2Pcs 52mm/ 2.05in Inverter Port Tubes for 6-8 Inch Speakers – 72mm/ 2.83in Opening Hole, Airflow Bass Enhancement for Subwoofer DIY

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 premium quality Plastic material, this product is sturdy and durable.Specification:Item Type: Inverter TubeColor:BlackMaterial:PlasticTotal 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 / 2.05inPackage List: 2Pcs Inverter Tube

• Fit for 6-8 Inch Speakers: Designed with 5.2 cm/ 2.05inch inner hole diameter for seamless compatibility with standard 6 to 8 inch speakers and subwoofers
• Enhanced Bass Performance: Optimized 7.2 cm/ 2.83inch opening hole diameter ensures smooth airflow to amplify bass response and reduce distortion
• Durable Construction: Crafted from robust plastic material for long-lasting reliability in various audio setups
• Precise Length: Engineered at approximately 11.8 cm/4.65inch total length for optimal acoustic tuning and easy installation
• Complete DIY Solution: Includes two inverter tubes to provide all necessary components for your speaker upgrade project