Search  for anything...
Rockville

Rockville W12K9D4 V3 12" 4000-Watt Peak / 1000-Watt RMS Car Subwoofer Dual 4 Ohm DVC Design, Heavy Duty Bass Driver, for Car Audio Systems, 2-Piece

  • Based on 151 reviews
Condition: New
Checking for the best price...
$314.89 Why this price?

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – 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, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

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, Mar 16
Order within 23 hours and 51 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • Package Includes: (2) Rockville W12K9D4 12" 4000W Car Audio Subwoofer Dual 4-Ohm Sub, CEA Compliant
  • Unmatched Power Handling: Each sub delivers 4000W peak, 2000W program, and 1000W RMS. Designed for high-output car audio systems requiring consistent, controlled bass performance.
  • Superior Cooling & Durability: Features dual inner dust caps, reduced pole vent size, improved ventilation, and a Nomex spider for long-term strength during bass-heavy playback.
  • Enhanced Build Quality: Includes a 3" 4-layer aluminum voice coil wound with OFC wire, a double-stacked 190 oz magnet, cast aluminum basket, and cutout diameter of 11.13" with mounting depth of 6.85" for precise installation.
  • Versatile Enclosure Compatibility: Frequency response 33Hz-1.5kHz, XMAX 28mm, optimized for sealed (0.9-1.47 cu ft) or vented (1.8-2.75 cu ft) enclosures to achieve maximum bass output.

Brand: Rockville


Speaker Maximum Output Power: 2000 Watts


Frequency Response: 1.5 KHz


Connectivity Technology: wired


Audio Output Mode: Surround


Input Voltage: 100 Volts


Mounting Type: Car Mount


Material: Aluminum


Model Name: W12K9D4


Speaker Type: Subwoofer


Recommended Uses For Product: car


Compatible Devices: Car Stereo Systems


Subwoofer Diameter: 12 Inches


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 2.0


Color: Black


Included Components: Power Cable, Speaker, User Manual


Item Weight: 64 Pounds


Impedance: 4 Ohms


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 2


Control Method: Voice


Wireless Communication Technology: No Wireless Communication Technology


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 11.13 Inches


Water Resistance Level: Not Water Resistant


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Subwoofer Connectivity Technology: Wired


Specific Uses For Product: PA


Manufacturer: Rockville


Shape: rectangular prism


Set Name: Rockville W12K9D4 12" 8000 Watt Dual 4-Ohm Car Subwoofers


Package Dimensions: 16.93 x 16.1 x 9.88 inches


Item Weight: 64 pounds


Item model number: W12K9D4


Date First Available: March 7, 2022


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.

  • 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.

Similar Products

Top Amazon Reviews

    • Great bang for your buck
Review Image by Virgil s. Virgil s.
Review Image by Virgil s. Virgil s.
Review Image by Virgil s. Virgil s.
Review Image by Virgil s. Virgil s.
Arrived in a timely manner hooked them up to a 1 ohm amp and they hit hard af
Reviewed in the United States on May 16, 2025 by Virgil s. Virgil s.
    • Awesome speakers
These fricken bang running 8000 watts to both of them fricken beautiful
Reviewed in the United States on December 17, 2024 by David b.
    • They nice!
They hit hard!! Decent wieght they look nice i wired them to 1ohm and they bump!! Still in break inn period so will update after a month!
Reviewed in the United States on March 19, 2025 by Victor
    • Nice
I was surprised but they are very good speakers
Reviewed in the United States on November 5, 2024 by Reggie Thomas
    • Banging system
Good quality system base hits hard and got shipped in a good timely fashion earlier than expected. No complaints.
Reviewed in the United States on July 25, 2024 by Stand gang
    • Junk company/seller
Product is ok if you ever get it... selling stuff not in stock and hold your money
Reviewed in the United States on April 20, 2021 by michael carney
    • The best
I've been in car auto for over 25 yrs and these are the best 12s I've ever had in a truck had to use a ported box to stop my window from blowing out or cracking did not think these would hit so hard but the best money can buy!
Reviewed in the United States on August 5, 2023 by Scott Bell
    • Good speaker didn't last long
The speakers are good quality but the bottom part of the speaker came out of the magnet. So now when certain songs play it sounds like a loose wire.
Reviewed in the United States on September 18, 2024 by Amazon Customer

Can't find a product?

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