43mm x 146mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Slotted Bits Bit Type: PH2

Bit Type: PH2

Shrinking rate: 48%(cross section)and 8%(longitudinal)

Made of aluminum material in glossy color

Note: Can not used long time Under the MAX

small pumps

43mm x 146mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Slotted Bits Bit Type: PH2Features: 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