Specification:
Item Type: Inverter Tube
Total Length: Approx. 117mm/4.6in (as shown)
Hole Diameter of the Speaker Shell: Approx. 45mm/1.8in (as shown)
Material: ABS plastic
Compatibility: 4-6inches speaker
Features:
1The speaker phase-inverting hole, also called sound tube or air hole, is often used in the inverted-phase speaker. 2It adopts ABS plastic material, sturdy and durable, suitable for 4-6 inch speaker. 3Smooth inner wall, with both ends designed as horn mouth. Smooth airflow, obviously reducing the sound. 4Long service life, not easy to damage, and you can use for a long time. 5It is mainly to pour the sound pressure of the airflow vibrating inside to the front, and overlap with the sound pressure radiated from the speaker to make a bass effect.
Package List:
4 x Inverter Tubes