M2EC 99x160mm Speaker Port Tube Subwoofer Bass for Reflex Inverted Tubes Black Plasti

Features:
OOTDTY
Compared with speaker without inverter tube, this structure can significantly the low-frequency radiation intensity, increase the volume, and improve the efficiency of the speaker..
It can increase the volume of the without increasing the power of the speaker itself..
Standard mount holes make this tube easier and convenient to install than others
These port tubes can overcome the poor sound quality and you can experience good looks, low distortion, and superior overall sound quality..
brand new and high quality
Speaker Port Tube is used to improve the response of many types of speakers.

Specifications:
Item: Speaker Port Tube
Material: Plastic
Color: Black
Quantity:2PCS
Size::approx 160x111mm/ 6.3x4.37in
Inner Diameter:99mm/3.9in

Package Includes:
2 PCS x Speaker Port Tubes (Without Speaker)

Note:
Please check the mountingn size clearly before buying the item.
Due to the lighting effects and angles, there is color difference in the product, please understand.
Due to manual measurement, there is tolerance in the product size.