Acoustic Control Sheet for Car Door Speakers High Performance Sound Absorbing Material No Special Tools Required Pack of 2 In Audio-Technica AT-AQ770

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You can control the sound absorption frequency and sound absorption coefficient by removing the control chip.The control chip that can be tuned to match the speaker absorbs sound effectively. Easy work, just paste it on the outer panel on the back of the speaker.The sound absorbing material is bonded to the back, so it can be easily installed just by pasting it. It has high adhesion and ability to follow uneven surfaces, requiring no specialized tools during installation, and can be applied to a variety of door shapes. The material is soft and has high conformability, making it extremely easy to install.