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Alpine SWS-1223D

Type-S 12" subwoofer with dual 2-ohm voice coils

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  • Alpine SWS-1223D

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  • Alpine SWS-1223D

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Item #: 500SWS1223
 

Review Summary

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Our take on the Alpine SWS-1223D

by Dominic Devito
Alpine

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Alpine Authorized Online Dealer

You'd like to fit a monster subwoofer in your pickup or compact car, but you just don't have the room. Alpine's got the solution for you. The Type-S SWS-1223D 12" subwoofer stands only 5-1/16" tall, so you can fit realistic bass in tighter spots without giving up an ounce of sound quality.

Alpine starts with a one-piece pulp/glass fiber cone, reinforced with Kevlar® for uncompromising strength and accurate response. The tapered Santoprene™ rubber surround extends cone excursion and improves dynamics, so you can rock your Type-S subs without fear of a blowout. Advanced engineering gives you top performance while shaving 1-1/2" from the mounting depth of their previous Type-S 12" subwoofer.

Alpine builds the speaker leads into the spider, so they can't shake loose during extreme cone movement. A network of cooling vents reduces heat-induced distortion, so you can push your music and leave the meltdown worries behind. The dual 2-ohm voice coils give you more options for tweaking your bass, whether you're looking to wire up a multi-sub system or draw more power from your amplifier.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most 2-channel car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation. Most mono amps are stable down to 2 ohms.

See more info on this item

Highlights:

  • 12" subwoofer with dual 2-ohm voice coils
  • pulp/glass fiber cone reinforced with Kevlar
  • Santoprene rubber surround
  • power range: 50-300 watts RMS (150 watts per coil)
  • peak power handling: 900 watts
  • frequency response: 27-700 Hz
  • sensitivity: 86 dB
  • top-mount depth: 5-1/16"
  • sealed box volume: 0.85-1.5 cubic feet
  • ported box volume: 1.25-2.0 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per speaker



Note: Sorry, Crutchfield cannot ship Alpine products to Guam or Puerto Rico.

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Size
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12 -inch
Impedance
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2 ohms
Cone Material
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Glass Fiber & Pulp/Kevlar
Surround Material
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Santoprene rubber
Ideal Sealed Box Volume (cubic feet)
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1.25
Ideal Ported Box Volume (cubic feet)
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1.55
Port diameter (inches)
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N/A
Port length (inches)
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N/A
Free-Air
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No
Dual Voice Coil
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Yes
Sensitivity
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86 dB at 1 watt
Frequency Response
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27 - 700 Hz
RMS Power Range (Watts)
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50-300
Peak Power Handling (Watts)
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900
Top Mount Depth (inches)
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5 1/16
Bottom Mount Depth (inches)
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N/A
Cutout Diameter or Length (inches)
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10 11/16
Vas (liters)
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61
Fs (Hz)
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30
Qts
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0.6
Xmax (millimeters)
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12.9
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • 12" Subwoofer
  • Rubber screw cover gasket
  • Two 3" Speaker wire jumpers (with banana plugs on both ends)
  • Type-S subwoofer application guide
  • Warranty card
  • Customer Care Registration card
  • Important Notice (concerning installation guidelines)

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 open the box, verify contents, 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.

Features
Specifications

Features

Kevlar Reinforced Cone: This Alpine Type-S subwoofer has a Parabolic Glass Fiber and Kevlar reinforced Pulp cone. Kevlar adds strength and tear resistance to the woofer cone while maintaining the benefits of a pulp cone design.

Santoprene Rubber Surround: The high-excursion Santoprene rubber surround is durable and resistant to the elements, resulting in very reliable performance. The surround is specially designed to resist deformation that is common in most woofers with wide surrounds. This design gives the surround more control over the woofer cone to reduce distortion and possible driver failure.

Screw Cover Gasket: The woofer includes a rubber gasket to cover the screw holes for a clean look. If the gasket isn't installed, the mounting height is only 0.75 inches.

Dual 2-ohm Voice Coils: The SWS-1223D features dual 2-layer voice coils which utilize 180°C high-temperature wire and a glass fiber former. Dual voice coil woofers offer flexibility in wiring. When the voice coils are wired in parallel, the woofer presents a 1 ohm mono load. When the voice coils are wired in series, the woofer presents a 4 ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 2 ohm load.

Spring Posts: The woofer has two pair of spring posts which will accept pin connectors, banana plugs, and up to 8 gauge bare wire. All four speaker terminals are located on one side of the woofer to make it easier to connect the woofer in a parallel or series configuration.

Wire Jumpers: The woofer is equipped with two 3" speaker wire jumpers with banana plugs on both ends. These jumpers allow you to wire the voice coils in parallel (for a 1-ohm load) or series (for a 4-ohm load).

Progressive Nomex Spider: This subwoofer has a progressive Nomex spider for added stability and mechanical durability. The custom progressive rolls give the woofer a longer, more linear stroke with maximum centering and restoring force. Special edge control design and Nomex construction provide excellent tear resistance, strength and long-term reliability. The tinsel speaker leads are integrated into the spider.

Steel Basket: The high strength custom steel frame is vented around the perimeter for extra cooling.

Bumped Back Plate and Extended Vented Pole Piece: This woofer combines a bumped back plate and an extended pole piece, giving it a 2" peak-to-peak cone excursion. This extra long cone movement provides a higher bass output. The vents and dual flared design of the pole piece maximize airflow around the voice coil, giving it a more reliable performance.

Specifications

Sealed Box Volume: The sealed box sizes recommended by Alpine range from 0.85 cu/ft to 1.5 cu/ft. The ideal recommended volume is 1.25 cu/ft.

Vented Box Volume: The vented box sizes recommended by Alpine range from 1.25 cu/ft to 2.0 cu/ft. The ideal recommended volume is 1.55 cu/ft with a 1" x 12" x 17" (long) slot port.

Bandpass Box: The manual also mentions using a bandpass enclosure, but gives no volume recommendations.

 
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Alpine SWS-1223D Reviews

Average Customer Review:

9 people say:

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Filter by rating:
5 out of 5

Alpine SWS-1223D

Written By Anonymous, champaign, il on Wednesday, May 21, 2014
Crutchfield Customer Review (What's this?)
 
pretty nice sub for what i needed it for
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
3 out of 5

"OK"

Written By David, California on Wednesday, December 07, 2011
Crutchfield Customer Review (What's this?)
 
(See my pros/cons) It's a pretty decent speaker and I'm hoping that I just got a speaker with sub-par craftsmanship as a fluke b/c alpine is a reputable brand. I have it hooked up to the recommended alpine m500 amp so I wasn't under or over powering the subwoofer. Lucky for me I purchased from crutchfield because they will replace it at EVERY convenience to me. Needless to say I will not be purchasing a sub from another company. Very happy with the crutchfield service. I will give another review after several months with the new subwoofer and let you know how it went.
Pros:
I liked the price and the way it looks. The sound quality is not amazing, but its definitely good.
Cons:
My biggest issue I have with this speaker is that a couple weeks before the warranty (1 year) was up one (or both) voice coils went out and it gives a horrid rattling sound.
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Bummpin

Written By GJack, Houst,Tx on Monday, August 29, 2011
 
Just put 2 of thess in a Pro Box under the back seat of 2008 GMC Sierra crew cab....my first subs.These subs are thumpin. I would highly recommend.
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5 out of 5

WHAT A DIFFERENCE!!!

Written By Anonymous, Murfreesboro, TN on Saturday, May 08, 2010
Crutchfield Customer Review (What's this?)
 
I used to have 2 Jensen 10's, but now I have just one of these subs and it totally smokes the Jensen (duh!) I have this Alpine hooked up and bridged in my Honda Civic to my Kenwood Excelon 800W amp (300RMS), and it is just perfect! I would highly recommend this sub for anyone looking to hear some really clean bass that pounds for any style of music.
Was this review helpful?    Yes | No
 
5 out of 5

I Love It

Written By Cuban, Florida on Saturday, March 21, 2009
 
i have had these speakers for bout 3 to 4 yrs now at 1st i had a 460w Dual amp for it an that wasnt enough i went a higher an built a box for them i now have them with a sony explode 1000w amp an a box desinged by the specs in the bock they send u the only thing is i didnt put a center so now there fightin each other but other than that there kickin hard i turn my radio up all the way an i loose power 2 my whole car so i go down the road lookin like the cops lol..........but i rate these subs at there highest for the price an the power......
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4 out of 5

Good Starter setup

Written By Bryce, Greensboro, NC on Monday, January 26, 2009
 
I just put these subs into a Dodge Ram and they really do the job. I wrote this review because you cant find many reviews or videos online. They are very clear at lower volumes but distort very slighty at higher volumes, which is the reason I gave it a 4 out of 5. I have them powered with a MRP-500 and trust me 500 watts is all you need. They do great with different types of music too. Im a big rock and country fan and these really make those songs sound better. These subs are well worth the price.

Pros:
Very clear
Pretty loud

Cons:
Distorts a little at high volumes
3 out of 3 people found this helpful
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4 out of 5

Good for the Price

Written By Mike, W Jefferson, OH on Sunday, April 27, 2008
 
I have purchased 2 of these 2 ohm 12's an running Alpine MRP-M650 in a
sealed box. I've burnt 3 voice coils in doing so. It's a big amp but it has
been killing them. I recommend these but not for high powered amps. I
currently have 2 different models of these speakers. Since they redesigned
the cone from a shiny silver to a stealth black kevlar. I don't care how they
look as long as they shake the ground as a pass over it!
2 out of 6 people found this helpful
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4 out of 5

Pros and Cons

Written By Zane, Minnesnowta on Monday, July 16, 2007
 
I bought two of these not too long ago and put them into a huge ported box custom made. I have them runnin from an infinity 611 amp, they bump decent but having them in a ported box makes them a bit sloppy and the sound quality isnt the greatest but overall pretty satisfied, at the price i dont think there are many that can match
Was this review helpful?    Yes | No
 
5 out of 5

WOW

Written By Finger, Hickory, NC on Thursday, May 10, 2007
 
I just put these in myself tonight, and wow. I baraly turned up the volume with a stock radio, and my mirror fell off.

Deff a great buy!!!!!
40 out of 56 people found this helpful
Was this review helpful?    Yes | No
 

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For a more in-depth review and enhanced detailed information on the Alpine SWS-1223D, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_500SWS1223/Alpine-SWS-1223D.html ).