American Sound Connection ASC GM2X12AVECL Compatible with Chevy Silverado or GMC Sierra HD Crew Cab Truck 2002-2013 Dual 12" Subwoofer Underseat Sub Box Speaker Enclosure
Condition: New
$139.94
Save $9.06
was $149.00
Buy Now, Pay Later
As low as
$23.32
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, Nov 7
Recently Viewed
At a glance
- Condition
- New
- Model
- GM2X12-AV-ECL-US_2
- Weight
- 30.3 lb
- Color
- Black
- Audio Output Mode
- Stereo
- Mounting Type
- Under Seat
- Enclosure Material
- Engineered Wood
- Works with
- Vehicle Audio System
Features 5
- BUILT WITH FINE DETAIL: The ASC GM2X12-AV-ECL-US_2 is constructed with precision and durability in mind. It features a high-grade construction that ensures long-lasting performance. The enclosure is crafted from sturdy and robust materials, making it capable of withstanding the demands of powerful subwoofers and the rigors of daily use.
- AUDIO EXCELLENCE: This enclosure is engineered for optimal sound quality. Its design, size, and internal air volume are all carefully calibrated to maximize the performance of your dual 12-inch subwoofers. With this enclosure, you can expect deep, punchy bass and improved overall audio clarity. Whether you're playing your favorite music or enjoying a cinematic experience on the road, this enclosure enhances the bass response and adds depth to your audio.
- CUSTOM FIT: The GM2X12-AV-ECL-US is meticulously designed to fit seamlessly into 2002-2013 Cadillac Escalade EXT models. It maximizes available cargo space while preserving the aesthetics of the vehicle's interior. This enclosure is expertly configured to house two 12-inch subwoofers, providing a substantial amount of surface area to move air and produce deep, resonant bass notes.
- DIMENSIONS: Width 48" x Height 6" x Depth 16-3/4"
- ADDITIONAL ITEM SPECS: Mounting Depth of 4.50" making it compatible with the majority of 12" subwoofer and a total Air Space of 0.48 Cubic Feet for increased output
Description
Adding bass to a truck can be a very complicated problem to tackle, especially when building a box! We offer pre-built enclosures that are ready to be dropped into your 2002-2013 Chevy Avalanche that offers unbeatable performance and sound quality that simply cannot be matched. This is a dual 12" up firing model enclosure. You will not only see a difference in the quality of the boxes we build, but you will hear the difference and that is what is it is truly all about. Our boxes are made from precision cuts of MDF. They are then liquid nailed, nailed and completely sealed. We then wrap them with high quality carpet that matches most vehicle interiors. All Boxes feature high grade spring loaded terminal cup(s) for the absolute best connection possible. All the custom series enclosures are made to fit precisely into your 2002-2013 Chevy Avalanche to the get the max performance from every extra inch of wasted space. Specifications:
Specs 31
| Brand | American Sound Connection |
|---|---|
| Speaker Maximum Output Power | 300 watts |
| Connectivity Technology | wired |
| Audio Output Mode | Stereo |
| Mounting Type | Under Seat |
| Enclosure Material | Engineered Wood |
| Speaker Type | Subwoofer |
| Additional Features | Bass Boost |
| Antenna Location | truck |
| Subwoofer Diameter | 12 inches |
| Color | Black |
| Is Waterproof | FALSE |
| Warranty Type | Limited |
| Control Method | Touch |
| Speaker Size | 12 inches |
| Woofer Diameter | 12 inches |
| Specific Uses For Product | truck |
| Controller Type | Corded electric |
| Connectivity Protocol | wired |
| Power Source | Corded Electric |
| Model Number | GM2X12-AV-ECL-US_2 |
| Model Name | ASC GM2X12AVECL |
| Built-In Media | Assembly Instructions |
| Number of Items | 1 |
| Customer Package Type | FFP |
| Manufacturer | American Sound Connection |
| Item Dimensions D x W x H | 7"D x 18"W x 7"H |
| Item Weight | 30.3 pounds |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 12 inches |
| Number Of Circuits | 1 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 7
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
don't always believe what you read, LOL
while deciding whether or not to buy this product, I read every single review on this site. the biggest percentage of the reviews were either not good, or completely negative. I am happy to say I paid no attention to the negative reviews and went ahead and ordered this product. I have a 2003 GMC Sierra 3500 crew cab, and it absolutely fits perfect. the reviews about the speaker wires getting hit by people's feet, I cannot understand because when installed correctly the speaker wires are facing the rear? the only thing I can think is maybe the manufacturer has changed the design of the box because the speaker wire inserts are perfectly located. the manufacturer definitely used every single square inch available, while still having a snug fit. it sounds awesome. another thing is I assumed and I believe that there were several comments that they are down firing , they are not they are up firing. also someone said that the weight of a passenger would be mashing against the subwoofer, this too is untrue, the underside of the seat on this vehicle is empty so the only thing that is rubbing against the sub is carpet. I give this product 5 stars and will absolutely buy again. the box is definitely high quality and built with good materials and is very sturdy. I was impressed especially with the price being so cheap. if you have a similar vehicle to mine... you will not be disappointed.
...
show more
Reviewed in the United States on July 6, 2018 by Shane on ur side
Doesn’t fit.
Doesn’t fit the 2007 Chevy crew cab. I’ve made modifications to my truck in hopes to get it to fit better but it’s still just not working. And once I do manage to close the seat, the box is set at an angle and won’t allow the other side to close. The seat that does go down has a piece of its metal frame that comes in contact with the ring on top on the hole. That means even if I manage to modify the truck to get the sub box to fit, I won’t be able to put a subwoofer in it because the seat will break it as soon as someone sits on it. So many things wrong, nothing going right.
...
show more
Reviewed in the United States on May 21, 2022 by Alan
Exactly what I was looking for
Fit like a glove
Reviewed in the United States on July 3, 2026 by Stephen Souza
It fits, I promise.
So for starters, as many have stated, this box does fit pretty tight. However, many say it doesn't fit in HD trucks, this is not true. I installed it in my 06 Gmc Sierra 2500hd crew cab. When I first set it down, I was like "dang, I must be among the unlucky ones who's box wont fit", but im stubborn and refuse to be defeated by a stupid sub box.... I was considering grinding down my seat brackets in the corners where it seemed it wasnt going to fit, but after assessing the situation more, I had to wiggle it around quite a bit, lift different spots of the box to get it to drop down, and I had to persuade it with a little force. Eventually I got it to sit snug all the way to the floor on both sides, and middle. I gave it 4 stars, as the finish and build quality of the box is pretty dang good, knocked off a star for having to rip up the carpet on the side of the box from such a tight squeeze on the seat brackets. The seats are able to latch all the way without interfering with the subs themselves. I was concerned with my sub fitment, as the specs state 4.5" mounting depth, and my Alpines are 5" & 5/16" mounting depth, but even after i stuffed the box with polyfill, they still sat down with very little room to spare from the magnet to the bottom of the box. I can't review sound quality as of yet, since my entire audio system is torn apart currently, and being revamped.
...
show more
Reviewed in the United States on March 11, 2026 by Tubeofpaste
Does not fit regular duty trucks
I drive a 2004 Silverado 1500. The box did not fit my pickup. My only guess is that it was because it was not an HD truck, so I can’t give an honest review as to if it fits or not. It is advertised for HD trucks, but I didn’t think it would affect it much. When I tried putting it in one side would lock in to place, and the seats wouldn’t close. If I tried to force it shut the box would move diagonally, and wouldn’t allow the other side to shut. I’m sure with some extra modifications it could work, but in my opinion it isn’t worth the extra hassle. I do not recommend this box for trucks that aren’t Heavy Duty.
...
show more
Reviewed in the United States on March 19, 2024 by Amazon Customer
Good box for 12s
Perfect box. Took some beating to fit but is very snug sounds more like a potted box just not quite as deep great box great price for my truck
Reviewed in the United States on July 9, 2018 by Robert Geiser
Doesn’t fit in the layout properly.
Okay box but doesn’t fit right. The line up between the ends to fit in between the seat brackets underneath isn’t good. Shoving it in and tweaking it to fit isn’t cool. The seats lay down right on top of the speakers so they sound ugly. I had to put some thick lags in the framing, where the latch to the seat clicks in place, to hold the seat up 2 inches so it wouldn’t sit right on the speaker. We’re gonna ask for a picture now. I didn’t say follow me.
...
show more
Reviewed in the United States on May 6, 2025 by Cecilia Rivas
High quality, matched with excellent customer service
Very high quality box and even better customer service. They contacted me to make sure i was happy and i am very happy with this purchase. Very few and slight modifications had to be made to my seats to make it fit in my 2003 avalanche but it was a VERY close fit, my shallow p3’s fit great under the seat. Truly awesome setup for an even better price!
...
show more
Reviewed in the United States on November 21, 2018 by Michael Thornton