Feature

●【Applicable Scene】--- Speaker inverting holes, also called sound tubes and air holes, are often used in inverted speakers.
●【Working Principle】--- The main reason is that the sound pressure of the airflow vibrating in the box is poured out to overlap the sound pressure radiated in front of the speaker to produce a bass effect.
●【Durable ABS Material】--- Its inner wall is smooth and the ends are flared. Made of high quality ABS plastic, it is sturdy and durable.
●【Stable Performance】--- The airflow is very smooth and the airflow is obviously improved. It is suitable for 4-6 inch speaker.
●【Lightweight and Portable】--- Compact and lightweight, it is easy to carry and easy to install.


Description

Spec:
Item Type: Inverted Tube
Total Length: Approx. 80mm/3.15in (as picture)
Speaker Housing Opening Diameter: Approx. 42.5mm/1.67in (as picture)

Package List:
4 x Inverted Tube