that I have been installing subs in trucks and cars. They perform as well as any other subwoofer of it's type, but much more. for the money that you spend on these subs it is worth it.

   Eric From Vermont
These subs are incredible, purchased two at full retail from local dealer, he installed them after a Best Buy install(not recommended)and they hit hard. In a 4 door sedan, trunk car I hit a max of 149.9 DB with a matts D3500.1 amp which I have been abusing for over a year now. Better than any other sub I have heard except the matts juggernauts.