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Alpine SWE-12S4

Type-E 12" 4-ohm subwoofer

32 Reviews

Item # 500SWE12S4

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Alpine W12S4




Our take on the Alpine SWE-12S4

Alpine's Type-E subwoofers will fill up your ride with big bass without draining your bank account. These low-profile subs handle plenty of power, and still use the same tried-and-true design that's made this line so popular with budget-conscious bassheads. You'll get an amazing amount of rumble when you add one or two of these to your ride.

Alpine Authorized Online Dealer

Nice price, big bass

Alpine's Type-E subwoofers will fill up your ride with big bass without draining your bank account. These low-profile subs handle plenty of power, and still use the same tried-and-true design that's made this line so popular with budget-conscious bassheads. You'll get an amazing amount of rumble when you add one or two of these to your ride.

Side view of Type-S 12

Built tough

The SWE-12S4 12" subwoofer handles up to 250 watts RMS. Alpine treats the pulp cone with Kevlar so it won't buckle or distort under heavy use, while the tough rubber HAMRS surround allows for maximum excursion while keeping the cone under control for more accurate bass. Extra venting maximizes air flow through your speaker, dissipating heat and increasing the sub's reliability. The heavy-gauge, stamped steel cage holds its shape through the most relentless pounding, so the bass stays tight.

Product Highlights:

  • 12" subwoofer with 4-ohm voice coil
  • Kevlar reinforced pulp cone with HAMRS Santoprene rubber surround
  • heavy-gauge stamped-steel cage
  • frequency response: 28-200 Hz
  • power handling: 50-250 watts RMS
  • peak power: 750 watts
  • sensitivity: 87.9 dB
  • top-mount depth: 5"
  • sealed box volume: 0.69-1.04 cu. ft.
  • ported box volume: 1.04-1.54 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the Box:

  • One 12" Single voice coil subwoofer
  • 1 Rubber concealing ring (installed)
  • Type-E Subwoofer Application Guide (English/ French)
  • On-line product registration information (English/ French/ Spanish)
  • Warranty information (English/ French)
  • Important Notice! (English/ French)

Great sound in the Sound Ordnance Bass Bunker ported box. Nice deep base

Roger B, Wareham, MA


Alpine SWE-12S4 Reviews

Average Customer Review(s):

(32 Reviews)

Great hitters!!!

Kyle from Brecksville ohio on 12/6/2013

I had just bought these subs yesterday with a slot ported box and hooked them up with a crunch 1500 watt amp and man do these things pound for the price, alpine is and always will be a great product. I still have yet to play with my amp settings (they are set low as i am breaking it in still) and they hit hardd would highly recommend to anyone looking for a good system.

Pros: Great sound quality and overall great build, i do not think i will be undersatisfied with these and would recomend to many

Cons: No complaints great subs

Great subs for the money

Roger B from Wareham, MA on 8/28/2013

Crutchfield Customer Review (What's this?)

Great sound in the Sound Ordnance Bass Bunker ported box. Nice deep base


Cons: none

Hard Hitters

Nathanial from Plant City, FL on 8/14/2013

Crutchfield Customer Review (What's this?)

I got these subs because I wanted to add bass to my car. I put two of these in a 3.06 cubic foot box tuned to 36 hertz. These things pound hard. They take peoples breath away, literally.

Pros: Hard hitting. Great price. Easy to install.

Cons: Too Flashy.

Reviews for the Alpine SWE-12S4

JEBAAY from Murrieta,CA on 8/11/2013

Crutchfield Customer Review (What's this?)

A really great sounding woofer for an excellent value!!



just what i wanted, and i' very piciky.

tom e from stellite beach, fl. on 8/5/2013

i was impressed with to all around sound, morning, noon and night

Pros: it would fit in my car.

Cons: but i have a truck

Unbeatable for the price

Deez from Yuba City, Ca on 8/4/2013

Crutchfield Customer Review (What's this?)

Very surprised how good this sub sounded for the price. The only reason I bought it was so I would have some bass while my JL Audio W3 got repaired. But after hooking it up I wondered if there was really a need for the W3. It was supposed to be a scratch n dent but mine came in mint condition.

Pros: Great sound for the price!

Cons: Rubber surround that covers screws doesn't stay on very well.

all I can say is wow

bass lover from california on 7/29/2013

Crutchfield Customer Review (What's this?)

man, I bought these subs for a temporary fill while I waited for the new JL Audio thin subwoofers to come out and man, there is no reason to replace them, the bass is so tight and it pounds, best of all these were open box and I got both for less than $100.. to my door. I see no reason to buy the JL's now.

Pros: sound is awesome

Cons: hard to find since they are dis-continued

respectable sound

Anonymous from martinsville, va on 7/6/2013

Crutchfield Customer Review (What's this?)

These speakers have respectable sound thought they would stand lower frequencies with supposed kevlar coating, but they are ok

Pros: Pretty good sound

Cons: Kevlar made little difference with durability

great sound on this subwoofers

julio77803 from camden sc on 7/5/2013

Crutchfield Customer Review (What's this?)

This subs has a great low end and sounds absolutely great. I love how hard it hits and I have had no issues with it.




bwsrodder from Texas on 7/2/2013

Crutchfield Customer Review (What's this?)

Great sub for the price! I paid less for this sub than my local big box store sub and got the superior quality from an alpine product. Very happy with the sub.

Pros: Quality

Cons: Limited

Alpine SWE-12S4

Anonymous from New Orleans , LA on 6/8/2013

Crutchfield Customer Review (What's this?)

This has got to be the sweetest sounding sun ever!

Pros: Nice round sound

Cons: I wish I had the capacity for two of them, but I simply don't have the space

very nice

Tom P. from Folsom, CA on 6/4/2013

Crutchfield Customer Review (What's this?)

Picked this sub from Crutchfield scratch and dent. Looks perfect. Nice clean, hard hitting base. Plays upper base very nice so it has a very good sound quality. Very sturdy construction that looks really cool. Running with a sound ordinance 4 channel amp with bridged mono sub at 240 watts. More than enough power and sound to fill my car and any car next to me.

Pros: price, construction, deep clean sound

Cons: are you kidding me @ this price and free shipping....none

Very Good Sound

StevenS from Tyler, TX on 5/29/2013

Crutchfield Customer Review (What's this?)

Very well built, easy to install. Got this hooked up to a older Sony Xplod Amp and that is being fed from a Pioneer AVH P4400 Head Unit. The sound is great for the music I listen to and I can really tweak everything and make it how I like it. Would definitely recommend this to someone else!

Pros: Price, Sound, Looks

Cons: None


jc5767 from ohio on 5/26/2013

Crutchfield Customer Review (What's this?)

So good so far bought in the outlet store for pretty cheap. They are good for some added bass but aint going to shake your car or anything but very nice sound quality.

Pros: SQ,price


Alpine SWE-12S4

Kevin H from Helena Al. on 5/25/2013

Crutchfield Customer Review (What's this?)

Sound is pure and clean.

Pros: Fits perfect in the vehicle it was designed for thru crutch

Cons: Nothing as of yet.

cant beat em

Joshua A from Gaffney S.C. on 5/21/2013

Crutchfield Customer Review (What's this?)




Get it now

AustinC from Chattanooga, TN on 5/11/2013

If you are looked for an entry level sub woofer just to get your system bumping, this is the one to get. I only have one in a ported box in an SUV, and it will absolutely pound! It will take some abuse also. I originally had it underpowered, and now I am overpowering it, but it is taking it like a champ. I am currently running 380 watts rms to it, and it is doing just fine. Of course, I am careful with it and have the amp adjusted accordingly (as much as is possible when overpowering by this much power). That's all I really need to say. Another great Alpine product. Just get it.

Pros: Loud Price Quality of materials Sound Quality

Cons: None.

Alpine SWE-12S4

Anonymous from Hawaii on 5/10/2013

Crutchfield Customer Review (What's this?)

This budget friendly sub is tops for what you pay hands down. The lows come easy and power handling is superb for an entry level product. The sound quality is great. Not only does it play low & loud in a sealed setup but it hits the upper bass just as well! Not many 12's can lay claim to that in this price range. I can't imagine what alpine's higher end product would do to my ears! This is the best product out their for the price! Awesome value.

Pros: Lightweight, yet still a performer. Hits the upper bass just as well.

Cons: No grill available?

Cruthfield still #1

92 chevy from Kingston , TN on 5/7/2013

Crutchfield Customer Review (What's this?)

Alpine goes without saying. I ordered a sub box from ebay. Mistake. i ordered the sub from Crutchfield. I ordered the box 4 days before the sub. the sub from Cructhfield arrived 3 days before the box. i should have used Crutchfiled for the whole set up. Flawless transaction great products.

Pros: everything.

Cons: none.


Dave from Battlefield, MO on 5/7/2013

Crutchfield Customer Review (What's this?)

I was extremely surprised at the level of bass and the sound of these. Great sub for the price.

Pros: Sounds and Looks

Cons: None yet


javier from grand rapids mi on 5/3/2013

Crutchfield Customer Review (What's this?)

The best subs I been listened great punch awesome

Pros: great quality great price great sound

Cons: none

Alpine SWE-12S4

AC from Columbus, OH on 4/14/2013

Crutchfield Customer Review (What's this?)

You can never go wrong with Alpine...

Pros: price; great sound; no delays in the speakers sound

Cons: none

Alpine SWE-12S4

James from phoenix, arizona on 4/6/2013

Crutchfield Customer Review (What's this?)

it was my first setup of alpine and i was very pleased with the performance with that of 2 of these 12's running on an alpine mono channel v power amp. sound quality was excellent for the price.



Great sub for the $$

Jim from Charlotte, NC on 4/5/2013

Crutchfield Customer Review (What's this?)

I have been a big Alpine fan for many years, and I needed some bass for my Durango. I picked this one because I have been a big fan of Alpine sound, and this sub is exactly what I expected. I have it in a sealed box 1.0 cu size, and I am pushing it with channels 3/4 bridged at 225 watts, and it fills my suv with great deep base. In this price range I feel it is one of the best options!

Pros: Alpine name behind it, and it looks like it is built well. The bass is incredible for a single woofer running off a 4 channel amp.

Cons: NONE!!!!!

Alpine SWE-12S4

SD guy from South Dakota on 4/5/2013

Crutchfield Customer Review (What's this?)

Great sub for the price, picked it up on the outlet for $50. Cannot match it for sound to price ratio. Replaced an aging clarion sub in my wifes 350z. Hits alot harder than the old sub and looks better also. Powering it with a Sound Ordinance sub amp and they pair great. Good sound for the price.

Pros: Easy attach spring terminals for speaker leads, generally a good looking speaker. Great value.

Cons: Rubber ring that hides screw heads is a pain to get in place and does not like to stay put if bumped.

The missing link!

Mike O. from Mt. Vernon, WA on 2/22/2013

Crutchfield Customer Review (What's this?)

This sub sounds great! I am pushing it with a Boston amp bridged for 160 watts and it fills my Silverado with nice tight deep base. I replaced the stock head unit with a Kenwwood HD receiver but was not happy with the base response from the stock speakers. After getting this sub and building the recommended size sealed box, WOW, what a difference. It is what was missing from the total sound of the stereo. I am more than pleased with the end result. Buy this sub and give it enough power and you won't be disappointed!

Pros: Great looking smooth cone. Excellent value. Tight base.


Solid sub

Kevin from Greenville, NC on 1/22/2013

Crutchfield Customer Review (What's this?)

Great sub at a great price! I am running this in a bandpass box with a 250 watt amp and it hits hard and low.

Pros: Great look on top of the great sound. I particularly like the gasket on the outside to hide the screw holes, nice touch.

Cons: None

Bang for your buck!

max g from atlanta GA on 1/16/2013

Crutchfield Customer Review (What's this?)

Let me first say that i am not a pro woofer guy. i had a pair of kicker comp 12s in a sealed truck box for my 07 ranger with a cruch amp and yeah it was alright. i only got it because it was cheap from craigslist. i knew being how i am, i always like new stuff from high quality makers, that i would upgrade. little did i know if would be a week after my kicker set up :P i bought 2 of these with an alpine mrp 500 amp and a SO dual ported box. let me start by saying they build quality was exelent! the motors are way more girthy in person than in the picture. the basket was thick and strong and i really like the air port behind the motor. the only reason i took one star off of build quality was becase i felt the metal where the screw mounts were was a little week, but its not going anywere for sure. when i first hooked them up i was blown away by their sound and their SPL capabilities! holy crap! that mrp 500 powers these bad boys no problem. they arnt broken in yet so i havnt ben blasting music through em but when i do its only for a few seconds to see what they can do. One other thing i noticed was the rubber ring that covers the screw holes comes off easily and is kind of a pain to get back on but its really not that big of a deal just kind of an inconvenience when your putting something in there and it accidentally snags it. over all i would say i love this system way better than my kickers and if you want affordable bass that will impress anyone... definately go with alpine

Pros: affordable SPL and SQ, cool diaphram color/style.

Cons: nothing really worth noting.

Amazing sound quality, huge bass for little money

ZachL from Oklahoma City, OK on 12/30/2012

Crutchfield Customer Review (What's this?)

This was my first Subwoofer, and after hearing other subs, I was completely amazed at how clear the music is, considering how loud the bass is. After tuning it and breaking it in, you won't get a better sound quality for the price. It's truly a subwoofer to be proud of! I highly recommend this as a starter or mid entry level subwoofer.

Pros: Durability, sound CLARITY, nice range of bass, looks good.

Cons: the bass evens out at higher volumes, but still beats extremely hard.

big bass small price

brianh from seattle,wa on 12/11/2012

Crutchfield Customer Review (What's this?)

For the small price I was blown away by the sound.It's not even broken in yet so it'll just get better.

Pros: cost

Cons: none

Alpine Rules for Price vs What you get in Return

MgKenny from Ft. Laud., FL on 9/16/2012

Crutchfield Customer Review (What's this?)

I have used Alpine Subs (Most of them 12") EXCLUSIVELY since I used to work as an Authorized Alpine Installer 30 Years ago. It never ceases to amaze me the quality and "Grin Factor" you get for such a reasonable price with Alpine Products. I am running these in Parallel from the 5th Channel of an Alpine 5 Channel Amp (300 Watts). Again, my system sounds awesome. I also used the previous model of these (Still E-Type) in my son's pickup with the same amp and they pound there as well. I have yet to blow any Alpine sub up. They sound incredibly warm and real (Probably due to the pulp cones) and the new surrounds on them make for great excursion. Mind you, I have never overpowered any of this series of sub and as long as you keep them in the 300 +/- Watt RMS zone you will be grinning for years! Add to that the killer price you get from Crutchfield and I really can't see you going wrong. If you are on the fence with these, put them in with the idea that you will "Upgrade" at a later time and I think you will find that you will have them forever.

Pros: Price, Sound, Cool Graphics on Sub

Cons: Space for a box (But that is a factor for any good sub)

great subs!

Tyler.S from Ninnekah, OK on 6/29/2012

Crutchfield Customer Review (What's this?)

i didnt know what to expect when i ordered these because no one had written a review on them,but i got them today and wow they are a huge upgrade from the two old memphis's i had in there before and there not even broke in yet

Pros: everything

Cons: i havent found any yet


Hands-on research

Product Research

Enclosure Compatibility


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

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

Progressive Spider: The progressive Conex spider ensures reliability and helps avoid interference typical of many high-excursion designs.

Voice Coil: The oversized (65mm) 3-layer voice coil offers power handling up to 250W RMS / 750W Peak. The high-temperature voice coil is wound on a spiral cut aluminum former.

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

Airflow Management System: Alpine's patented Airflow Management System combined with Perimeter Venting actively manages the outer voice coil temperatures by forcing air directly across the heatsink system.

Vented Pole Piece: The vented pole piece is flared at both ends to maximize air flow from inside the motor structure. The Airflow Back Plate combined with the Compound Radius Curve Extended Pole Geometry ensures that hot air is not trapped inside the motor structure.

Spring Terminals: The spring post terminals are located on one side of the woofer. The terminals will accept pin connectors, single banana plugs, dual banana plugs (with standard 3/4" width), or bare wire up to 8 gauge.

Gasket Cover: Alpine uses a Concealed Mount Gasket System to cover the mounting screws for a clean look. The black rubber gasket ring comes already installed on the woofer and needs to be removed before installing the mounting screws (not supplied). The gasket ring then snaps back into place once the woofer is mounted.

Enclosure Compatibility

Sealed Box: Alpine recommends a sealed enclosure with an internal volume between 0.69 and 1.04 cubic feet, with an ideal volume of 0.9 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 1.04 cubic feet to 1.54 cubic feet, with the ideal size being 1.45 cubic feet, using a slot port measuring 12.5" (W) x 1" (H) x 18" (L). This recommended enclosure has a tuning frequency of 36 Hz.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.