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Alphasonik PSW912

Dual 2 ohm 12" Mayhem 900 Series Subwoofer

4.7

(11 reviews)

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The product on this page is discontinued.

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • PSW912 Mayhem 900 Series Dual 2 ohm Subwoofer
  • Power Handling:
    • RMS: 2200 watts
  • Cast Aluminum Machine Cut "Alpha" Basket
  • Motor Assembly Heat Sink
  • Ultra Light 2-Layer Carbon Fiber, Kevlar Cone with Aluminum Dust Cap
  • New TLTF J-Surround
  • Flat Progressive Rate Nomex Damper with Spiral-Woven Leads
  • 8 Guage Lug-Lock Input and Output Terminals
  • Sensitivity: 93 dB
  • Frequency Response: 45 - 900 Hz
  • 200 oz. Triple Stacked Magnet
  • 3" Voice Coils
  • 1-year SonicElectronix.com warranty
Subwoofer Specifications
Subwoofer Size12"
Peak Power HandlingN/A
RMS Power Handling2200 watts
Voice Coil(s)Dual
Impedance (Per Voice Coil)2 ohms
Frequency Response45 - 900 Hz
Sensitivity93 dB
Xmax (millimeters)14.5 mm
Subwoofer DesignRound / Circle
Main Cone ColorBlack
Woofer CompositionKevlar Fiber
Woofer SurroundHigh-Tensile Foam
Subwoofer GrilleNo
Re-Cone Kit AvailableNo
Recommended Enclosure Specifications
Recommended Enclosure TypeSealed
Minimum Sealed Box Volume.75 cubic feet
Maximum Sealed Box Volume1.25 cubic feet
Minimum Ported Box VolumeN/A
Maximum Ported Box VolumeN/A
Top-Mount Depth11-3/8"
Cutout Diameter10-3/4"
Shallow Mount InstallationN/A
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Alphasonik PSW912
Average Customer Rating is 4.7 out of 5 stars:
4.7
based on 11 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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82%
4 star:
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9%
3 star:
.
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9%
2 star:
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0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.5
Value
4.5
Features
4.7
Design
4.9
Usability
4.9
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
January 5, 2010 WOW!!!!!!
1 of 1 people found the following review helpful:
Review by
Craig K from Lawrenceburg, TN
Overall
Durability
Value
Features
Design
Usability
i have owned 1 of these subs i had it in a custom built box tuned at 30 hertz and it played all the way down to the lowest notes u could throw to it!! i had 1500 watts rms running at 1 ohm and was hitting 142.6 DB tested by a local car audio shop! that other guy just didnt know what he was doing! i am a certified installer and greatly recommend these subs!!!!!!!
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September 18, 2009 I don't know what other reviewer was talking about.
1 of 1 people found the following review helpful:
Review by
Brad F from Roxbury, PA
Overall
Durability
Value
Features
Design
Usability
I have 2 of the PSW912 (and I have owned them for over a year now). I think the other reviewer was probably either under powering them or simply abusing them...not to say I don't put them through torture, but these things are insane. I have 2 Alphasonik PMA1200DA, 1 connected to each at 1 ohm each amp and I get compliments all the time. The bass is unbearable at full volume (it's that loud) and if I go to the golf course with it up even at 50% they complain inside the clubhouse about it.
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August 29, 2009 Alphasonik Mayhem
1 of 1 people found the following review helpful:
Review by
stuff from Cordova TN
Overall
Durability
Value
Features
Design
Usability
Great sub and it's very loud but it didn't last very long though and if you played it hard you could smell the voice coil burning all the time. I only had about 1800 watts going to it with about 8v of line drive.

I wouldn't purchase another one being that the frequency response isn't very low and it burned up pretty quick.
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March 4, 2011 Excellent choice
Review by
axion from New York
Overall
Durability
Value
Features
Design
Usability
I have a pair of these subs installed in my car for almost 2 years now and they really worth the investment. They hit very hard and nice. I receive a lot of compliments all the time. They are very loud and shakers. I recommend these subs 100%. I am purchasing another pair of these subs this week, for my 2nd car.
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February 11, 2011 PSW 912 Review
Review by
Boxcar from Barrhead, Alberta, Canada
Overall
Durability
Value
Features
Design
Usability
I own 1 of these woofers in a nicely tuned ported enclosure. I am running a Soundstream Tarantula 2000D to it and its not bad. I'm not ecstatic with its performance for the specs it gives. I can always smell the fragrant aroma of burning voice coils in the air, and truthfully have already started the search for its replacement. I have only ran this woofer for 1 summer. If your operating on a low budget, this might be a good woofer for you. If you got the money to splurge, do the research and invest in something better, thats what I am doing. Amplifiers and all are going to be changed back to my old school RF Power series amps (1100a2/800a4). They just don't build em like they used to.
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View All 11 Reviews for Alphasonik PSW912
Empty Enclosures
Every subwoofer needs an enclosure to mount in and these high quality boxes are perfect for your new woofer! After a quick installation, you'll be ready for some real bass in your car!
 ProductPriceAdd?
Sealed Subwoofer EnclosureSealed Subwoofer Enclosure
Single sealed 12" subwoofer enclosure made from 3/4" MDF construction and covered in black carpet.
$24.99
Sealed Subwoofer EnclosureSealed Subwoofer Enclosure
Dual sealed 12" enclosure made from 3/4" MDF construction and covered in gray carpet.
$24.99
Subwoofer Grilles
Protect your subwoofer while making your enclosure look great! These subwoofer grilles are the perfect addition to your new subwoofer.
 ProductPriceAdd?
12" Universal Subwoofer Grille12" Universal Subwoofer Grille
Protect your subwoofer with this aluminum grille that is simple to install.
$9.99
Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
 ProductPriceAdd?
24.6 ft. of 10 AWG Monster Cable 400 Series Speaker Wire24.6 ft. of 10 AWG Monster Cable 400 Series Speaker Wire
For the ultimate connection, Monster uses a MultiTwist™ construction, a Magnetic Flux Tube, and even more cutting edge wire technology.
$50.00
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$19.99
20 ft. of 12 AWG Kicker Speaker Wire20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.
$24.99
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Extreme Bulk PackDynamat Extreme Bulk Pack
36 ft. Dynamat Xtreme Bulk Pack enhances the sound for your entire car!
$149.99
Bass Reconstruction Processors
These sound processors are perfect for enhancing the lower frequencies of a car audio system. After some installation and tuning, your new system will sound better than ever!
 ProductPriceAdd?
The Epicenter by AudioControl (Gray)The Epicenter by AudioControl (Gray)
The original bass booster expander with included remote will enhance the bass of your new system.
$149.99
Maxxsonics MX-3Maxxsonics MX-3
Enhances the bass response, increases linearity, buffers unwanted noise, and improves the frequency range of your subwoofer.
$59.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!
$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: Alphasonik
Model number: PSW912
UPC: 820291002572
Weight: 42.00 lbs
Internal SKU: psw912
Internal product ID: 7072
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Customer Testimonial

I have purchased electronics from this store over a six months period and I can say there very efficient and the staff are always courteous I can say this is my favorite online store and will always keep shopping here.

- screechie from Tortola, VI

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