15" Subwoofer Box Single Vented Empty Unloaded Sub Enclosure Harmony Audio
Condition: New
$173.95
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Extended holiday returns
Returnable until Jan 31, 2027 Learn more
Returnable until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027
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.
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Availability:
In Stock.
Arrives
Monday, Nov 16
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At a glance
- Condition
- New
- Model
- HA-BV1X15E
- Weight
- 53.6 lb
Features 5
- DURABLE CONSTRUCTION: Built with durability in mind, the HA-BV1X15E features a robust build that withstands the rigors of the car environment, ensuring longevity and consistent high performance. With an empty and unloaded design, users have the flexibility to choose and install their preferred 15" subwoofer, providing control over the customization of their car audio system.
- OPTIMIZED ACOUSTICS: Enjoy enhanced sound quality with the Custom Designed Vented Port, providing optimal airflow for your subwoofer in a Compact Design that's ideal for trunk installations. The vented port design contributes to an enhanced bass response, delivering deep and resonant low frequencies that add a new dimension to your in-car listening experience.
- UNIVERSAL FITMENT: The HA-BV1X15E Single 15" Sub Box is designed with universal fitment in mind, making it compatible with a variety of 15" subwoofers for a versatile audio setup. This enclosure is empty and unloaded, providing flexibility for users to choose and install their preferred 15" subwoofer, allowing customization based on individual audio preferences.
- VENTED PORT DESIGN: Featuring a vented port design, the enclosure optimizes bass response by facilitating air movement, resulting in a more pronounced and impactful low-frequency output that adds depth to your in-car audio experience.
- ADDITIONAL ITEM SPECS: The empty single 15" vented sub box, with a weight of 53.55 pounds and dimensions of 24.7" x 21.2" x 18.6", provides a versatile and sturdy enclosure option for audio setups.
Description
Harmony Audio proudly introduces you to our HA-BV1X15E sub box. Built for bass and constructed from the highest quality MDF, this box makes sure you get above and beyond the sound quality you're looking for. Couple this box with your favorite Harmony Sub to achieve the thunderous bass you desire. On the front of the enclosure you'll find dual kerf style ports, positioned to give you the most acoustic efficiency, allowing incredible bass with even the smallest amount of power from your amplifier. Typically kerf style ports are only found on the most high end, professional boxes that require you to pay an arm and a leg. Well, not anymore. Utilizing the curves of the box, the kerf ports allow the box to produce deeper and more accurate bass. Strength and integrity is a staple of how our Harmony boxes are designed. The HA-BV1X15E is crafted with high quality 3/4in MDF and a 1in baffle. The interior of the box is specifically designed to handle even the most powerful of subwoofers. Lined with poly-fill and braced to take a punch, even our monstrous HA-ML152 monolith sub wouldn't be able to break this box! None of that truly matters if it doesn't look good, right? The spring loaded terminal cup has a clean, recessed design to keep your wires safe, while looking gorgeous. Color coded, and pre-wired on the inside, it's never been easier to hook up your sub. The smooth black carpet gives the enclosure a sleek, redefined look. Match that with the custom embroidered Harmony Logo, and everyone will know that you're living life in Harmony.
Specs 3
| Item Weight | 53.6 pounds |
|---|---|
| Product Dimensions | 21.2 x 24.7 x 18.6 inches |
| Item model number | HA-BV1X15E |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 16
Yes, absolutely! This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027.
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.
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Top Amazon Reviews
Excellent choice for a 15” ported box! Heavily built for a prefab box.
I was pleasantly surprised at how well built and heavy this box turned out to be. The other reviews from previous buyers is what peaked my interest in this product. The other reviews all seemed to be good so I took a chance on this prefab box even though prefabs are known for falling apart with violent bass. Well, this particular box from Harmony Audio is totally NOT made crappy like that. I run my 15” subwoofer inverted for; a bit of a lower tune, vc cooling, dampening, and mostly because my particular subwoofer won’t fit traditionally, it’s too tall. The subwoofer I’m using is an extremely large nearly 100 pound sub that is almost 12” tall, so since my sub is that size, it was the only way to be able for me to use this box. Even still, everything about this box is strong from what I can tell, but even though I feel that it’s strong I still have always used a ratchet strap around prefab boxes for more bracing to hold everything together tight. It does help keep it all tight plus it gives me something to latch my bungee cords onto that keep the box in place incase my brakes are slammed on or someone hits my truck. I’m not drilling holes into my truck just to secure the box. I’m not caring how it looks cause I’m the only one ever in the truck anyways. It’s a work truck, I just like to have some beats on those far drives to clients homes. So far after nearly 7-8 months of 3000 watts beating the crap out of my truck, this box has held up great. I have zero complaints except for the design being angled the way it is. I wish it were straight up and down but it’s not like I didn’t know that when I bought it. When I first used this box I still had my trucks back seat. As time went on my system build adapted and my back seat came out, changing my need for a slanted box that fits in a backseat. Currently I just utilize the angle to load the sound off my back window, to the roof then arch’s towards my front window by way of the roof. Loading in a 4 door truck can give some awesome cabin gain btw. The box tuning is adequate for around 30 hz and allows for the port to be more efficient at that hz. This box is efficient enough to allow my subwoofer to barely have to move but still get crazy amounts of bass from the port. I would definitely recommend this vented enclosure for a single 15” subwoofer. I would buy it again if I needed a box of this sort. I’ve ordered from this seller a few times and never had any problems with delivery or the product itself.
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Reviewed in the United States on August 28, 2026 by C. B.
Awesome box but only about 3.0 cubic feet
Awesome box but not quite enough air space for evl 15. While it sounds good my evl sounds like it is suffocating. Box would be perfect for a skar sdr or something because its built extremely well just not enough air space for bigger subs. Looks super clean in the back of the escalade too worth the money if you are on a budget sub
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Reviewed in the United States on April 7, 2026 by Andrew pickett
It's great!
I don't think you can beat the value here. Construction is solid, no rattles, looks good, and sounds good. I had a homemade box that fit two American base XFL 15s but the current electrical in my truck was not adequate and I could not take full advantage of them. As a dad and someone who needs the space in my car more than the bass I decided to downgrade to a single enclosure for 1 x15. I honestly couldn't be happier. This thing still shakes the entire car and might even sound better and smoother than it did in my homemade box. I'd recommend.
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Reviewed in the United States on February 13, 2026 by Jordan
Quality
Was skeptical about the quality of the box , but when I received the box its quality work and built solid.
Reviewed in the United States on April 3, 2026 by Robert
Amazing Value 15" subwoofer box
I have a Skar Audio VXF 15 D2 installed in this box powered by deaf bounce 4900.1. Definitely the bass is hitting much harder!! Excellent DB increase! I did not measure it, so do not ask. The previous box was 2.7 cub/feet tuned 32 hz weak build. The box flexed plus there was no sound dampening. I know I lost db when the volume increased. The reason why I bought this vs the skar audio box, the skar audio box was too tall to fit into my trunk 2013 GS350. This box did the trick low profile. This box is 3 cubic/feet , tuned to 32 hz I love it I love it!❤️❤️ hits harder now I have to turn volume down on amp..lmao. 7/27/2026..update.. the front baffle is made of particle board. DTX dreamsicle 15" ripped off.. the screws were to short and not enough screws on bottom. Overall sound of the box is amazing, my woofer is approx 80 lbs. They need to use MDF or Plywood 1 1/2" thickness. Then it would be amazing.
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Reviewed in the United States on October 25, 2024 by Blackwhip
Big Bass Big Value
Great box with great build quality and value. I have a Destroyer15D2 wired to 2ohms on 4k watts in this enclosure and so far everything is working as intended. It handles the upper 20 hz range like a champ. It also really does have a 1 inch baffle. Also, the sub dropped right in with a perfect fit. 10/10 for build quality for sure. I have this in a 014 BMW 535i - still have a lil bit of trunk space. Lol.
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Reviewed in the United States on July 16, 2025 by ManyOfAll
This box absolutely SLAMS with my Diamond Audio D9 15!
I dropped a Diamond Audio 15" D9 sub into this enclosure, and let me tell you—it HITS. The bass is deep, clean, and powerful. You can feel it in your chest, and it rattles everything in the best way possible. The vented design really lets the sub breathe and push serious air. Build quality is top-notch. The box feels super solid and well-constructed—no rattles, no flexing, just pure performance. It fits perfectly in my trunk and looks clean too. Honestly, I couldn’t be happier with this setup. If you’ve got a beast of a sub like the D9, this box will let it shine. Highly recommend for anyone who wants to get the most out of their 15" sub!
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Reviewed in the United States on June 6, 2025 by Chevelle life
Great buy
Very nice hits hard looks great.Bad ass box recommended it👌
Reviewed in the United States on September 12, 2026 by Martin Valdez