110mm x 201mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Limit Switches (here is not included)

(here is not included)

plastic machinery

The shelf protrudes 1mm from the board when aligned

foldable design

Rated Voltage/Current: 380V/3A

110mm x 201mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Limit Switches (here is not included)Features: 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