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Alpine W12S4

BassLine Series 12" 4-ohm subwoofer

Item # 500W12S4

If you're a car sound enthusiast, you understand the importance of bass.

Read more from Crutchfield writer, Bob B.

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$74.99 each

About the Alpine W12S4

Holding down the BassLine

If you're a car sound enthusiast, you understand the importance of bass. Alpine shares that view, and they've created the BassLine Series of subwoofers to give you the low-frequency punch you need to create a well-balanced system. You won't just hear the bottom end, you'll feel it. And best of all, Alpine's made these subs affordable so you can fill your vehicle with bass without emptying your savings account.

Holding down the BassLine

If you're a car sound enthusiast, you understand the importance of bass. Alpine shares that view, and they've created the BassLine Series of subwoofers to give you the low-frequency punch you need to create a well-balanced system. You won't just hear the bottom end, you'll feel it. And best of all, Alpine's made these subs affordable so you can fill your vehicle with bass without emptying your savings account.

Built solid

Alpine's BassLine W12S4 12" sub is built around a polypropylene/mica cone that stays stiff at high volumes to avoid distortion. The poly-foam surround and tough steel frame give the cone the support it needs to pump out the volume. This sub handles up to 250 watts RMS and its 4-ohm impedance makes it a great match for most amplifiers.  

To drive this single subwoofer, we recommend a mono amplifier rated between 200 and 375 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

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Product highlights:

  • 12" 4-ohm subwoofer
  • polypropylene and mica cone with poly-foam surround
  • stamped steel frame
  • power handling: 50-250 watts RMS
  • peak power: 750 watts
  • sensitivity: 87.9 dB
  • frequency response: 22-200 Hz
  • top-mount depth: 5-5/16"
  • sealed box volume: 1.09 cu. ft.
  • ported box volume: 1.91 cu. ft.
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # W12S4
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What's in the box:

  • One 12" Subwoofer
  • Adhesive backed foam gasket
  • Application Guide (English/ French)
  • On-line product registration information (English/ French/ Spanish)
  • Warranty information (English/ French)
  • Important Notice! (English/ French)

Customer reviews

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Alpine W12S4 Reviews

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Features

PWR Cone Design: The subwoofer's Progressive Wavelet Ribs (PWR) cone design helps break up standing waves and cone resonances to keep distortion low. The sub uses a polypropylene and mica damped cone assembly and a high-excursion poly-foam surround.

Progressive Polyester Spider: The progressive polyester spider provides accurate control of the subwoofer cone motion.

Two-Piece Yoke: The two-piece yoke uses a vented pole to provide improved air flow and help cool the voice coil.

Spring Terminals: The spring post terminals accept pin connectors, single or dual banana plugs, or bare wire up to 8 gauge.

Sealed Box Volume: The recommended sealed box volume range is from 0.75 ft³ to 1.5 ft³, with 1.09 ft³ being the ideal size.

Ported Box Volume: The recommended ported box volume range is from 1.43 ft³ to 2.43 ft³. The ideal size is 1.84 ft³, using a slot port measuring 12-1/2" (W) x 1" (H) x 10" (L).

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Chad recommended [ jason  Mar 06, 2019 ]
A
Had the original bassline series, one blew. This is close to direct replacement [ Steven  Aug 15, 2018 ]
A
Because of Alpine reputation and good reviews. [ MICHAEL  Jan 18, 2018 ]

2 questions already asked

Q
Can you install these in a 89 single cab gmc pickup?
[ Shelby  Jan 06, 2019 ]
2 answers
A
I am not sure if you would find a pickup box with enough air space. Check out the boxes designed to go behind the seat. Something like the kicker 44tcwc or 43 tcwrt would be good options. You will lose a little bit of storage and a little bit of seat adjustment, but it will work.
[ William  Jan 07, 2019 ]
A
You need to run an amplifier and sub under or behind seat but don't know how much room you have but have to put speaker in a box and wire that to amp
[ Robert  Jan 06, 2019 ]
Q
Can someone throw together the ideal ported box blueprint type thing. And what would the tuning frequency of this be?
[ Waffle  Nov 02, 2017 ]
1 answer
A
According to the Alpine owner's manual, the recommended vented (or ported) box should measure: 22.5" (width) x 12.5" (height) x 14" (depth); with a vent (or port) length of 12.5" x 1" diameter. For more details or to discuss further, please feel free to contact an Advisor directly by phone (888.955.6000) or online chat. Thanks! :)
[ Larry  Nov 03, 2017 ]  Staff

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