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Rockville

Rockville W15K9D2 5000W Peak 15" Car Audio Subwoofer, Dual 2-Ohm, Ultra-Stiff Paper Cone, 30mm Xmax, 190oz Magnet, for Car Audio Systems & Bass Enthusiasts

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Availability: In Stock.
Fulfilled by Audiosavings
Arrives Monday, Mar 16
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Style: 15” K9 Series 2 Ohm


Features

  • POWERFUL BASS OUTPUT: Handles 5000W peak, 2500W program, and 1250W RMS (CEA-rated) for thunderous, distortion-free bass in car audio systems
  • DUAL 2-OHM VOICE COILS: Flexible wiring options allow compatibility with a wide range of amplifiers for custom setups
  • ULTRA-STIFF PAPER CONE: Non-pressed black paper cone with red stitching and thick foam surround ensures durability and clean, impactful bass
  • HIGH-EXCURSION DESIGN: 30mm XMAX and vented T-yoke deliver deep, dynamic low frequencies with excellent heat dissipation
  • HEAVY-DUTY BUILD: Double stacked 190 oz magnet, cast aluminum basket, and chrome-plated terminals provide strength, reliability, and long-lasting performance

Description

The Rockville W15K9D2 15" K9 Series car subwoofer is built for car audio enthusiasts who demand powerful, competition-grade bass. Delivering 5000W peak, 2500W program, and 1250W RMS (CEA-rated), this subwoofer produces deep, distortion-free low end that transforms your system. Featuring an ultra-stiff non-pressed black paper cone with red stitching, a thick foam surround, and a heavy-duty cast aluminum basket, the W15K9D2 is engineered to withstand extreme power while maintaining accurate sound reproduction. Its dual 2-ohm voice coils provide flexible wiring options for seamless integration with your amplifier. The high-excursion design with 30mm XMAX and vented T-yoke enhances heat dissipation and ensures deep, powerful bass output. A double stacked 190 oz magnet drives strong performance, while its sensitivity of 83dB and frequency response of 33 Hz – 1.5 kHz deliver tight, controlled lows across a wide range of music. With an 8.23-inch mounting depth, the W15K9D2 fits most custom enclosures, making it ideal for competitive setups or daily driving. Perfect for delivering heart-pounding bass across genres, this subwoofer brings unmatched depth and impact to your car audio system.

Brand: Rockville


Speaker Maximum Output Power: 5000 Watts


Frequency Response: 1500 KHz


Connectivity Technology: wired


Audio Output Mode: Surround


Mounting Type: Car Mount


Material: Paper


Model Name: W15K9D2


Speaker Type: Subwoofer


Special Feature: High BL Magnetic Motor Gap


Recommended Uses For Product: car


Compatible Devices: Smartphone, Tablet, Laptop, Desktop, Car Stereos, Infotainment Systems


Subwoofer Diameter: 15 Inches


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 2.0


Color: Black


Included Components: Subwoofer


Product Dimensions: 12.6"D x 17.9"W x 18.1"H


Item Weight: 30.25 Pounds


Impedance: 2 Ohms


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 56


Control Method: Voice


Speaker Size: 15 Inches


Power Source: Corded Electric


Signal-to-Noise Ratio: 83 dB


Woofer Diameter: 15 Inches


Audio Driver Type: Dynamic Driver


Audio Driver Size: 15 Inches


Subwoofer Connectivity Technology: Wired


Number Of Circuits: 1


Specific Uses For Product: car


UPC: 819216020722


Style: 15” K9 Series 2 Ohm


Global Trade Identification Number: 22


Manufacturer: Rockville


Shape: Rectangular Prism


Item Weight: 30.2 pounds


Item model number: W15K9D2


Is Discontinued By Manufacturer: No


Date First Available: March 21, 2018


Department: vehicle-subwoofers


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great product with a even better price.
Style: 15” K9 Series 2 Ohm
I purchased a K915D2. This is a great sub for the price and has not failed to impress me yet. Sound is strong and tight bass response. I'm running it in a 2.6 cubic foot sealed enclosure and it pounds. My only complaint is there was some assembly issues with excess glue on the dust cap and cone. This in no way affects the sound just gets my OCD going lol. All in all this is an amazing buy for what you get. ... show more
Reviewed in the United States on March 16, 2019 by Andrew Keenan
    • Great sub
Style: 15” K9 Series 4 Ohm
Does what it says!
Reviewed in the United States on July 23, 2025 by Shopper all times
    • Great value, just the right boom
Style: 15” K9 Series 4 Ohm
I bought this 15 inch sub to replace what is now two different blown subs. Each of the previous ones had slightly different musical qualities to them and I had had the first one for over 25 years, so was really accustomed to how it sounded. This sub impresses in all the right ways. I have it powered with a Rockford Fosgate amp that produces 300W RMS @ 2ohm which is more than enough to get this bumping hard. I studied a lot of reviews before buying. All of them pointed to the quality materials and construction but warned about running these too hard. My setup appears to be a good sweet spot. Running it on the lower power end like I am easily explains the weaker hit at the extremes of the dynamic range, which could likely be improved with a tuned enclosure but I have no complaints and dont intend to change anything. I have it in a sealed box and all in all this will provide the deep boom you want out of a 15 inch sub, at an affordable price. I can easily overpower the rest of my system with bass notes if I turn this up. And I enjoy the sound it provides in all types of music from classical (the cannons in the 1812 overture) to the old western classics of Hank Sr and the boomy rap rock/metal I love. And it's shaking the heck out of my F150 super cab! I might need to track down and try to dampen out a few new rattles! ... show more
Reviewed in the United States on September 15, 2019 by Amazon Customer
    • Comparable to my Skar Audio EVL-15" Sub!?!
Style: 15” K9 Series 2 Ohm
Review Image by Jonathan R Jonathan R
I've been on a Rockville Binge ever since I bought their dB45 4-channel amplifier a few months back and loved how it performed! I had recently built a new sub box for my car to drop in a Skar Audio EVL-15 2-ohm DVC sub and since that also recommends 1250 RMS to push, I ended up replacing my old Kenwood amp with a Rockville RDX-M4 1500 RMS x 1 ohm amplifier. With that being said, I've been playing the heck out of that sub/amp for a month now and I'm extremely happy with how it sounds. So... I needed a second 15" sub for my other car... and I figured, why not the Rockville K9 15" 2-ohm DVC? :) I've broke it in for the most part over the past week playing it in my garage sub box (not nearly as low of tuning as my car's box) and decided to swap out the Skar for the Rockville and play the same thumping music I'd been listening to to compare apples to apples. My box is 4.25 cu ft after speaker/port displacement and two 4" x 17" aeroports tuned to around 28hz. Very happy to say that it's nearly identical! I believe the Skar still does hit a bit lower/harder than the K9 still but compared to every other sub I've owned, these 2 are in a class of their own. They both punch pretty well for 15's but that low frequency rumble is amazing on both of these subs! Extremely satisfied with this sub - especially at this price! The resistance I get on my multimeter shows the Skar between 0.9 ohms and 1.1 ohms and the Rockville is between 1.1 ohm and 1.4 ohms so there's probably a little power difference between the 2 in what my amplifier is pushing to them but it's pretty close (hopefully this is useful to anyone reading). I can tell a difference when the Skar is in my smaller/higher tuned sub box for sure - it's still more powerful than this Rockville K9, but again, for the price it's pretty darn close! Anyways, I'm a fan of the Rockville products and will definitely be buying more of their stuff down the road! Also utilized their tech support and am happy to report they are very responsive and willing to help! ... show more
Reviewed in the United States on March 4, 2019 by Jonathan R Jonathan R
    • W15K9D2 15" Is this better then an Alpine Type X ?????
Style: 15” K9 Series 2 Ohm
Review Image by Russell Russell
Review Image by Russell Russell
Review Image by Russell Russell
Review Image by Russell Russell
Review Image by Russell Russell
Review Image by Russell Russell
I did a test on coils ( With a true RMS meter each one reads 2.1 Ohm each ) I had this hooked up to an behringer 6000 Watt 2 channel amp ( the amp is about 2600 watts each channel ) VERY HAPPY WITH SOUND COMING OUT OF THIS THING!!!!!! It is mounted in a enclosed 1.9 cubit ft box i did a test with a sound generator Hi Low frequency test and it did good in my opinion at about 25 HTZ it shook my living room pretty good ( WAY MORE THEN MY Alpine TYPE X ) this thing is LOUD and pounds very hard (SORRY ABOUT PICTURES I PUT THEM IN CORRECT BUT THEY WENT SIDE WAYS) i found that the bass is much tighter then my type X ( witch to me has a more true sound then my type X ) I HATE A MUDDY SOUNDING SPEAKER !! The high note hits good from about 70 HTZ and down to about 25 HTZ ( if you had a biger box like 3 cubit ft ) it would be louder on low end ) I chose a smaller box because of space I DON'T HAVE... I hoped this helps you with your decision. THIS SPEAKER IS WELL WELL WELL WORTH IT !!!!!!!!! ... show more
Reviewed in the United States on February 25, 2019 by Russell Russell
    • Would love a replacement
Style: 15” K9 Series 4 Ohm
Review Image by Gussie Nichols Gussie Nichols
Review Image by Gussie Nichols Gussie Nichols
Review Image by Gussie Nichols Gussie Nichols
I love Rockville subwoofers but never bought one with missing parts it said like new n it’s rusty inside the voice coils I never used it
Reviewed in the United States on October 26, 2024 by Gussie Nichols Gussie Nichols
    • Power
Style: 15” K9 Series 4 Ohm
It’s good for the price but I’m sure the watt rating is exaggerated. I bought 2 and I have a 5000 2 channel cerwin Vega amp with each channel wired to each sub. Amp gain is at 75%. If I play them for a while, I can smell the coils burning. I haven’t blown them yet but I am searching for better replacement subs before I do. ... show more
Reviewed in the United States on October 7, 2024 by R
    • Home made speaker. Sound amazing.
Style: 15” K9 Series 4 Ohm
Review Image by Waldemar Kostek Waldemar Kostek
Review Image by Waldemar Kostek Waldemar Kostek
Excellent subwoofer.
Reviewed in the United States on February 27, 2025 by Waldemar Kostek Waldemar Kostek

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