Package Includes:

• (2) Rockville 12" Competition Car Audio Subwoofer
• (1) Rockville Dual 12" Vented w/Divided Chambers 2.0 Cu Ft/Side Sub Enclosure
• (1) Dual Sub Box Enclosure Installation Kit: Speaker Wire, Screws, Spade Terminals

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Video of DESTROYER SUBS:

Features of DESTROYER 12D2:

• Rockville DESTROYER 12D2 12" Dual 2-Ohm Car Subwoofer
• Peak Power Handling: 8000 Watts
• Program Power Handling: 4000 Watts   
• CEA Rated RMS Power Handling: 2000 Watts 
• Voice Coils are made in the USA! 3” 4-Layer Black Aluminum Voice Coils Wound with Aluminum Wire
  USA Voice Coils are hands down The Best in the world 
  The voice coils are rated to withstand high temperatures of 300-350C,
• Triple-Stacked 300 Oz Y35 Magnets. (Y35 is the best grade and they will perform better than most 400 oz magnets)
  1-Piece Chrome T-Yoke with Stamped Logo (1 piece t-yokes magnetize better and makes excursion (xmax) better as well as increases the BL rating. BL is basically how much power you get out of the motor and is one of the most important ratings 
• 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
• Cast Aluminum Basket With Black Sanded Finish Makes This Sub Very Efficient And Lighter Weight
• Large 8 Gauge Chrome-Plated Binding Post Terminals (These are the best terminals on the market and they won't oxidize)
• Black Non-Pressed Paper Cone
• Our cones are ultra-stiff. They are thicker and stronger than other subs on the market making our subs able to handle more power than the competition
• Extra Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion
• Silver Stitching Cone Reinforces the Cone and Ensures Long Life
• Shiny Paper Dustcap (Paper is the best material and can withstand even higher temperatures than polypropylene dustcaps
• Impedance: Dual 2-Ohm Voice Coils
• Special Custom Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet
• Rubber Mounting Gasket Makes it Easy To Mount the Subwoofer Air-Tight.
• High BL Magnetic Motor Gap
• Nomex Spider is resistant to tearing and has the best long-term reliability over regular cotton and poly cotton spiders   
• Cutout Diameter: 11.65” inches
• Mounting Depth: 8.66” inches
• 25mm T-Yoke + 15mm Washer
• Recone kits available at reasonable prices
• Sensitivity:  86.2 dB
• Sealed Enclosure Volume: 1.41-1.77 Cubic Feet
• Vented/Ported Enclosure Volume:  2.12-2.83 Cubic Feet
• Frequency response: 37 Hz - 1K kHz
• Weight: 49.61 Lbs.
• Shipping Weight: 54 Lbs.
• Shipping Box Dimensions: 15.75" x 15.75" x 14.37" Inches
• XMAX: 30 MM

TS Parameters:

Parameter	Wired in Series	Description of Measurement
Electrical Parameters
Re	3.6 Ohm	Electrical voice coil resistance at DC
Fo	37.489 Hz	Drive resonance frequency
Mechanical Parameters (Using Laser)
Mms	247.977 g	Mechanical mass of drive diaphragm assembly including air load and voice coil
Mmd (Sd)	242.091g	Mechanical mass of voice coil and diaphragm without air load
Cms	72.683 mm/N	Mechanical compliance of drive suspension
Bl	21.670 N/A	Force factor (Bl product)
Loss Factors
Qms	2.743	Mechanical Q-factor of of drive in free air considering Rms only
Qes	0.448	Electrical Q-factor of drive in free air considering Re only
Qts	0.385	Total Q-factor considering Re and Rms only
Other Parameters
Vas	22.939	Equivalent air volume of suspension
n0	0.261%	Reference efficiency (2 pi-radiation using Re)
Sd	47.144 cm²	Diaphragm area
SPL	86.2dB	sensitivity

Detailed Info:

• Body: Non-Pressed Paper Cone
• Gap Plate Inside Diameter: 85.5mm (3.37 inches)
• Gap Plate Outside Diameter: 210mm (8.27 inches)
• Gap Plate Thickness: 15mm (0.59 inch)
• Yoke Outside Diameter:210mm (8.27 inches)
• Yoke Thickness: 25mm (0.98 inches)
• Yoke Pole Diameter: 73.9mm (2.91 inches)

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Description of RDV12M:

The RDV12M is a dual 12" vented dual chamber subwoofer box is made in the USA with Grade “A” ¾” MDF wood. This enclosure is made for subs that require larger air space. Each chamber nets 2.0 cubic feet of air space. 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 RDV12M Dual 12" 3.98 cu.ft. MDF Dual Chamber Subwoofer Enclosure Box
• Designed For 12" Subwoofers
• Machine precision cut mounting holes
• ¾” USA Heavy Duty MDF Construction
• Top of the line Glue for extra durable adhesion
• High quality GOLD spring loaded terminals
• Designed, tested, and engineered to work perfectly with high powered subs
• Designed to give the best sound quality
• Tuning frequency: 41Hz

Enclosure Measurements:

• Type of Enclosure: Dual Vented Chamber
• Enclosure Sub Size: Dual 12"
• Dimensions in Inches: 34" L x 18" W x 15 H"
• Top and Bottom Depth: 15"
• Mounting Depth: up to 11" (enough depth for any sub on the market)
• Gross Volume Per Sub (Measurement for the outer dimensions of the box): 5.31 Cubic Feet
• Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 3.98 Cubic Feet

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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.