Sundown Audio Single 18" NSv5 Ported Enclosure - AABE-SA-NSv5-S18SUPB-HD
Lead time is 2-3 weeks, no refunds once enclosures have been cut out! This is a custom made box specifically for the Sundown Audio NSv5 18" subwoofer. At Basshead Supply the goal with the “branded series” enclosures is to offer subwoofer specific enclosures that are well built, well performing and good looking enclosures at an affordable price. Using premium 1” Baltic Birch all around we are able to achieve a very strong and light enclosure. Using our refined assembly process produces an enclosure with NO visible screw holes anywhere on the enclosure. The entire enclosure is glued together with Titebond III and coupled with our 1” baffle and an additional 24mm baffle brace (on the dual subwoofer models) the enclosure is strong enough to handle high power subwoofer setups. Finished off with our carbon gray stain and a polyurethane finish these enclosures have a unique look to set it apart from all the generic prefabs. Complete with a recessed Satin Nickel Brass binding posts and prewired with OFC 10g wire, you are ready to go the moment it arrives. These are also built with love, by hand right here in the UNITED STATES OF AMERICA.
Custom built enclosure specifically for the Sundown Audio NSv5 18" subwoofer.
Specifications
| Net Internal Volume |
7.0 cubic feet |
| Tuning Frequency |
30 Hz |
| Port Area |
95.64 sq in |
| Port Dimensions |
18” (L) x 5.33” (H) |
| Subwoofer Cut-Out Diameter |
17.01 inches |
| Material |
1" Birch Plywood |
| Construction |
17-ply Birch Veneer |
| Finish |
Gray Stained |
| Terminal |
Pre-wired Metal Binding Post |
Dimensions/Weight
- 20" tall
- 39.75" wide
- 24.625″ deep
What Our Experts Think
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Precision-Matched for NSv5: Specifically designed to maximize the output and performance of the Sundown NSv5 18" subwoofer.
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Competition-Grade Output: Tuned for extreme SPL with deep, punchy lows and clean response across bass frequencies.
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Heavy-Duty Design: Built with thick MDF, reinforced bracing, and a robust port structure to handle massive power.
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Efficient Airflow: Custom flared port reduces turbulence, boosting clarity and bass impact.
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Power Handling Ready: Ideal for high-wattage setups, ensuring durability and peak subwoofer performance.
Q&A
Q: What is the Sundown Audio Single 18" NSv5 Ported Enclosure?
A: A high-performance ported enclosure engineered for the Sundown 18" NSv5 subwoofer, delivering extreme bass and peak efficiency.
Q: Is it designed for SPL or music use?
A: Optimized for daily music use with competition-grade output and clean low-end extension.
Q: What is the enclosure made of?
A: Built from premium ¾" MDF with double baffle and high-velocity porting for maximum strength and airflow.
Q: Can I use this box with other 18" subs?
A: It’s tailored for the NSv5 18" and may not provide proper fit or tuning for other models.
Q: Does it come ready to install?
A: Yes, it's fully assembled—just mount your NSv5 and connect your wiring.
Maintenance Tips
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Regular cleaning: Use a microfiber cloth to clean dust and debris from the surface and ports.
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Avoid moisture: Store in a dry area to protect the MDF and carpet from moisture damage.
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Check wiring: Inspect speaker terminals and wiring connections for security and corrosion monthly.
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Proper amplification: Ensure your amplifier matches the subwoofer’s RMS rating (~3000W) to avoid overloading.
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Secure placement: Mount the enclosure securely to prevent unwanted movement and minimize vibrations.
