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Alphasonik

Alphasonik AS120A 12" 1500 Watts with a Built-in Amplifier Down-Firing Shallow Mount Enclosed for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure

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Availability: In Stock.
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Arrives Thursday, Sep 25
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Size: 12 Inch 1500 Watt Active


Features

  • POWERFUL SUBWOOFER: Experience the Alphasonik AS120A's 12" Shallow Active Downfire Subwoofer that brings every beat to life with a peak power of 1500 watts and RMS of 500 watts. The Downfire Subwoofer Box, with a final impedance of 4 Ohms and a sensitivity of 90dB, ensures an immersive audio experience that's hard to match.
  • BUILT-IN AMPLIFIER: Experience the all NEW AS120A Active down-firing Subs with a built-in 500 Watt / 1500 Watt MAX amplifier. The Truck Subs deliver a sound output that is clear, crisp, and loud, featuring Hi and Low level inputs, crossover, 0-+12dB bass boost, solid nickel plated power terminal blocks and a remote bass knob.
  • QUALITY CONSTRUCTION: Rely on the quality construction of the Car Subwoofer, featuring a Spun Aluminum Cone, Rubber EPDM Surround, and a Copper Wound Kapton Voice Coil. The Small Sub Woofers for Cars not only ensure durability but also enhance the sound quality with MDF Construction and Industrial Strength Carpet.
  • COMPACT DIMENSIONS: Fit the compact dimensions of the Sub Woofer Systems into tight spaces in cars and trucks, measuring 21 x 7 x 14 inches or 534mm x 178mm x 355mm (WxHxD). The Sub and Amp Combo can be mounted vertically or horizontally, making it a perfect fit for a wide range of vehicles.
  • CUSTOMIZABLE AUDIO: The Subwoofer 12 Slim allows you to customize your audio experience with the Low Pass Crossover ranging from 50Hz to 200Hz, and a Bass Boost of 0 to +12dB. With the 12in Sub, you gain complete control over the sound output through the inclusion of Hi & Low Level Inputs, Solid Nickel Plated Terminal Blocks, and a Remote Bass Knob.

Brand: Alphasonik


Speaker Maximum Output Power: 1500 Watts


Frequency Response: 50.2 Hz


Connectivity Technology: Active


Audio Output Mode: Mono


Input Voltage: 12 Volts


Mounting Type: Flush Mount


Material: MDF Wood


Model Name: Active Shallow Mount Down Fire Sealed Enclosure


Speaker Type: Subwoofer


Special Feature: Remote Bass Knob


Recommended Uses For Product: For Mobile Audio


Compatible Devices: Projector, Laptop, MP3 Player, Desktop, Television, Tablet, Smartphone


Subwoofer Diameter: 12 Inches


Unit Count: 1.0 Count


Controller Type: Remote Control


Surround Sound Channel Configuration: 1.0


Included Components: 12" Active Down Fire Shallow Mount Enclosure, Mounting Brackets, Remote Bass Knob, Owner's Manual


Product Dimensions: 14"D x 21"W x 7"H


Item Weight: 28 Pounds


Impedance: 4 Ohm


Is Waterproof: False


Warranty Type: 1 Year Manufacturer


Number of Items: 1


Control Method: Remote


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 12 Inches


Vehicle Service Type: Car, Truck


Customer Package Type: Standard Packaging


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA, Speaker-Level


Includes MP3 player?: No


Number Of Circuits: 1


Number of Power Levels: 13


UPC: 810109980147


Style: 12 Inch 1500 Watt Active


Global Trade Identification Number: 47


Manufacturer: Alphasonik


Item Weight: 28 pounds


Item model number: AS120A


Date First Available: February 21, 2023


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great Bass for your Buck
Size: 10 Inch - 1200 Watt Active
This unit is an absolute excellent product. It provides a substantial amount of Bass to be in such a small contained package. It is very nice looking aesthetically. It provides an excellent amount of low end in a three door coupe, and other vehicles as well. I will definitely be purchasing more of this unit for my car audio business ... show more
Reviewed in the United States on June 30, 2025 by J. Trenthem
    • Great results from a slim sub
Size: 8 Inch - 600 Watt Passive
I waited a year to write this review in order to be fair in my assessment and to also be able to speak to the durability of the product. I installed this sub in a Jeep Wrangler and powered it with a Rockford 5-channel amp that is also powering four 6.5s. I didn't want to take up a lot of space in the cargo area with a huge box and I really just wanted to round out the low end; I listen to a lot of classic rock and reggae so I was not looking to shake any windows since only about 10% of what I play falls within the rap or hip-hop genres. Initially, I was pretty underwhelmed with this sub - the first couple weeks gave me average performance at best and I did also experiment with some bass-heavy R&B just to see how it would perform. With the R&B, it produced a dull thud-like sound and with the classic rock, it really didn't sound very good when turned up loud enough to make a difference. But over the next month or so, it started to loosen up and sound more musical than noisy, and after about 3 months of moderate use, I became very happy with it. Again, I was not looking for club-quality bass, I just wanted to add some depth. That being said, it also performs very well now when I pop in some rap or hip-hop. Not a competition sub by any means, but I find myself needing to turn down the bass level for these genres. When the doors and top are off the Jeep, I'll adjust the bass knob a little higher and it is sounds great, even above the wind noise. My bottom line with this sub is that it is an excellent choice for anyone who wants to add nice tone to the lower end of the spectrum. It takes up a surprisingly small amount of space for a 10-inch, and i feel it is a bargain at this price point. The construction of the box itself is also very solid; it's had sports equipment, lawn supplies and such thrown on it, placed on it, been covered with it and a year later, it's no worse off than the day I got it. If you give it time to work itself in, you'll be happy. ... show more
Reviewed in the United States on May 23, 2014 by Dave
    • Great
Size: 12 Inch 1500 Watt Active
Great sound for the price. It's super convenient and very small for the actual sound that it comes off. Lots of power for the size. Quality build is also very sturdy. Best feature is that the amp is already in it.
Reviewed in the United States on February 21, 2025 by Jean Z.
    • Good but it got better!
Size: 8 Inch - 600 Watt Passive
Review Image by Francisco Sanchez Francisco Sanchez
This review is more so for the box. As my speaker arrived damaged. Bought this for use in my 2007 Mazda MX-5 Miata. Actually mine was a warehouse deal. Original box and hardware was there. The problem was the sub. It sounded okay at low volume but once I got 1/4 past volume, you could tell that something was wrong (more on that in a bit) Before I returned it. I had an idea.... So I put it on my bench. Removed the screws. Took the sub out. Box was pretty dirty inside but nothing a some compressed air couldn’t take care of. Examining the sub, it had a dragging sound when the cone was pushed. Chances are the previous owner blew the sub and returned it. Yeah..... but the box is what I really wanted. So I did some homework and put in a different woofer. Enter the kicker compRT. It fits nicely with room to spare! I also added some polyfil inside the box. Now this little 8 comes alive in the foot well. Keep in mind that even from the stock set up, this is not going to rattle windows or annoy neighbors. It does a good job of being small and filling in the low end void of dash/door speakers. Running this now at 2 ohms with a sound ordnance m350.1. Once gains and crossover were set, this box and sub combo is very tight and accurate. Box is small enough to fit in many applications. ... show more
Reviewed in the United States on February 21, 2021 by Francisco Sanchez Francisco Sanchez
    • Works and does it’s job
Size: 10 Inch - 1200 Watt Passive
Perfect for a sedan and sound quality isn’t bad at all would highly recommend have had it for over 6 months now and haven’t had any issue what so ever…install was easy if you know a little about wiring
Reviewed in the United States on February 19, 2025 by matt
    • Sounds great, Smells horrible
Size: 10 Inch - 1200 Watt Active
Fit under the back seat of my 2020 1500 crew cab. Sounded great and could feel the bass from the driver's seat. Had to return it because of a terrible fish smell.
Reviewed in the United States on April 24, 2025 by Parker
    • Nice tight bass for my non Bose 2019 Chevy Silverado
Size: 10 Inch - 1200 Watt Active
Review Image by Roberto Vasquez Roberto Vasquez
Review Image by Roberto Vasquez Roberto Vasquez
Review Image by Roberto Vasquez Roberto Vasquez
I like how compact and powerful this 10” powered subwoofer is . I felt that my non Bose stereo on my 2019 Chevy Silverado needed a little more bass and this helped it so much . Very happy with my purchase , well made and very easy install with the t harness and lots of YouTube videos on how to install. I recommend it to anyone who is looking for a nice powerful sub to enhance your stock stereo!!! ... show more
Reviewed in the United States on October 22, 2024 by Roberto Vasquez Roberto Vasquez
    • Lasted 2 months
Size: 12 Inch - 1500 Watt Passive
We bought a AS12DF 12" under seat sub on 8-15-2024 and it played well for 2 months. The sub box is well built, but the driver is cheap and vibrates loudly intermittently. This is a defect of the speaker. We have tried to email support and call, no response. Buyer beware as once the return window closes on Amazon, it seems like your stuck with it. They claim to have a 1 year warranty, but if they don't respond what good is it? ... show more
Reviewed in the United States on November 25, 2024 by JK

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