Soundbars By Yuniror
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0Speaker Cabinet Port Tube, ABS Plastic 40mm X 117mm Subwoofer Box Port Tube Professional for Bass Effect for 3-4 Inch Speakers(Perforated 40 Tube) - Product Features
- With smooth inner wall and the two ends are flared. The airflow is very smooth and obviously improved.
- Applicable to 3-4 inches speakers. The speaker port tube adopts high quality ABS plastic, it is sturdy and durable.
- Speaker inverting holes, also called sound tubes and air holes, are often used in inverted speakers.
- The total length of the inverting tube is 117mm, and the opening diameter of the speaker shell is 40mm.
- The main principle 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.
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