(2) Rockville K5 W12K5S4 12" 1400 Watt Car Subwoofers+Sealed Sub Box Enclosure

$474.92 $480.80
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Product Description
Package Includes:
  • (2) Rockville K5 W12K5S4 12" 1400w 4 Ohm Car Audio Subwoofer Sub 350w RMS CEA Rated!
  • (1) Rockville RD12 Dual 12” 1.25 cu.ft. 3/4” MDF Sealed Subwoofer Enclosure Sub Box
  • 20 Drywall Wood Screws (Wood screws are the type of screws; the screws are actually made of metal)
  • 20 Feet of 14 AWG Blue Speaker Wire
  • 4 Spade Terminals

Video of K5 SERIES:

Features of W12K5S4:

  • Rockville W12K5S4 K5 Series 12" 4-Ohm Car Subwoofer
  • Peak Power Handling: 1400 Watts
  • Program Power Handling: 700 Watts
  • CEA Rated RMS Power Handling: 350 Watts
  • 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
  • Paper Dustcap is light weight and efficient helping the sub to play louder even if your amp is not so powerful
  • Chrome-Plated Binding Post Terminals - These are the best terminals on the market and they accept any gauge wire
  • Impedance: Single 4-Ohm Voice Coils
  • Vented Hole on T-yoke Enhances Heat Dissipation
  • Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet
  • Mounting Gasket with Rockville branding looks great 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
  • Cutout Diameter: 11.02” inches
  • Mounting Depth: 5.03” inches
  • Frequency Response: 25 Hz - 1.5K kHz
  • 6mm T-Yoke + 6mm Washer
  • Sensitivity: 88dB
  • Sealed Enclosure Volume: 0.8 – 1.3 Cubic Feet
  • Vented/Ported Enclosure Volume: 1.3 – 2.0 Cubic Feet
  • Weight: 10.1 Lbs.
  • Shipping Weight: 11.6 Lbs.
  • Shipping Box Dimensions: 13.78" x 13.78" x 8.97" 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)

T/S Parameters (Tested on a Klippel):

Electrical Parameters

 

 

 

Re

3.31

Ohm

electrical voice coil resistance at DC

Le

0.944

mH

frequency independent part of voice coil inductance

L2

1.468

mH

para-inductance of voice coil

R2

14.7

Ohm

electrical resistance due to eddy current losses

Cmes

871.67

μF

electrical capacitance representing moving mass

Lces

20.9

mH

electrical inductance representing driver compliance

Res

31.48

Ohm

resistance due to mechanical losses

fs

37.3

Hz

driver resonance frequency

 

 

 

 

Mechanical Parameters

 

 

 

(using laser)

 

 

 

Mms

130.02

g

mechanical mass of driver diaphragm assembly including air load and voice coil

Mmd (Sd)

117.731

g

mechanical mass of voice coil and diaphragm without air load 

Rms

4.738

kg/s

mechanical resistance of  total-driver losses

Cms

0.14

mm/N

mechanical compliance of driver suspension

Kms

7.14

N/mm

mechanical stiffness of driver suspension

Bl

12.213

N/A

force factor (Bl product)

Lambda s

0.028

 

suspension creep factor

 

 

 

 

Loss factors

 

 

 

Qtp

0.612

 

total Q-factor considering all losses

Qms

6.429

 

mechanical Q-factor of driver in free air considering Rms only

Qes

0.675

 

electrical Q-factor of driver in free air considering Re only

Qts

0.611

 

total Q-factor considering Re and Rms only

Other Parameters

 

 

 

Vas

47.7813

l

equivalent air volume of suspension

n0

0.353

%

reference efficiency (2 pi-radiation using Re)

Lm

87.67

dB

characteristic sound pressure level (SPL at 1m for 1W @ Re)

Lnom

88.5

dB

nominal sensitivity (SPL at 1m for 1W @ Zn)

 

 

 

 

rmse Z

3.94

%

root-mean-square fitting error of driver impedance Z(f)

rmse Hx

2.2

%

root-mean-square fitting error of transfer function Hx (f)

Sd

490.87

cm2

diaphragm area

Owner's Manual


Description of RD12:

The RD12 dual sealed speaker box is made in the USA with Grade “A” ¾” MDF wood. This enclosure is made with precision cutting machinery by industry experts that have been making these enclosures in the USA for over 20 years. All Rockville enclosures come with a customized enhanced glue that is unmatched by any other manufacturer. That means that the carpet will stay in place and not rip or tear. The ¾” USA MDF is much stronger then any type of import wood. This will keep your box performing at an optimal level by not flexing and distorting your woofers. Your woofers will thank you! EVERY Rockville enclosure is not only glued at all joints but stapled as well. If that wasn’t enough we add a layer of silicon to every seam! This makes your Rockville enclosure rock even more!

MADE IN THE USA WITH PRIDE!

Features:

  • Rockville RD12 Dual 12" Sealed Subwoofer Enclosure
  • Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs!
  • 3/4" USA Heavy Duty MDF Construction
  • Machine precision cut mounting holes
  • Top of the line Glue for extra durable adhesion
  • Designed, tested, and engineered to work with most of today’s popular woofers. These enclosures are built with the quality additives needed to maximize the performance of any sound system.

Enclosure Measurements:

  • Type of Enclosure: Sealed
  • Enclosure Sub Size: Dual 12"
  • Dimensions in Inches: 13.25” x 13.25” x 32”
  • Top and Bottom Depth: 14"
  • Mounting Depth: up to 12" (enough depth for any sub on the market)
  • Gross Volume Per Sub (Measurement for the outer dimensions of the box): 1.55 Cubic Feet
  • Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 1.25 Cubic Feet

About Rockville Quality Control Procedures:

The Rockville brand stands for Quality, Innovation and Value. All Rockville products go through the most rigorous quality control standards in the industry. Products go through months of extensive testing before they reach your hands. All user functions are tested and all internal components are tested for quality. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to test every concept model for weeks or months before starting production. Once production begins, Rockville sends product engineers to their factory to quality control every line of production. During production every product is tested and on top of that Rockville goes the extra mile and has their high level product engineers do an additional quality control. They test a certain percentage of all products from the production line a second time to ensure that the quality meets their vigorous standards, and to make sure that there is never a batch of products with even a slight problem. All Rockville sub enclosures are backed with a full 90 day warranty, though it is unlikely that you will need to use it.

Complete Dual Subwoofer Enclosure Installation Kit!

Includes:

  • 20 Drywall Wood Screws (Wood screws are the type of screws; the screws are actually made of metal)
  • 20 Feet of 14 AWG Blue Speaker Wire
  • 4 Spade Terminals

This accessory package includes everything you need to install two subwoofers into an enclosure, and wire your enclosure to your amplifier. This package is a top of the line accessory package which we put together and tested.

The drywall wood screws were hand selected by our installation experts because they drill into the enclosure very cleanly, without chipping the enclosure. The speaker wire is 14 gauge. This is way better than using 16 gauge. You can be 100 % sure that your enclosure will have a clean signal to the amplifier with this top of the line speaker wire. These spade terminals have also been hand selected by our installation experts to make the internal wiring simple, secure, and to run the audio signal cleanly.

Shipping & Returns

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