Durable Woofer Connector Tube - High-Quality Inverter Speaker Vent Port for Enhanced Bass Effect | Sturdy & Lightweight Design (3-5 Inch Tube Opening, 80mm Length) | Perfect for Home Theater, Car Audio & DIY Speaker Projects

DAUERHAFT Woofer Connector Tube, Inverter Speaker Vent Speaker Port Tubes Bass Effect Sturdy Lightweight Portable for Speaker Port Tube(Tube Opening 42 Length 80mm 3 inch to 5 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. Its inner wall is smooth and the ends are flared. Made of high quality ABS plastic, it is sturdy and. 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. 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) .w-e-text table td,.w-e-text table th,;.w-e-text table, Package List: 4 x Inverted Tube