4PCS Speaker Vibration Plate, 45mm Bass Speaker Passive Rubber Auxiliary Radiator DIY Repair (Black) - Poover-eu FBA

Anyone else here like making their own speakers? Nope?
Just me then...
Thought I'd post these anyway .

Worth it just for the product details -

About this item

• It has a great effect on the bass and can increase the potential of the bass.
• It is suitable for use in a closed cabinet to enhance the bass performance of the speaker.
• It can be used directly on the box to open a hole and put it on (provided the phase hole must be canceled)
• The low-frequency dive depth is equivalent to the reverse type, but the speed is obviously faster than the backward type, which has the advantage of a certain closed box. At the same time, it completely eliminates the disadvantage of the inverted structu
• For those who like to dive deep, but have higher requirements for bass speed, it is better to use a radiation basin to make a subwoofer.