Alpine Add an MDFS12 to Your Cart for Free with Select 12" Subwoofers at Sonic Electronix

Alpine Add an MDFS12 to Your Cart for Free with Select 12" Subwoofers

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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.
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.
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Refers to the diameter of the subwoofer, measured in inches.
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.

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.
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.
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.

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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".
This is the color of the speaker's or subwoofer's cone.
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.

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.
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Alpine S-W12D4

1800W Max (600W RMS) 12" Type-S Series Dual 4 Ohm Car Subwoofer

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1800W Max (600W RMS) 12" Type-S Series Dual 4 Ohm Car Subwoofer

• 1800 Watts Max
• 600 Watts RMS
• Pulp/Kevlar Cone
• High Amplitude Multi-Roll (HAMR) Surround
• High Strength Steel Frame Basket
• Progressive Spider with Reinforced Layer Tinsel Leads
• 65 mm Voice Coil with High-Temp 5-Layer DVC Winding on AL Former

4
Alpine S-W12D4

1800W Max (600W RMS) 12" Type-S Series Dual 4 Ohm Car Subwoofer

In stock

$190.00 (5.29% off)
$179.95
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  • Don't Forget Speaker Wire With Your Order!
  • Buy One Get One 10% OFF

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1800W Max (600W RMS) 12" Type-S Series Dual 4 Ohm Car Subwoofer

$179.95

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

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12" SingleHatchback Style Small Sealed Subwoofer Enclosure

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

$69.99

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Universal 12" Subwoofer Grille

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

$27.99

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Alpine R-W12D4

2250W Max (750W RMS) 12" R-Series Dual 4-Ohm Car Subwoofer

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2250W Max (750W RMS) 12" R-Series Dual 4-Ohm Car Subwoofer

• 2250W Max
• 750W RMS
• Parabolic pulp/kevlar cone
• H.A.M.R. surround
• Cast aluminum frame with integral shorting sleeve
• Polypropylene, mica and talc dust cap
• 127 oz. Strontium ferrite segmented magnet

19
Alpine R-W12D4

2250W Max (750W RMS) 12" R-Series Dual 4-Ohm Car Subwoofer

OUT OF STOCK

$350.00 (8.59% off)
$319.95

Item Added to Cart

R-W12D4 small

2250W Max (750W RMS) 12" R-Series Dual 4-Ohm Car Subwoofer

$319.95

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

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

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

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