Acoustically Tuned Ventilation Duct Inverted Tube For Subwoofer Cabinet Upgrades Reduces Wind Noise Interferences

By accurately calculating the pipe diameter and length, it can effectively guide the airflows inside and outside box, improving low-frequency efficiency. Quality ABS engineering plastic, sturdy and durability, not easily deformed or cracked. The inner wall of the pipe is treated with special technology, which is smooth and flat, and can greatly reduce friction sound without noise interferences. Acoustically Tuned Ventilation Duct Inverted Tube For Subwoofer Cabinet Upgrades Reduces Wind Noise Interferences. Features: By accurately calculating the pipe diameter and length, it can effectively guide the airflows inside and outside box, improving low-frequency efficiency. Quality ABS engineering plastic, sturdy and durability, not easily deformed or cracked. The inner wall of the pipe is treated with special technology, which is smooth and flat, and can greatly reduce friction sound without noise interferences. Two standard pipe diameters and lengths are available, suitable for most loudsp