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Rockville

Rockville W8K6D4 V2 8" 1400w Peak Car Audio Subwoofer Dual 4-Ohm Sub 350w RMS, black

  • Based on 542 reviews
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Availability: In Stock.
Fulfilled by Audiosavings
Arrives Tuesday, Jul 14
Order within 3 hours and 23 minutes
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Speaker Size: 8.0 Inches


Impedance: 4.0 Ohms


Features

  • Rockville K6 Series 8" Dual 4-Ohm Car Subwoofer.
  • Peak Power Handling: 1400 Watts. Program Power Handling: 700 Watts. RMS Power Handling: 350 Watts. 2" 4-Layer voice coils (Black Aluminum Former Wound with 100% OFC Copper Wire). Double Stacked 70 Oz Magnet. Cast Aluminum Basket With Black Sanded Finish. Two Chrome-Plated Binding Post Terminals. Black Non-Pressed Paper Cone.
  • Ultra-Stiff cone is extremely thick and strong. Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion. Black stitching reinforces the cone and ensures long life. Polypropylene (PP) Dustcap. Impedance: Dual 4-Ohm Voice Coils. Vented Holes on T-yoke Enhances Heat Dissipation. Custom Rubber Boot Magnet Cover.
  • Custom Rockville Mounting Gasket makes it Easy To Mount the Subwoofer Air-Tight. High BL Magnetic Motor Gap. 2 layer spider made with thick gauge material that is resistant to tearing. Cutout Diameter: 7.79inches. Mounting Depth: 4.13 inches. Frequency Response: 44Hz - 1.5kHz. 6mm T-Yoke + 6mm Washer.
  • Sensitivity: 83.4dB. Sealed Enclosure Volume: 0.21-0.6 Cubic Feet. Vented/Ported Enclosure Volume: 0.35-1.0 Cubic Feet. 1-Way XMAX: 15 MM. Weight: 8.82 Lbs.. Shipping Weight: 11.5 Lbs.. Shipping Box Dimensions: 11.41 x 11.41 x 11.81

Description

Features:

Brand: Rockville


Speaker Maximum Output Power: 1400 Watts


Frequency Response: 1.5 KHz


Connectivity Technology: wired


Audio Output Mode: Mono


Audio Output Mode: Mono


Mounting Type: Car Mount


Enclosure Material: Aluminum


Speaker Type: Subwoofer


Additional Features: Bass Boost


Antenna Location: car


Subwoofer Diameter: 8 Inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Maximum Range: 10 Meters


Control Method: Voice


Speaker Size: 8 Inches


Woofer Diameter: 8 Inches


Specific Uses For Product: Car


MP3 player: No


Controller Type: Voice Control


Frequency Response: 1.5 KHz


Number of Audio Channels: 2.1


Impedance: 4 Ohms


Connectivity Technology: wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Ethernet


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Brand: Rockville


Model Number: W8K6D4 V2


Model Name: W8K6D4 V2


Built-In Media: Mono Amplifier, Amp Kit


Warranty Description: 1 YEAR


Number of Items: 1


Customer Package Type: FFP


Series Number: 6


UPC: 819216029619


Manufacturer: Rockville


Item Type Name: Rockville W8K6D4 V2 8" 1400w Peak Car Audio Subwoofer Dual 4-Ohm Sub 350w RMS


Speaker Maximum Output Power: 1400 Watts


Unit Count: 1.0 Count


Item Dimensions D x W x H: 11"D x 11"W x 10"H


Item Weight: 8.8 Pounds


Compatible Devices: Desktop, Television, Projector


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • k6 dual 4ohm nice woofer !! loud and deep bass
Speaker Size: 10.0 Inches Impedance: 4.0 Ohms
ok ok so I made the wifes ride my test vehicle I am really happy with this woofer. big woofer with a reasonable depth. nice solid speaker. had to modify the box as the woofer diameter is big and used a spacer to make sure it has room to stay cool but the extra time is worth it. the sound quality is good I crossed it over at 80hz and it will shake everything. I did prep the trunk and doors with sound deadening. bought it to upgrade a kicker comp slim, a nice little speaker (vented) but this is a beast! I was surprised at the sound! I put it in a 0.6 sealed box and on 335 watts rms this is hits very hard! low and deep. part of a 5 channel audio pipe amp class a/b setup in a chevy cruze I ohmed mine out as well and each was 4 dead on and when I wired em up parallel 2ohms even I have 1.2k on 2 10's of a good brand but I going to add 2 of these to my want list they are a bargain ... show more
Reviewed in the United States on April 7, 2019 by Xsvtoyz
    • 12” k6, 4ohm cant get over them 12” k6, 4ohm cant get over them
Speaker Size: 12.0 Inches Impedance: 4.0 Ohms
Review Image by Cason jägar
Review Image by Cason jägar
rockville subs are truly cheap and super fun and loud. get a good box and amp for them, used them for 2 years and all though those winters and they still sound just as good as when i got them, they arnt gonna blow out your windshield but man they are super fun and loud and they do sound really good with the music ... show more
Reviewed in the United States on December 20, 2024 Reviewed in the United States on December 20, 2024 by Cason jägar
    • Hard hitting subs at a solid price.
Speaker Size: 12.0 Inches Impedance: 4.0 Ohms
Bought a set of these Oct 2023 and they’ve been the most reliable subs I’ve ever owned. Started them out on a CT Sounds CT700.1D amp and moved to the 1000w version. They’ve been through 2 boxes now, the punishment of a dirty work truck, a downward facing box, and hit just as hard as they did the first day they were hooked up. Great subs. Buying one for the wife’s 4Runner soon for these very reasons. ... show more
Reviewed in the United States on April 3, 2026 by Kyle
    • 100% perfect
Speaker Size: 10.0 Inches Impedance: 4.0 Ohms
put 4 of these into a 2002 ford ranger extended cab, along with a full interior audio system. the box dimensions i used were 25x25x14”. the box was strapped to the back wall of the truck for seat clearance. powering these subs are 2 Rockville RVA-m3 amplifiers. 2 sets of 2 subs are wired at 1 ohm to two different box wire connectors with all 4 subs firing the same direction. this thing hits HARD and DEEP. it sounds very balanced with a good tune, eq, and low pass settings. i’d 100% recommend these ... show more
Reviewed in the United States on June 14, 2024 by andy
    • Best product for the price.. can't beat
Speaker Size: 15.0 Inches Impedance: 4.0 Ohms
Very good quality sound and price . I like mine..it takes care of business.
Reviewed in the United States on December 30, 2025 by Grace
    • Very Yes
Speaker Size: 12.0 Inches Impedance: 4.0 Ohms
Current setup is a 1st gen Durango with the rear seats folded down and the middle row removed. I've got a box up against the tailgate/hatch, and i just threw a pair of these in there. Certainly an improvement over the previous units, in pretty much every aspect. Im supplying power to them with a boss audio 1500w monobkock, and im certain that this is a limiting factor currently. Even still, my driving soundtrack tends to become the neighborhood Alarm clock. These speakers make the picture frames on your living room wall buzz and vibrate when im rollin through. Soda in my cup holders go flat in record timing. My mirrors are made absolutely useless when I play something like LTE, XLR, or Glacier Pack... and there's still more to be had once I improve my amp game. Also, they arrived sooner than expected. I did have my worries when only 1 box arrived on my porch - luckily it turned out to be a split shipment and speaker 2 arrived the following day ... show more
Reviewed in the United States on December 16, 2025 by Jesse Bradley
    • Good stuff
Speaker Size: 8.0 Inches Impedance: 4.0 Ohms
Compliance curve is sweet. Excursion is good. Fit and finish is excellent. Needs break in. QTS is off. I'm finding a lot of woofers with QTS in the .9 range like this one. Fs is right on. Times have changed and you've just got to tune lower than fs, lose efficiency and roll with it for sq. Or tune high for output. Or go sealed because it's under damped. This is all a byproduct of stronger suspensions in modern subwoofers. This is to protect it from high power and low frequency over excursion. Pretty flexible. Good value. ... show more
Reviewed in the United States on February 3, 2023 by Way Too Critical
    • Great Sub at a fraction of the cost
Speaker Size: 12.0 Inches Impedance: 4.0 Ohms
To be quite honest, I was skeptical installing anything but Alpine, I’ve been into car audio since 1998 and ALL I ever used was Alpine... Got married and and had Better things to spend my money and time. But the Audiophile never went away.... Took and old Type R 12 , made a box, wired up the Alpines and away I went. However I didn’t have the extra $$ to fork out for a newer Alpine sub, so I started watching a few YouTube channels and they were giving a Rockville review. A REAL honest Review... so for more than half the cost of alpine I decided to try this Rockville K6D4 V2. I’m running this off of a Alpine MrvM500 wired down to 2ohms, Wow, I couldn’t believe that a Sub in this price range would be built with such quality. I broke them in for a week and finally let it loose today.... My mirror fell off of my Windshield... I’m impressed... ... show more
Reviewed in the United States on March 27, 2019 by BT

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