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Harmony Audio HA-BV1X12E Universal Single 12 Empty Vented Port Sub Box Unloaded Enclosure

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HA-BV1X12E Sub Box

Harmony Audio proudly introduces you to our HA-BV1X12E 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.

Dual Kerf Style Ports

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 kerft style ports are only found on the most high end, professional boxes with a hefty price tag. Well, not anymore. Utilizing the curves of the box, the kerf ports allow the box to produce deeper and more accurate bass.

High Quality 3/4" MDF and 1" Baffle

Strength and integrity is a staple of how our Harmony boxes are designed. The HA-BV1X12E 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-ML122 monolith sub wouldn't be able to break this box!

Exclusive design

None of that truely 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.

Harmony Audio HA-BV1X12E Universal Single 12" Empty Vented Port Sub Box Unloaded Enclosure
  • Empty Single 12" Vented Sub Box
  • Enclosure Baffle: 1" MDF Wood
  • Enclosure Material: 3/4" MDF Wood
  • Cut Out: 11" Diameter
  • Mounting Depth: 10 1/2"
  • Spring Loaded Terminal Cup
  • Pre-Wired Terminal Cups
  • Box Dimensions: 21.75" x 19" 15"


  • Compact Design Ideal for Trunk
  • Custom Designed Vented Port
  • Recessed Subwoofer Clean Look
  • Durable OEM Grade Black Carpet
  • Embroidered Harmony Audio Logo
  • Spring Loaded Terminal Cup

This item is New
Proposition 65 Warning for California Consumers

WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to

Ratings and Reviews


1 product ratings

amazing quality for the price

Apr 27, 2022

put in a memphis mojo pro that needed 2.5 cubic ft. box and most are smaller so i went with this one and the qualitys impressive! the plate you mount the sub is 1", the rest is 3/4 but the port is 1 inch also...buying another in a few days, if your needing a bigger encloser, this is the one!

Questions & Answers

Kenneth Russell

What's the cubic foot size many Hertz is it tune too


This box is tuned to 34 Hertz and it has approximately 3.58 cubic ft of air space.

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