Top Rated 15 inch 5000-watt DVC Subwoofer

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Completely rethinking how to create great bass from a 15" subwoofer.

The JBL® W15GTi MkII 15-inch (380-millimeter) 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, nitrile butadiene rubber (NBR) one-piece surround, gold-plated speaker-terminal binding posts, progressive spider and vented polepiece. This subwoofer handles an amazing 5000 watts peak power (800 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 15-inch reference standard. Nothing else even comes close.


General Specifications

Series Gti
Size 15

Audio Specifications

Power Handling (Peak) 5000W
Nominal Impedance 3 or 12 ohms
Peak Power 5000W
Sensitivity (2.83V@1m) 92dB
Frequency Response (-3dB) 16Hz – 1kHz
Power Handling (RMS) 800W


External Diameter (in) 15-1/4
Mounting Depth (mm) 260
Mounting Depth (in) 10-1/4
Mounting Cutout Diameter (in) 13-7/8
  • 1 W15GTi MkII subwoofer
  • 8 10/24 machine screws
  • 8 T-nuts
  • Enclosure design sheet
  • Owner’s manual

Manuals & Downloads

The latest owner's manuals, quick start guides, and documents.

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W15GTi MkII is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Perfection! hWe were concerned about going with such a large driver but we installed the subwoofer with bananaplugs so that when we need the cargo space its very simple to remove the sub for shopping trips, etc....but we have only needed to do this one time since the sound quality improved SO much with this addition. There are so many cheaper woofers to choose from but this one is worth the extra expenditure. Cannot recommend it enough. All genres of music sounds so much better from classical symphony and rock to jazz and acoustic sounds. We plan to replace our amplifier next currently using a 400rms creston amp and it does the job very well but it is obvious that more electricity will improve output. I should confess that I am and always have been a fan of JBL. We still use a pair of L100, L300s, and 4345s and a pair of mint Olympus S8R. Just can't go wrong with this brand.
Date published: 2014-01-23
Rated 5 out of 5 by from 100% Perfect Perfection is the key in this subwoofer. loud, crisp, accurate frequency response, style, power handling. This is an advanced jbl speaker that has taken almost 4 years of making to make this subwoofer as great sounding as it is. This sub sounds great in any car, and can handle lots of power. HIGHLY RECOMMENDED compared to anything. And though you may pay a little more for quality, it is not overpriced. GREAT JOB JBL!
Date published: 2012-04-09
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The shape and dimensions of the wooden box to produce the best sound way and put it into the car trunk you be heading up or be bound in the back of the rear couch

Asked by: Semo
It is impossible to give these dimensions as we don't know where you will be putting it. So the shape or size must be decided by you. Here's a way to calculate the sides of an enclosure. One cubic foot is 1728 cubic inches. Let's say you want to build a 6.5 cubic foot box. Convert 6.5 cubic feet to cubic inches by multiplying 6.5 times 1728, which equals 11232 cubic inches. The area of a rectangle can be calculated by the formula Length x Width x Height = Area. So, pick two sides that you would like to come close to. Lets say a height of 22 inches and a depth of 20 inches. I'll pick 24 inches as the width to start. • 20 x 22 x 24 = 10560 - too small • 20 x 22 x 26 = 11440 - too large • 20 x 22 x 25.5 = 11220 - CLOSE ENOUGH • So, your internal dimensions would be 22" High, 20" Deep and 25.5" long.
Answered by: Jaycob at CustomerService
Date published: 2017-12-02

What hertz should the box be

Asked by: Kevin tang
A customer support representative will get in touch with regarding your concern.
Answered by: Memen at Customer Service
Date published: 2017-12-02

What encloser is best suited for this sub and tunes at how many hertz

Asked by: Kevin tang
A customer support representative will get in touch with regarding your concern.
Answered by: Memen at Customer Service
Date published: 2017-12-02
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