Search  for anything...
Rockville

Rockville W10K9D4 V3 10" K9 3200W Peak/800W RMS Car Subwoofer DVC 4-Ohm

  • Based on 835 reviews
Condition: New
Checking for the best price...
$119.95 Why this price?
Labor Day Deal · 8% off was $129.99

Buy Now, Pay Later

As low as $19.99 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Audiosavings
Arrives Monday, Sep 14
Order within 12 hours and 34 seconds
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Speaker Size: 10.0 Inches


Impedance: 4.0 Ohms


Features

  • POWERFUL PERFORMANCE: Handles 3200W peak/800W RMS with deep, accurate bass response, delivering rich low frequencies for hip-hop, EDM, and rock.
  • PREMIUM COMPONENTS: Features a 3" 4-layer black aluminum OFC voice coil (USA-made) and double stacked 185 oz magnet for strength and reliability.
  • ENHANCED COOLING: Inner dustcap, vented pole, and coil spacer improve heat dissipation, keeping performance stable during long bass-heavy sessions.
  • RUGGED DESIGN: Ultra-stiff non-pressed paper cone, Punisher series polypropylene dustcap, Nomex spider, and white stitching ensure long-lasting durability.
  • OPTIMAL FIT: 6.5" mounting depth, 9.37" cutout diameter, custom mounting gasket, sealed box volume 0.55-0.95 cu ft, ported 1.2-1.8 cu ft, sensitivity 85dB.

Description

Description: The Rockville K9 series has been our best-selling series of subs and it just got even better! Say hello to the K9 V3. This sub is a game changer. 1. The Dust cap was upgraded to the same one we use in our Punisher series. It is top of the line. We figured it just cost us a couple dollars extra, so why not throw on the best Dust cap. 2. We added an inner dust cap that stops heat from building up in the voice coil. We also made our pole vent smaller. The combination of these 2 changes keeps the voice coil significantly cooler when you are playing bass heavy songs or test tones. 3. We added a voice coil spacer that vastly improves the performance. 4. The cone has a smooth finish that allows the dust cap to be glued on more securely. Features: _________________________________________________________________________________________________________________________________________________________________ Detailed Info:

Brand: Rockville


Speaker Maximum Output Power: 3200 watts


Frequency Response: 1.5 KHz


Connectivity Technology: wired


Audio Output Mode: Surround


Audio Output Mode: Surround


Mounting Type: Car Mount


Enclosure Material: Non-Pressed Paper, Ultra-stiff Polypropylene


Speaker Type: Subwoofer


Additional Features: Improved Performance and Cooling


Antenna Location: car


Subwoofer Diameter: 10 inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Voice


Speaker Size: 10 inches


Woofer Diameter: 10 inches


Specific Uses For Product: Car audio


Controller Type: Voice control


Speaker Maximum Output Power: 3200 watts


Input Voltage: 12 volts


Unit Count: 1 Count


Item Dimensions D x W x H: 13.5"D x 13.5"W x 12.3"H


Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Laptop


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Brand: Rockville


Model Number: W10K9D4


Model Name: W10K9D4


Built-In Media: Subwoofer


Warranty Description: 1 YEAR


Number of Items: 143


Customer Package Type: FFP


Series Number: 3


UPC: 819216020555


Global Trade Identification Number: 55


Manufacturer: Rockville


Item Type Name: Rockville W10K9D4 10" 3200w Peak Car Audio Subwoofer Dual 4-Ohm Sub 800w RMS CEA Rated


Frequency Response: 1.5 KHz


Number of Audio Channels: 2.1


Impedance: 4 ohm


Connectivity Technology: wired


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Audio Driver Type: Dynamic Driver


Audio Driver Size: 10 inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 14

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Very very impressed ...and fast shipping 👍🏼👍🏼
Speaker Size: 10.0 Inches Impedance: 4.0 Ohms
I have too say am very impressed!! I’ve had in the pass 2 kickers L7 also 2 12 JL ‘s I’ve own plenty of 12 inch speakers with plenty of cheater amps I’ve Ben around the block as I’ve right now I still have a few cheater amps put away i still have 1 kicker ZR1000 and a ZR600 also a few ADS amps ..I own a Audi b8.5 I didn’t want to put 2 12’s in my trunk this time I wanted to upgrade the factory 10 inch subwoofer and a separate amp just for the 10 inch sub.. so I bought this 10 inch and I installed it where the factory sub was on the back top wow it almost didn’t fit I didn’t realize it was tall but it did.. I also sealed everything back there I used my alpine cheater amp as it’s only one Chanel And small amp it’s pushing 700 watts perfect for the speaker..the speaker i got was 10K9D4 4ohms wired to 2 ohms . this set up sounds nice it hits very low I have to say am impressed how it sounds.. some of my friends that have 2 12’s in there trunk couldn’t believe I was pushing 1 10 inch.. anyone reading this that don’t know to much about stereo systems keep in mind that a good brand amp comes a long way and keep in mind I have 4 cheater amps one of my amps is a true rms 1000 watt and I didn’t install that because it’s only 1 10 inch subwoofer and the most I’ll give this speaker is 600 to 700 watts Without blowing the speaker and trust me that’s plenty for one 10 inch this setup hits good in every music I throw at it ..I never owned 10 inch speakers I always went with 2 12inch ..now if I bought 2 of these speakers then I would of used my ZR600 cheater amp I still wouldn’t use the ZR1000 I would only use my ZR1000 if I had two 12’s my point is u don’t need to use a kicker ZR1000 cheater amp on 1 10 inch subwoofer u will blow this speaker ..I don’t understand y companies say 3000 watts on a speaker when true rms is 600 watts it confuses the newbies.. hope this helps someone That doesn’t know to much ..agin for the price of this speaker u can beat it ..I went with speaker because I didn’t want a box in my trunk o I forgot to mention I had a 10 inch kicker 8 ohm speaker with the factor amp before I installed my alpine cheater amp and this monster subwoofer ..5 stars for this speaker good price and well built speaker and very very fast shipping Update 2021 I ended up buying a second one these speakers with a good amp pounds I only had 1 at first I replaced the factory 10 inch to this speaker and I sounds like I have 2 12 inch subs in my car every one that hears it can’t believe the setup I have it hits nice I bought a nother one that’s how good these speakers are I have no complaint I can’t believe how well made these speakers are for the price . And the package is very well packaged for delivery.. ... show more
Reviewed in the United States on May 20, 2020 by Kiko33
    • Ready for competition
Speaker Size: 12.0 Inches Impedance: 4.0 Ohms
Sounds better than expected.not only you hear the bass but feel it too. Have a high powered amp,use a pair of these speakers and feel the power.
Reviewed in the United States on July 25, 2026 by pont fiero
    • great for what I bought them for
Speaker Size: 10.0 Inches Impedance: 4.0 Ohms
I mounted this subwoofer in a waterproof ported enclosure so I can remove it out of my boat. I have always wanted a great sound in my boat, this definitely hit the bullseye. I did the enclosure because I do not always need the subwoofer in my boat so I can remove it when I don't need it. I was worried this thing wouldn't sound that great.......I was sooooo wrong this thing bumps like no bodies business. I hooked it up to a Rockville RXM-S6 amp and this thing pushes it great and I have other channels for the rest of my speakers. You guys have my vote and so far many of my friends who have heard the system will become customers as well. My head unit is the Rockville RGHR2 love the set up. I have a set of 8" rockville marine speakers and 2 sets of 6.5" polks. great sound for the money. GET YA'LL SOME!! ... show more
Reviewed in the United States on April 24, 2023 by Jeffery scarbrough
    • Awesome Subs
Speaker Size: 8.0 Inches Impedance: 4.0 Ohms
Review Image by Coco
Review Image by Coco
The Rockville subwoofers are my pick for sound and power handling. My X8 keep popping tinsel leads. But still great X8 sub repairing it for a final third time. Went with the K9-8 to see if I can poke fun at my X8 history ....lol. The two 10 inch I picked up in February 2019. The 8 inch I bought in October 2019. The bottom two are nice for heavy excursion purposes only. Not bad for the price that I purchased them for. However, I had to repair one of the coils that was bad myself because I believe it had bottomed out. I believe that it was never correctly aligned from the manufacturer. But, it has been hanging hard now for over a year since I repaired it. So much so that it's twin coil is weaker and it sucks in on high pressures. Already purchased the materials and just have to tear it down and rebuild it. It's all being pushed by a hearty and healthy 2500 watts with no problems!!!! Hope you enjoyed my review on your subs and my pics. ... show more
Reviewed in the United States on November 2, 2019 by Coco
    • Great value, just the right boom
Speaker Size: 15.0 Inches Impedance: 4.0 Ohms
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
    • Bass is not an issue
Speaker Size: 8.0 Inches Impedance: 4.0 Ohms
Best 8" subwoofer Can handle bass and performance
Reviewed in the United States on May 5, 2026 by Homero
    • BUMPS and Jiggles around Nicely!
Speaker Size: 10.0 Inches Impedance: 4.0 Ohms
Bought the 10" K9D4 3200 w max sub. and have it with a MB Quartz 1500 watt mono amp. Bumps lovely but sometimes depending on the song it will clip the amp. So I have to pull over, pop the trunk and reset the amp in the middle of traffic ( and look like a cornball ) then lower the volume a notch or two depending if the song has long deep bass on it.....then I got to keep it on 22 volume level, can't roll it up to 25 where I like it. So all the mirror shake and rattle and sometimes the trunk just pops open in the middle of the freeway going 90mph because of the banging of the dual K9 box. Love it! Got to get me a MB Quartz 2000 watt amp to try that set up. Maybe no clipping there. I just like the bass control level all the way up. I'm an all balls to the wall kind-a-guy. Rockville amps are too expensive right now for me but maybe by the end of the year Ol' Saint Nick can hook it up! I guess depends if I'm mistah Nice guy Aah! and grease him with a box of Chips-a-hoy....that fat old bearded guy HoHoHo! ... show more
Reviewed in the United States on March 3, 2023 by E-man
    • Power
Speaker Size: 15.0 Inches Impedance: 4.0 Ohms
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

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...