2PCS E302 52mm Inner Hole 72MM Opening Hole Diy Inverter Tube for 6-8 Inch Speakers

Feature: 1. With 52mm inner hole diameter, it is suitable for 6-8 inch speakers, subwoofers, etc. 2. The opening hole is about 72MM in diameter, helping to make the airflow more smooth. 3. Speaker inverting hole, also known as sound tube and air hole, often used in inverting type speakers. 4. It is mainly to overpower the air flow sound of the speaker vibration in the box and overlap the sound pressure of the radiation in front of the speaker to produce a bass effect. 5. Made of high quality material, this product is sturdy and durable. Specification: Item Type: Inverter Tube Total Length: Approx. 118mm 4.65in (as shown in picture) Open Hole Diameter: Approx. 72 mm 2.83in (as shown in picture) Inner Hole Diameter: Approx. 52mm 2.05in Package List: Inverter Tube x 2