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Alpine SWR-12D4 (Open Box) INCOMPLETE

12" Dual 4 Ohm Type-R Series Car Subwoofer (Open Box)

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Alpine SWR-12D4 (Open Box) INCOMPLETE

12" Dual 4 Ohm Type-R Series Car Subwoofer (Open Box)

$124.99

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Single 12" Ported Enclosure Custom Black Baffle

Gold Binding post terminals and a high quality 5/8" MDF construction.

$59.99

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25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

$37.85

Add
20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

$53.99

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General Features:

  • 12" Dual 4-Ohm Type-R Series Car Subwoofer
  • Product is Open Box
    • Missing Manual
    • Previously Installed
  • Power Handling:
    • Peak: 3000 watts
    • RMS: 300-1000 watts
  • Impedance: Dual 4 ohms
  • Kevlar treated pulp cone
  • Durable HAMR Santoprene™ surround
  • Progressive Conex spider
  • Compound Radius Curve pole geometry
  • Oversized 2.6", High-Temperature, 4-Layer Dual Voice Coil
  • Frequency response: 26-300 Hz
  • Resonance Frequency (Fs): 31Hz
  • Top-mount depth: 6-3/8"
  • Sensitivity: 84dB
  • 1-year Sonic Electronix Warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Type-R (Alpine)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
3000 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
600 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
24 - 200 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
85 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
20 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Dark Gray
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Kevlar Fiber
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Santoprene Rubber
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.65 cubic feet
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.25 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.0 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.0 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
6-3/8"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
10-13/16"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

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Accessory Tools and Products

Accessories added

Single 12" Ported Enclosure Custom Black Baffle

Gold Binding post terminals and a high quality 5/8" MDF construction.

Your Price $59.99

12" Dual Hatchback Style Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $69.95

12" SingleHatchback Style Small Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $39.99

12" Single Hatchback Style Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Single Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $43.95

12" Subwoofer Small Sealed Enclosure

CARB Compliant, 3/4" MDF Sealed Enclosure Lined with Premium Carpeted Finish

Your Price $34.95

12" Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Sealed Enclosure Lined with Premium Carpeted Finish

Your Price $39.99

12" Vented Subwoofer Enclosure

CARB Compliant, 3/4" MDF Vented Enclosure Lined with Premium Carpeted Finish

Your Price $65.95

Single 12" Venteded MDF Subwoofer Enclosure

12" Vented 3/4" MDF Enclosure Lined w/ Polyfil.

Your Price $44.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $64.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $87.63

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $74.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $6.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Alpine SWR-12D4 (Open Box) INCOMPLETE Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Alpine SWR-12D4 (Open Box) INCOMPLETE Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Alpine SWR-12D4 (Open Box) INCOMPLETE Subwoofers

Mono Amp

4 Channel Amp

4 Alpine SWR-12D4 (Open Box) INCOMPLETE Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 3 questions and 7 answers
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Will this amp be enough to power two Alpine SWR-12d4? Or am I better off getting the SWR-12d2 and getting the Belva BB5000D amplifier?
Nash P on Dec 20, 2014
Alpine SWR-12D4-OB
Alpine SWR-12D4-OB
Alpine SWR-12D2
Alpine SWR-12D2
Belva BB5000D
Belva BB5000D
Hifonics BRX2000.1D
Hifonics BRX2000.1D
Best Answer: Also, with the car revving thing the guy said above, it's not like that, that be like, I could set the max to 8,000 rpm to get maximum power when I need it, or I could set a governor at 6,000 so I'll never really be able to use the full potential. Just because you wire it to be able to push a 1,000 watts each, doesn't mean you're driving around with the stereo cranked. Which is just a bad idea. The belva is probably overrated anyway
Reply · Report · Deon M on Dec 26, 2014
· Add Answer · I Have This Question Too (0)
I have ran two alpine type s at 1 ohm and the amp has never even got warm but i was wondering if this amp will work for two type r's till i can get the mono hifonics brx 2000. Would this amp be way under powering them? The r's say they can handle 300-1000 rms and they would be at about 550 rms give or take at 1 ohm.I just don't want to mess up two new subs.
Steven S on Feb 9, 2015
Alpine SWR-12D4-OB
Alpine SWR-12D4-OB
Hifonics BRX1100.1D
Hifonics BRX1100.1D
Best Answer: Hell Steven,

You answered your own question within your question.

The SWR-12D4 is asking for power within 300-1000w RMS. The BRX1100.1D will provide ~550w RMS to each driver, which is well within the 300-1000w RMS. This means it will work, and will not harm your subwoofers.

On the contrary, the plan of putting the BRX2000 may very well harm your drivers. Just because Alpine says the subwoofer can handle up to 1k , doesn't mean you should. That is the equivalent of Red Lining your vehicle at all times Just because it can....disastrous right?

Like previous models, the magic number is 750w RMS , that the SWR are happy at. This means you may want to consider the Hifonics X1500.1D instead.

This is not to say that we completely discourage you going with the 2k; However, PLEASE PLEASE PLEASE make sure you are providing the amp the cleanest signal possible, and - obviously - be responsible. We also would hate for you to 'mess up two new subs', especially sense blown subs are not covered under warranty. Plan accordingly.
Hifonics X1500.1D
Hifonics X1500.1D
Reply · Report · Customer SStaff on Feb 10, 2015
· Add Answer · I Have This Question Too (0)
Can I safely bridge this amp for 2 ohms at 700 watts? In order to run an Alpine SWR-12.
Bug3195 on Jan 11, 2015
Alpine SWR-12D4-OB
Alpine SWR-12D4-OB
Hifonics X1100.1D
Hifonics X1100.1D
Best Answer: Hello Jonathan,

The X1100.1D is a MONOblock, so it hasn't anything To "Bridge". 'Bridging', by definition, is to bring Two separate entities together; MONOBLOCK literally means One Channel (not to be confused with its multiple outputs). To your question, the SWR-12D4 can be wired in Parallel to a 2ohm final load, and connected to the X1100.1D for ~700w RMS @2ohms.
Reply · Report · Customer SStaff on Jan 11, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

SWR-12D4-OB

Weight

26.00lbs

Internal SKU

LS-swr12d4-OBINC

Internal Product ID

62136

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alpine SWR-12D4 (Open Box) INCOMPLETE