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Get it between 2025-01-01 to 2025-01-08. Additional 3 business days for provincial shipping.
The airflow is very smooth and the airflow is obviously improved. It is suitable for 4-6 inch speaker.
Compact and lightweight, it is easy to carry and easy to install.
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.
Speaker inverting holes, also called sound tubes and air holes, are often used in inverted speakers.
Its inner wall is smooth and the ends are flared. Made of high quality ABS plastic, it is sturdy and durable.
Feature: 1. Speaker inverting holes, also called sound tubes and air holes, are often used in inverted speakers. 2. 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. 3. Its inner wall is smooth and the ends are flared. Made of high quality ABS plastic, it is sturdy and durable. 4. The airflow is very smooth and the airflow is obviously improved. It is suitable for 4-6 inch speaker. 5. Compact and lightweight, it is easy to carry and easy to install. Specification: 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