Is the Rockville DV12K51 worth it?

For a budget loaded dual-12 box, yes, if you have a 1-ohm stable amp and trunk space. It delivers strong output for the money, but do not expect premium sound quality.

What amp do I need for this subwoofer box?

You need a mono amp rated for a 1-ohm load and roughly 700 W RMS or more. Running it on a 2-ohm-only amp risks overheating or damage.

Is 2,800 W peak the same as RMS?

No. Rockville rates continuous RMS at 700 W; 2,800 W is a short-burst peak figure. Match your amp to the 700 W RMS number.

How big is the enclosure and how much space does it take?

It is a dual-12 vented box weighing about 69 lb with roughly 1.82 cu ft of air space per sub. Measure your trunk or hatch before buying.

What is included in the box?

The listing includes the subwoofers pre-loaded in the vented enclosure. Wiring, an amp and installation hardware are not included.

When is the price lowest?

Loaded sub packages like this tend to dip during holiday and back-to-school sales. Check the price history before buying.

What do buyers say about the Rockville DV12K51 Dual 12" K5 2800W Car Subwoofers?

Rated 4.4 out of 5 from 23 ratings.

Rockville DV12K51 Dual 12" K5 2800W Car Subwoofers

4.4

Last price we saw

$199.95last seen Oct 29

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What reviewers say

Owners of Rockville loaded subs generally report strong output for the money and decent build quality, with some complaints about durability and fit. The 4.4 out of 5 from 23 ratings suggests mostly satisfied buyers with a few dissenters.

Pros

Loud bass for the price
Enclosure feels solid and well finished
Easy drop-in install with an amp

Cons

Some units arrived with cosmetic or shipping damage
Long-term reliability is hit or miss
Bass can be boomy without tuning

About the Rockville DV12K51 Dual 12" K5 2800W Car Subwoofers

Video of K5 Series UPDATED: Features: Rockville DV12K51 Dual 12" K5 2800w Car Subwoofers Pre-loaded In Vented Sub Enclosure Final Impedance: 1 Ohm Peak Power Handling: 2800 Watts Continuous RMS Power Handling: 700 Watts ¾" MDF enclosure Bonded stapled and braced Computer designed vents Angled at 15 % for perfect bass alignment High quality aviation grade tweed carpet Satin Nickel speaker wire push terminals Enclosure air space is 1.82 Cu Ft per sub Vent dimensions: 3" x 9.75" x 9.75" Tuning frequency of enclosure: 35 Hz 2" 4-Layer Black Aluminum Voice Coils Wound with OFC (100% Copper) Wire The wire we use to wind the voice coil is imported from Japan which is way better quality than the standard China wire 50 Oz High Quality Magnet Cast Iron Basket With Black Sanded Finish Fiber Reinforced Ultra Stiff Black Non-Pressed Paper Cone - This cone is very efficient which makes the speaker sound louder even without requiring a lot of power to push it Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion Blue Stitching Cone Reinforcement Ensures Long Life Polypropylene Dustcap Gold-Plated spring loaded push terminals Vented Hole on T-yoke Enhances Heat Dissipation Mounting Gasket with Rockville branding Makes it Easy To Mount the Subwoofer Air-Tight High BL Magnetic Motor Gap High grade black glue that handles extremely high temperatures which allows our woofer to handle even more power Cutout Diameter: 11.02" inches Mounting Depth: 5.03" inches Frequency Response: 25 Hz - 1.5 kHz 6mm T-Yoke + 6mm Washer Sensitivity: 88dB Weight: 62.7 Lbs. Dimensions of enclosure: 32.5" x 17.25" x 16.25" Shipping Weight: 69 Lbs. Shipping Box Dimensions: 34" x 18.7" x 17.9" Inches Detailed Info: Body: Non-Pressed Paper Gap Plate Inside Diameter: 80mm (3.14 inches) Gap Plate Outside Diameter: 156mm (6.14 inches) Gap Plate Thickness: 25mm (0.98 inches) Yoke Outside Diameter: 145mm (5.7 inches) Yoke Thickness: 6mm (0.23 inches) Yoke Pole Diameter: 50mm (2 inches)