Rockville W8K6D4 V2 8-Inch 1400W Peak / 350 RMS Car Audio Subwoofer Dual 4-Ohm
Rockville W8K6D4 V2 8-Inch 1400W Peak / 350 RMS Car Audio Subwoofer Dual 4-Ohm
Hero image 0 of Rockville W8K6D4 V2 8-Inch 1400W Peak / 350 RMS Car Audio Subwoofer Dual 4-Ohm, 0 of 7
Rockville

Rockville W8K6D4 V2 8-Inch 1400W Peak / 350 RMS Car Audio Subwoofer Dual 4-Ohm

|4 ratings

Key item features

  • Dynamic Power: This 8-inch subwoofer provides 1,400W peak and 350W RMS power for high-impact car audio and deep low-end frequency response.
  • Flexible Wiring: Dual 4-Ohm voice coils enable versatile wiring (2-Ohm/8-Ohm single, multi-sub arrays) with a 2-inch, 4-layer 100% OFC copper coil.
  • Robust Build: Rugged cast aluminum basket eliminates resonance; includes an ultra-stiff non-pressed paper cone and thick, reinforced foam surround with heavy stitching.
  • Magnetic Control: Double-stacked 70-ounce strontium magnet assembly and high-BL motor gap ensure precise cone control, deep bass, and mechanical longevity.
  • Thermal Safety: Vented T-yoke architecture with integrated cooling vents actively dissipates voice coil heat, ensuring thermal safety during prolonged use.
  • Compact Integration: Designed for efficient operation in shallow enclosures, requiring minimal space: 0.21–0.6 cu. ft. sealed or 0.35–1.0 cu. ft. ported.
Generated by AI

Specs

Rms power rating, 350 WWoofer size, 8 inSubwoofer type, Dual Voice Coil SubwooferBrand, RockvilleSubwoofer enclosure type, SealedImpedance, 4 ohm

About this item

Product details

Upgrade your car audio system with the Rockville K6 Series W8K6D4 V2 8-inch dual 4-Ohm car audio subwoofer. Engineered to deliver punchy, deep low-end frequency response from a highly compact footprint, this second-generation driver handles an impressive 1,400 watts of peak power, 700 watts of program power, and an authentic 350 watts of continuous RMS power. Built for premium efficiency and mechanical longevity, the W8K6D4 V2 relies on a heavy-duty, double-stacked 70-ounce strontium magnet assembly and a high-BL magnetic motor gap to maintain absolute cone control under heavy electrical stress.

The technical core of this 8-inch subwoofer centers around a 2-inch, 4-layer voice coil wrapped around a black aluminum former and wound with 100% pure oxygen-free copper (OFC) wire. Thermal longevity is maximized via strategically integrated cooling vent holes on the 6mm T-yoke and 6mm washer setup, allowing for rapid heat dissipation during prolonged audio sessions. The mechanical suspension consists of an ultra-stiff, non-pressed paper cone bound to a thick high-excursion foam surround with double black reinforcing stitching. Housed inside a rugged cast aluminum basket with a black sanded finish, this subwoofer includes a 2-layer tear-resistant spider, dual chrome-plated binding post terminals, a custom rubber boot magnet cover, and a tight-sealing mounting gasket.
  • ‌1,400W Peak Output: Built to command high-impact car audio performance with a reliable 350W RMS continuous power rating.
  • Dual 4-Ohm Voice Coils: Offers multiple wiring configurations, allowing you to run a single sub at 2-Ohms/8-Ohms or multi-sub arrays.
  • 100% OFC Voice Coil: High-conductivity 2" 4-layer voice coil wound with pure copper wire on a rigid black aluminum former.
  • 70oz Double-Stacked Motor: Oversized double-stacked 70-ounce magnet assembly drives a high-BL magnetic motor gap for deep bass.
  • Non-Pressed Paper Cone: Thick, ultra-stiff non-pressed paper cone resists folding and acoustic distortion under high mechanical load.
  • Reinforced Stitched Surround: Thick foam surround is structurally reinforced with heavy black stitching for extended linear durability.
  • Cast Aluminum Basket: Rugged cast aluminum frame with a textured black sanded finish eliminates chassis resonance and vibration.
  • Vented T-Yoke Architecture: Integrated cooling vents on the T-yoke actively pull heat away from the voice coil for thermal safety.
  • Compact Shallow Enclosures: Performs efficiently in tiny enclosures, requiring just 0.21–0.6 cu. ft. sealed or 0.35–1.0 cu. ft. ported.
  • Tear-Resistant 2-Layer Spider: Dual-layer structural suspension accommodates an impressive 15mm 1-way XMAX without tearing.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Rms power rating

350 W

Woofer size

8 in

Subwoofer type

Dual Voice Coil Subwoofer

Brand

Rockville

Warranty

Warranty information

1 YEAR, Manufacturer

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4 out of 5 stars
stars
4 ratings2 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars75% (3)
  2. 4 stars0% (0)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star25% (1)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-2 of 2 reviews

Sep 23, 2026
Reviewer name: jackson
Sold and shipped byAudiosavings
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Rockville 1400w peak

Very good speakers will recommend good sound

Incentivized Review
Helpful?6IAJS70SHMZS1233412547
Jan 2, 2024
Reviewer name: Nick
Sold byAudiosavings
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Worst sub ever

I had the sub with power ran to it for not even 15 mins and it has already blown needless to say I wanna try to get a refund on my money cause it was literally the worst sub I have ever owned in my life

Helpful?6IAJS70SHMZS1233412547
Current price is $64.95
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31
Walmart Protection Plan by Allstate

(Only one option can be selected at a time)

How do you want your item?

How do you want your item?
Ships to
Arrives by Sat, Nov 7
|
Sold and shipped by Audiosavings
4.303437967115097 out of 5 stars
4.3 stars out of 5, based on 2007 seller reviews(4.3)
Extended holiday returns
Free Holiday returns until Jan 31