Sundown Audio Tooled Basket Aluminum Large Vent Spacer Ring for 18" | Official Sundown Spacer

The Sundown Audio Tooled Basket Aluminum Large Vent Spacer Ring for 18" is a precision-engineered replacement part designed for Sundown’s high-performance 18-inch subwoofers. This spacer ring ensures proper airflow and vent clearance, helping improve cooling and maintain maximum output under extreme power conditions.

Looking for other sizes?

• For 10"–15" Sundown tooled frame subwoofers, see the Sundown Audio Tooled Basket Aluminum Small Vent Spacer Ring.

• For 18" Sundown subwoofers other than the subwoofers listed, it will require the Sundown Audio 18" Tooled Basket Motor Bolt Pattern Adapter and the Sundown Audio Tooled Basket Aluminum Small Vent Spacer Ring for M, Xv2, Xv3, Xv4, Zv4, NSv3, NSv4, NSv5, and NSv6 series subwoofers.

If your Sundown Audio tooled subwoofer model is not listed here, it will use the Small Vent Spacer Ring by default.

Key Features:

Official Sundown Part – Built specifically for Sundown Audio subwoofers with tooled baskets.
Perfect Compatibility – Fits the following Sundown series: Xv4, Zv5, Zv6, Zv7, and SDDN.
18" Specific Fit – Designed exclusively for 18-inch Sundown subwoofers.
Durable Aluminum Build – CNC-machined for strength, reliability, and long-lasting performance.
Improves Cooling & Ventilation – Provides the proper spacing to allow better airflow, reducing heat buildup during high-output use.
Hardware Not Included – Please ensure you have the correct mounting bolts for installation.

Product Details:

• Quantity: 1x Sundown Audio Tooled Basket Aluminum Large Vent Spacer Ring

• Compatibility: Sundown Xv4, Zv5, Zv6, Zv7, SDDN (18" subwoofers only)

• Size Fitment: For 18" models only – smaller subs use the Small Vent Spacer Ring

• Material: CNC-machined aluminum

• Hardware: Not included

Why Choose the Sundown Large Vent Spacer Ring?

When upgrading or rebuilding your 18-inch Sundown subs, proper venting is essential for performance and durability. The Tooled Basket Aluminum Large Vent Spacer Ring ensures your subwoofers maintain peak airflow and cooling, preventing overheating and keeping your system competition-ready.

For 10"–15" models, use the Small Vent Spacer Ring. For other 18" applications, check whether your setup requires the Large Vent Spacer Ring or the 18" Motor Bolt Pattern Adapter.