60.5mm x 128mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box Vent Mounted Ball Bearings with Two-Bolt Flange Intended for the general use

Intended for the general use under the head of a bolt or nut in order to provide a smooth-bearing surface

* Output Peak Power: 120W

Hex Width: 19mm / 0

easy maintance and disassembly

Dustproof IP65 and Anti-corrosion performance

60.5mm x 128mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box Vent Mounted Ball Bearings with Two-Bolt Flange Intended for the general useFeatures: 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 reflex speaker building project. Normal tubes suffer from nasty turbulence