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Alpine W12S4 with Sealed Enclosure

750W Max (250W RMS) 12" BassLine Series Single 4 ohm Car Subwoofer

Alpine
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• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design
• Includes Sealed Enclosure

Learn more about the w12s4_mdfs1215

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This item has been discontinued


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Description


Alpine brand icon

Authorized dealer

Legendary Alpine quality at an affordable price

Car audio enthusiasts know that Alpine is the leader in technology and innovation. Their reputation for developing the most reliable products is legendary. The BassLine product line is a their quest to give customers a quality product that won't break the bank.

Surround and wattage match made in heaven

The 250 watts of continuous power that the W12S4 handles complements the poly-foam surround that Alpine went with. It provides the best sound quality money can buy at this price point.

Alpine W12S4

750W Peak (250W RMS) 12" Bass Series Single 4-ohm Car Subwoofer
Quantity: 1

Product Details:

  • 12" Single 4 ohm Bass Series Subwoofer
  • Power Handling:
    • Peak: 750 watts
    • RMS: 250 watts
  • Mica Injected Polypropylene - MIPP Cone
  • Poly-Foam Surround
  • 2" High Temperature Voice coil
  • 10 mm Xmax
  • 52 oz. Single Stacked magnet motor structure
  • Frequency Response: 22 - 200 Hz
  • Resonance Frequency (Fs): 30 Hz
  • Sensitivity: 87.9 dB
  • Recommended sealed box volume: 0.75 cubic feet - 1.5 cubic feet
  • Recommended ported box volume: 1.5 cubic feet - 2.5 cubic feet
  • Top-mount depth: 5-5/16"
  • Cutout diameter: 10-5/8"
  • Subwoofer grille Alpine KTE-12PG optional (sold separately)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

1.5 Cu Ft - Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS1215)

12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (1.5 cu ft airspace)
Quantity: 1

General Features:

  • Single Sealed 12" Enclosure
  • Internal box volume: 1.5 cubic ft
  • High Quality 3/4" MDF Construction
  • Durable black carpeting
  • Pre-lined with Poly-Fil
  • Seams are fully caulked for better efficiency
  • Gold post terminals for clean and easy wiring access
  • Box Dimensions: 16"L x 17"D x 13-1/2"H
  • 30 Day return policy

Product history:

Alpine W12S4, MDFS1215 thumbnail
(newest, current model)
Alpine SWA-12S4 thumbnail
(previous model, replaced by Alpine W12S4 with Sealed Enclosure)

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Specifications & Details


Subwoofer Specifications
Series
BassLine Series
Subwoofer Size
12"
RMS Power Handling
250 watts
Peak Power Handling
750 watts
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
Poly-Foam
Sensitivity
87.9 dB
Frequency Response
22 - 200 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Sealed
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Binding posts (banana clip ready)
Box Exterior Color
Black
Box Finish
Carpet
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

W12S4, MDFS1215

Weight:

35.25lbs

Internal SKU:

w12s4_mdfs1215

Internal Product ID:

198571

Customer Ratings & Reviews


Alpine W12S4 with Sealed Enclosure thumbnail image

5 star
82%
4 star
16%
3 star
2%
2 star
0%
1 star
0%



Durability
4.8
Value
4.9
Features
4.7
Design
4.8
Usability
5

Customer Reviews

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Giveaway

The following review is for MDFS1215, which is a part of the bundle you are viewing.

At the price they are asking,($40 shipped), this is a no-brainer. You'd be very hard pressed to buy the MDF used in this enclosure for the price they are selling the complete box for. Its true 3/4", ( I laid a caliper to it to check), and its advertised dimensions and airspace are spot on.

By Joe on March 17, 2014

135 found this helpful


Great bass

The following review is for MDFS1215, which is a part of the bundle you are viewing.

Bought this for an old punch 2 I had sitting around that I put into my sons car. Previously it was in a small truck box for an s10. Couldn't believe the difference that this box made. The sub is getting 200 watts from the little fosgate amp that I had for it but it is twice as loud as it was in my truck with no distortion. Obviously I had it in way to small of a box before. I got one happy kid though.

By Bruce on January 10, 2015

130 found this helpful


solid box

The following review is for MDFS1215, which is a part of the bundle you are viewing.

Solid box had one screw that didn't grab anything must of hit a soft spot in the wood other then that solid box

By Davy on March 31, 2014

129 found this helpful


A winner

The following review is for MDFS1215, which is a part of the bundle you are viewing.

This is just what the woofer doc ordered. The poly fill is already installed. The black carpet looks great. I'm installing a Rockford T-1 dual 4 ohm 12 in the box. I'm anxious to hear how this is gonna sound in my Mark VIII.

By Big O on September 1, 2014

129 found this helpful


Exactly what I needed.

The following review is for MDFS1215, which is a part of the bundle you are viewing.

I purchased this box to house an Alpine type E sub. I had originally intended on building my own box, but after looking around at the prices of MDF, I found this box, I literally couldn't purchase the materials cheaper than buying this. It's sturdy, and is a perfect match for my sub. I am extremely pleased with my purchase, and would recommend it to anyone looking for a very well built, sealed, enclosure.

By Joshua on February 26, 2015

123 found this helpful


Good box!

The following review is for MDFS1215, which is a part of the bundle you are viewing.

For a pre built box it does the job very well! The poly fill is useless if you need a bigger box just order a bigger box... No leaks what so ever. I did replace it for a custom built ported box.

By john on December 28, 2014

123 found this helpful


Great price

The following review is for MDFS1215, which is a part of the bundle you are viewing.

I'm running a rockford fosgate p2 in it. This box has held up great. i can hear a very small leak but only when I was checking for leaks. Otherwise it was inaudible from even a few feet away. Being 100% sealed is very crucial considering it is a sealed box. But overall id say that this is a great box. Cant beat the price. Nothing a little silicon cant fix.

By Derek on August 29, 2013

120 found this helpful


SEALED ENCLOSURE

The following review is for MDFS1215, which is a part of the bundle you are viewing.

Yes its a prefab box, it is constructed very well with .75" MDF. Solid no leaks.Carpet well done.Looks nice. Just match the air space you want for your sub and your done. I could not build this for the price i paid, so its a no brainer for me. If i was looking for ported or vented i would build one myself because of propper tunning. Just wanted something simple and this exceeded my expectations.

By Charles on May 8, 2014

121 found this helpful


Awesome price and fast shipping

The following review is for MDFS1215, which is a part of the bundle you are viewing.

Very nice for the money. You can't go wrong with this box. Very nice craftsmanship. Does not come pre-wired though. More than enough poly fill though and very durable carpet.

By ken on August 5, 2013

120 found this helpful


Nice Touch!!!

The following review is for MDFS1215, which is a part of the bundle you are viewing.

This box has bundled with the NVX 12" VSW sub and it does some good bass! Well crafted, quality carpet, more than enough polylester. It doesn't come pre-wired though, but since it was a free bundle... I could careless!

By William on June 12, 2013

118 found this helpful




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