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Rockville

Rockville W8K9D4 2000W Peak 8-Inch Car Audio Subwoofer Dual 4-Ohm, High-Power Output, Durable Build, Deep Bass, for Car Audio Enthusiasts

  • Based on 173 reviews
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, Jun 21
Order within 21 hours and 59 minutes
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Style: 8” K9 Series 4 Ohm


Features

  • HIGH-POWER PERFORMANCE:- Delivers 2000W peak power and 500W RMS for deep, resonant bass. Dual 4-ohm voice coils ensure flexible wiring options for optimal amplifier compatibility, ideal for car audio systems
  • DURABLE CONSTRUCTION:- Features a cast aluminum basket and ultra-stiff non-pressed paper cone, built to handle high power with minimal distortion. High-grade glue withstands extreme temperatures.
  • SUPERIOR SOUND QUALITY:- Thick foam surround and black stitching cone reinforcement provide clear, distortion-free bass. Frequency response of 48Hz-800Hz suits various music genres.
  • EFFICIENT HEAT DISSIPATION:- Vented T-yoke and 2.5-inch 4-layer ASV voice coils, wound with USA-made OFC wire, maintain performance during extended use, ensuring long-lasting reliability.
  • EASY INSTALLATION:- Custom Rockville mounting gasket simplifies airtight setup. Compact 7.32-inch cutout and 5.91-inch mounting depth fit most enclosures, perfect for custom car audio builds.

Description

Rockville W8K9D2 K9 Series 8" Dual4-Ohm Car Subwoofer. Peak Power Handling: 2000 Watts. Program Power Handling: 1000 Watts. CEA Rated RMS Power Handling: 500 Watts. 2. 5" 4-Layer ASV Voice Coils Wound with OFC Wire Made in USA. This voice coil is stable up to 200 degrees Celsius The voice coil windings are made in the USA . Double Stacked 122 Oz High Quality Magnet. Cast Aluminum Basket With Black Sanded Finish Makes This Sub Very Efficient And Lighter Weight. Two Chrome-Plated Binding Post Terminals. Black Non-Pressed Paper Cone With Beautiful Finish. Our cones are ultra-stiff. They are thicker and stronger than other subs on the market making our subs able to handle more power. . Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion. Black Stitching Cone Reinforcement Ensures Long Life. New Ultra- stiff Polypropylene (PP) Dust cap. Impedance: Dual 4-Ohm Voice Coils. Vented Hole on T-yoke Enhances Heat Dissipation. Special Custom Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet. Custom Rockville Mounting Gasket Looks Beautiful and Makes it Easy To Mount the Subwoofer Air- Tight. High BL Magnetic Motor Gap. We use the highest grade black glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated. Poly cotton spider with very good elasticity. Cutout Diameter: 7. 32” inches. Mounting Depth: 5. 91” inches. Frequency Response: 48 hz- 800hz. 10mm T-Yoke + 10mm Washer. Sensitivity: 81. 2dB. Sealed Enclosure Volume: 0. 28-0. 42 Cubic Feet. Vented/Ported Enclosure Volume: 0. 64-0. 92 Cubic Feet. Weight: 18. 74 Lbs. . Shipping Weight: 20. 95 Lbs. . Shipping Box Dimensions: 11. 42"x 11. 42"x11. 81" Inches

Brand: Rockville


Speaker Maximum Output Power: 2000 Watts


Frequency Response: 800 Hz


Connectivity Technology: wired


Audio Output Mode: Mono


Mounting Type: Car Mount


Model Name: W8K9D4


Speaker Type: Subwoofer


Recommended Uses For Product: car


Compatible Devices: MP3 Player, Laptop, Car Audio System, Tablet, Smartphone


Subwoofer Diameter: 8 Inches


Unit Count: 1.0 Count


Controller Type: Voice control


Surround Sound Channel Configuration: 2.1


Color: Black


Included Components: Car Audio Subwoofer


Product Dimensions: 11"D x 11"W x 11"H


Item Weight: 17 Pounds


Impedance: 4 Ohm


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 1


Control Method: Voice


Speaker Size: 8 Inches


Power Source: Corded Electric


Woofer Diameter: 8 Inches


Vehicle Service Type: Car


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: wired


Includes MP3 player?: No


UPC: 819216023181


Style: 8” K9 Series 4 Ohm


Global Trade Identification Number: 81


Manufacturer: Rockville


Item Weight: 17 pounds


Item model number: W8K9D4


Date First Available: May 23, 2019


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jun 21

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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Top Amazon Reviews

    • Awesome Subs
Style: 8” K9 Series 4 Ohm
Review Image by Coco Coco
Review Image by Coco 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 Coco
    • Be warned: there are careless people but this sub hits hard
Style: 8” K9 Series 2 Ohm
Review Image by James and Becky E. James and Becky E.
Review Image by James and Becky E. James and Becky E.
Review Image by James and Becky E. James and Becky E.
Review Image by James and Becky E. James and Becky E.
I should only give this item a 3 star due to what I found inside the box containing the speaker. The sub itself is amazing and moves a lot of air for its size. Sound quality is excellent and handles lots of power. In the pictures you can see that I found a snap off razor blade when I pulled the sub out of its factory sealed box. It is some type of snap blade with tape for a handle. It scared me to think I could of really badly cut myself opening the package. Be warned: there are careless people that will leave sharp items in places you would least expect. Update: 2-15-2020 I’ve now had this 8” dual 2ohm sub in my Explorer and it still hits just as hard. Still running it off of a 2000w 1ohm Rockville amp. A good pair. No problems to repot except that it has now gone through 2 boxes. This thing will rattle them apart. I’m thinking about building my own next time for a more solid box. ... show more
Reviewed in the United States on September 18, 2019 by James and Becky E. James and Becky E.
    • Durable and handling full watts well
Style: 8” K9 Series 4 Ohm
Definitely one of the best purchases I've done. It doesn't really explain what each voice coil is capable of handling but I've had my 1000watts amp giving two of these 500w (250 on each voice coil) for a little over a year and zero issuess/distortion after all the music I've played through it.
Reviewed in the United States on February 14, 2025 by Marck J.
    • Not to put too much power to them
Style: 8” K9 Series 2 Ohm
I was suprised by the sound two of them put out now i have five and they're putting in work sounds good
Reviewed in the United States on June 26, 2020 by jason ross
    • Unbelieveable bass for such a small speaker.
Style: 8” K9 Series 2 Ohm
I used this with the Car Audio Single 8" SPL Bass Subwoofer Labyrinth Vent Sub Box for my 2018 Kia Soul. I may have a bit of an Outlier situation here, but I originally mounted my Skar 8" sub in the stock Kia Soul spot (think, above the right rear tire well, using the frame as a sub box). I always thought for the amp I was running (Rockford Fosgate R500X1D Prime 1-Channel Class D Amplifier ) it should just "Hit" a bit harder... well, I literally just cut the wire going to the Skar sub, and hard spliced the cord to the stand alone box and "BOOM!" my stereo literally came back to life. I couldn't be more happy with my current setup. For being little 8" sub, this thing hit's some pretty impressive low end. I was showing my friends a sub "burn in" track and the low SPL is just impressive. Highly recommend for any music enthusiast looking for great bass in a small sub. Good Luck! ... show more
Reviewed in the United States on September 22, 2019 by Derek Robert
    • It's amazing
Style: 8” K9 Series 4 Ohm
It's genial
Reviewed in the United States on February 6, 2025 by Sosme
    • My experienceso far
Style: 8” K9 Series 4 Ohm
Very heavy, and massive magnet. Does not withstand high volumes well. The size and holes are not standard, and I have to modify the 8" wakeboard tower enclosures, I have to remove the outer seal of the speaker and use longer and thicker screws. on the enclosure It does not appear to be designed for marine use, too bad. I tried several other 8" speakers, and these are the best, pricier too. Connected wire was quick and easy but the mechanism should be improved to the push and click type. I do not know it is it rust resistant since I drive an open jeep. ... show more
Reviewed in the United States on April 22, 2024 by AMAXAMA
    • Awesome
Style: 8” K9 Series 4 Ohm
These subs pound out the bass. Extremely happy with the sound
Reviewed in the United States on April 16, 2024 by Doug Ward

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