72mm x 98mm Speaker Port Tube Subwoofer Tube Bass Woofer Box 4pcs Blue Inner Diameter (d): 3mm

Inner Diameter (d): 3mm

*Main Color:

Strike Base Size: 20 x 44mm / 0

Power on : 1-2 pass

72mm x 98mm Speaker Port Tube Subwoofer Tube Bass Woofer Box 4pcs Blue Inner Diameter (d): 3mmFeatures: Speaker Port Tube is used to improve the bass response of many types of speakers. There are plenty of types to help you with your vented box design, and carries tubes of every shape and size, including adjustable length ports and flared ports. These port tubes are a reliable, convenient installation, while at the same time providing a finished, "pro" look to your bass speaker building project. Normal tubes suffer from turbulence at the