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Rockville

Rockville K5 W12K5S4 1400W Peak 350W RMS 12-Inch Car Audio Subwoofer, 4 Ohm, Deep Bass, High Power Handling, Durable Build, for Car Audio Enthusiasts

  • Based on 108 reviews
Condition: New
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$67.95 Why this price?
Memorial Day Sale · 57% off was $158.99

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Availability: Only 7 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, May 29
Order within 13 hours and 50 minutes
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Style: 12” 4 Ohm


Features

  • DEEP, POWERFUL BASS: Delivers 1400W peak power and 350W RMS for rich, distortion-free low frequencies, ideal for car audio systems demanding high-performance sound.
  • DURABLE 12-INCH DESIGN: Features a high-strength paper cone and reinforced foam surround, built to withstand intense vibrations and provide consistent output.
  • 4-OHM IMPEDANCE VERSATILITY: Optimized for flexible wiring configurations, ensuring compatibility with a wide range of car amplifiers for customized setups.
  • CEA-RATED PERFORMANCE: Certified 350W RMS power handling ensures reliable, high-quality audio output, perfect for music genres like hip-hop, EDM, and rock.
  • EASY INSTALLATION: Includes a single 4-ohm voice coil and chrome-plated terminals for quick, secure connections, making it ideal for DIY car audio upgrades.

Brand: Rockville


Speaker Maximum Output Power: 1400 Watts


Frequency Response: 1.5 KHz


Connectivity Technology: Wired


Audio Output Mode: Surround


Mounting Type: Car Mount


Model Name: W12K5S4


Speaker Type: Subwoofer


Recommended Uses For Product: car


Compatible Devices: Laptop, MP3 Player, Smartphone


Subwoofer Diameter: 12 Inches


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 2.1


Color: Black


Included Components: Subwoofer


Product Dimensions: 13"D x 8"W x 13"H


Item Weight: 10.1 Pounds


Impedance: 4 Ohm


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 1


Control Method: Voice


Wireless Communication Technology: No Wireless Communication Technology


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 12 Inches


Vehicle Service Type: Car


Customer Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Subwoofer Connectivity Technology: Wired


Includes MP3 player?: No


UPC: 819216024652


Style: 12” 4 Ohm


Manufacturer: Rockville


Shape: Rectangular Prism


Set Name: K5


Item Weight: 10.1 pounds


Item model number: W12K5S4


Date First Available: July 13, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 29

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Rockville rocks!
Style: 12” 2 Ohm
Review Image by Jay Jay
Just put 2 of these in my 98 , worth it!!!!!!
Reviewed in the United States on May 11, 2025 by Jay Jay
    • Great deal!!
Style: 12” 4 Ohm
I purchased the subwoofer as a replacement for one that I broke when I purchased my set of two.. and let me tell you this one is almost stronger than my last one it just may be stronger but it's very durable and easy to install I can almost run just a simple for a loan by itself with the amount of power it puts out love to hear my trunk rattling ... show more
Reviewed in the United States on July 26, 2024 by Seth
    • Big improvement
Style: 12” 4 Ohm
I have a 12-in Rockville base tube and the subwoofer in it just did not sound all that great this was a big improvement over the one that the tube came with but it is a very tight fit in the tube and I have to use some persuasion to fit it in there other than that though I am happy with this subwoofer ... show more
Reviewed in the United States on December 15, 2024 by STB48
    • Rockville always delivers
Style: 12” 2 Ohm
Great speaker with a great sound. Customer service is exactly how u would hope it would be
Reviewed in the United States on July 5, 2024 by James from Roswell
    • Great for the price!!
Style: 12” 2 Ohm
So to make a long story short the 12 inch 2 ohm 1400watt sub is awesome especially for the price....I had some boss 12 inch 4 ohm 1400watt that broke on me(it was my fault) I thought they were pretty good for the price but these speakers are noticeably better in loudness and bass quality the boss sub is good no doubt but these are just better ... show more
Reviewed in the United States on March 8, 2021 by Candy B.
    • Blow easy
Style: 12” 2 Ohm
This was the second rockville 12 I bought within a year. Blew them both. Using rockville amp included in the kit I originally bought. Was supposed to match the speaker. Don't waste your money
Reviewed in the United States on November 23, 2022 by 2fst4u
    • If u want ur car to b loud af
Style: 12” 4 Ohm
Omg loud af n stupid my bf got them n they just loud af for no reason I won’t buy it but he love it. He had to get a new one cause it blow or something
Reviewed in the United States on August 3, 2021 by Keria
    • Love these speakers
Style: 12” 4 Ohm
These speakers are a great value. Very happy with this purchase. Loud clear with good dynamics.
Reviewed in the United States on February 21, 2022 by Geoff Squires

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