Feature

●Working Principle:The speaker inverting holes 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.
●Product Function:Speaker inverting holes is often used in the inverted-phase speaker, mainly to suppress the sound pressure of the airflow vibrating in the box and overlap the sound pressure radiated in front of the speaker.
●Quality Product:The inverted tube speaker is made of high quality material, it is sturdy and durable,without any harmful substances, you can use with confidence.The airflow is very smooth and the voice is obviously improved.
●Easy to Install:The speaker inverting holes is compact and lightweight,perfectly fit your speaker, reliable to use and it is easy to carry and easy to install.It is suitable for 4-8 inch speaker.
●Note:We are responsible for the quality of the product, if you have any dissatisfaction with the product after purchase, please contact us as soon as possible, we will be happy to solve for you!


Description

Feature:
1. Made of high quality ABS plastic, this product is sturdy and durable.
2. The inner side is smooth and the bell ends are designed at both ends. The airflow is very smooth and the airflow is obviously improved.
3. The height of the inverted tube is 90MM and the opening is 76MM. It is suitable for speakers with 4-8 inch speakers.
4. Speaker inverting holes, also called sound tubes and air holes, are often used in inverted speakers.
5. 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.

Specification:
Item Type: Inverted Tube
Height: Approx. 90mm / 3.54in (as shown in picture)
Opening: Approx. 76mm / 2.99in (as shown in picture)

Package List:
Inverted Tube x 4