Chat
Contact us
Close contact box
Connect ID #
700 784 59
Connect ID #
700 784 59

Sorry, chat is currently unavailable

Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Thank you. We will be calling you .
We're sorry. We have encountered a problem.

Alpine S-W12D4 S-Series 12" subwoofer with dual 4-ohm voice coils

Item # 500SW12D4

To create great bass, you need the best in materials and engineering.

To create great bass, you need the best in materials and engineering.

Item # 500SW12D4

About the Alpine S-W12D4

Bob Bihlmayer

Great bass in less space

To create great bass, you need the best in materials and engineering. Alpine's S-Series subwoofers apply technology from their higher end subs to bring you the depth and punch that'll make your tunes come alive. And to make things even better, these subs are about an inch shallower than their predecessors, making them great candidates for locations where regular high-power subs won't fit.

Great bass in less space

Alpine Authorized Online Dealer

To create great bass, you need the best in materials and engineering. Alpine's S-Series subwoofers apply technology from their higher end subs to bring you the depth and punch that'll make your tunes come alive. And to make things even better, these subs are about an inch shallower than their predecessors, making them great candidates for locations where regular high-power subs won't fit.

Advanced materials

The S-W12D4 12" sub can handle up to 600 watts RMS, so you can drive it hard without any worries. The tough Kevlar® treated cone stays rigid under pressure, while its rubber High Amplitude Multi-Roll (HAMR) surround enables maximum excursion for impressive performance. Its dual 4-ohm voice coils allow for extra wiring flexibility, which helps if you plan on adding another subwoofer down the line. Also, it rocks in both sealed and ported boxes, so you can choose an enclosure that suits your tastes.

READ LESS

Product highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • Kevlar reinforced pulp cone with HAMR Santoprene rubber surround
  • frequency response: 26-200 Hz
  • power handling: 600 watts RMS (300 watts per coil)
  • peak power: 1,800 watts
  • top-mount depth: 5-1/16"
  • grille not included
  • warranty: 1 year
  • MFR # S-W12D4

What's in the box:

  • One 12" Dual 4-ohm voice coil subwoofer
  • 1 Rubber concealing ring (installed)
  • Two 3" jumper cables (each has a single banana connector on each end)
  • Subwoofer Application Guide (English/ French)
  • On-line product registration information (English/ French/ Spanish)
  • Warranty information (English/ French)
  • Important Notice! (English/ French)

Customer reviews for Alpine S-W12D4

Loading reviews...

Average review:

4.5 out of 5 stars
28 reviews

Filter by rating

Customer photos

Customer provided image, click to load a larger version.
Customer provided image, click to load a larger version.

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee review (What's this?)

Reviewed on Samsung.com

This review was collected as part of a promotion

Pros:

Cons:

Crutchfield response
Customer provided image, click to load a larger version.
<< >>

Product Research

Features
Enclosure Compatibility

Features

Kevlar Reinforced Pulp Cone: This Alpine S-Series subwoofer uses a parabolic cone structure, with a Kevlar reinforced pulp cone and a Poly-Mica-Talc dust cap. Kevlar adds strength and tear resistance to the woofer cone while maintaining the benefits of a pulp cone material. The oversized, inverted dust cap increases rigidity and virtually eliminates cone distortion at extreme volume levels.

HAMRS: The woofer features a High Amplitude Multi Roll Surround (HAMRS) that allows a large linear excursion and greater SPL. The HAMRS design allows extreme excursions without sacrificing valuable cone area.

Progressive Spider: The progressive spider has reinforced layer tinsel leads to ensure reliable and consistent control of the tinsel leads and eliminate any mechanical noise or interference often seen in high excursion cone designs.

Compound Radius Curve Pole Geometry: Alpine's Patented Compound Radius Curve extended pole geometry ensures a symmetrical magnetic field, while optimizing flux density to reduce distortion and further improve power handling and output.

Dual Voice Coils: For system flexibility, the woofer has two 4Ω voice coils. When the voice coils are wired in parallel, the woofer presents a 2Ω load. When the voice coils are wired in series, the woofer presents an 8Ω load.

Spring Terminals: The spring post terminals are all located on one side of the woofer. The terminals will accept pin connectors, single banana plugs, or bare wire up to 8 gauge.

Jumpers: Included with the woofer are two voice coil terminal jumpers. These jumpers allow you to easily wire the voice coils in parallel (for a 2Ω load) or series (for an 8Ω load).

Enclosure Compatibility

Sealed Box: Alpine recommends a sealed enclosure with an internal volume between 0.61 and 1.06 cubic feet, with an ideal volume of 0.85 cubic feet. Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.

Ported Box Volume: The recommended ported box volume ranges from 1.06 cubic feet to 1.56 cubic feet, with the ideal size being 1.51 cubic feet, using a slot port measuring 12-1/2" (W) x 1" (H) x 16" (L).

Loading accessories...

Customer Q&A

11 questions already asked

Q
Will this for in a ground shaker box for my 05 f250 4 door crew cab?.. box says 5" mounting depth.. could I squeeze it in? Or what subwoofer would you recommend.. don't want to go too shallow if I have all that extra room ...
stephen m  Aug 25, 2022
1 answer
A
So, this wouldn't be a good fit, as it would press against the back of the box. You should reach out to one of our advisors to discus the box volume, cutout diameter, and then sub fitment, as well as amplifier choice. They would love to get you set up with the right sub! You can reach out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the best sub for you application!
thomas  Aug 26, 2022 (Staff)
Q
I have a s-a60m amp, that tested 851 watts rms at 2ohms. Would it be a good match for this subwoofer?
joseph  Aug 13, 2022
1 answer
A
According to the information we have from Alpine, the S-A60M amp is outputting 600 watts rms at 2 ohms which is exactly what the Alpine S-W12D4 can handle. That amp is a great match for that sub.
allison  Aug 13, 2022 (Staff)
Q
What amp should I get if i have 2 Alpine S-W12D4 in one box. Also what works better with those 2 subs, enclosed or vented?
aumbomb  Jul 17, 2022
1 answer
A
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
zachary  Jul 17, 2022 (Staff)
Q
I have a fockfsofer punch 325.1 and a 12 inch alpine s-w12d4 sub will this amp and sub work together?
francisco  Apr 19, 2021
1 answer
A
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
kristina  May 11, 2021 (Staff)
Q
Does the recommended box inclosure volume account for the speaker unit displacement?
marcus  Dec 14, 2020
2 answers
A
I believe they usually do, yes. I have this sub mounted in a 1.0 cubic foot custom fiberglass enclosure, filled with poly stuffing. It sounds amazing. Super right, and pretty good low end extension down to around 30Hz. Enclosure recommendations are guidelines, not rules.
christopher  Dec 16, 2020
A
No, but the volume specs are usually expressed as a range of min-to-max, which will allow for the volume space used buy the speaker. There are online calculators if you wish to calculate all of the variables for speaker design. Just search for diy speaker design calculators.
wilburn s.  Dec 15, 2020
Q
I need to put these speakers in a ported box with 1.25 cubic ft of air space, how will that sound?
austin  Sep 16, 2020
1 answer
A
Any enclosure that's ported almost doubles the bass output. If your looking for more booming bass, then ported is the way to go. Just stick to the manufacturer's box dimensions and port dimensions.
shane  Sep 16, 2020
Q
sounds great, but I got the grille cover and found that it was very difficult to attach to the speaker. After much cajoling I got it attached all the way around but it wants to come off with the sound of the driving down the road... any good fixes out there?
jordan  Jun 02, 2020
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
kristina  Jun 17, 2020 (Staff)
Q
What amplifier could I use to wire two Alpine S-W12D4 12 inch subwoofers to 1 ohm with?
mattyp  Mar 31, 2020
1 answer
A
I used a Single Rockford Fosgate R1200-1D for 2 of these in my 05 Silverado look my up on IG:Dzy_Duramax Subs slammed in a sealed box. Handled anything I threw at it.
daniel  Mar 31, 2020
Q
Can you fit this in a single cab truck?
jimmy  Jan 16, 2020
2 answers
A
Any sub could fit just need the right box made to fit
erik  Jan 20, 2020
A
Depends on the enclosure you choose.
dustin  Jan 16, 2020
Q
4 OHM TO 2 OHM WHAT CAN IT HANDLE?
clark  Oct 20, 2019
1 answer
A
The power handling of that Alpine S-W12D4 is 600 watts RMS (300 watts per coil). If you have just one of them you will likely be wiring it in parallel to 2 ohms. If you have two subs you would wire them to either 1 ohm or 4 ohm - depending on your amp.
casey  Oct 28, 2019 (Staff)
SHOW MORESHOW LESS

Loading articles...

Compare the sound