felt material for speaker boxes x width 90cm x thickness Ideal for absorbing sound in a wide range from to high frequencies [Otokobo Z]

Ships from Japan Wide band of sound absorption effect: Achieves effective sound absorption in a wide band from mid-bass to high frequencies. High-density felt material: We use felt material that is heavier than micron wool or glass wool. For speaker boxes only: Installed inside the enclosure to provide sound absorption. High sound absorption performance: Excellent sound absorption material to improve the sound quality of speakers. Easy Installation: With a size of 50cm x 90cm, it can be easily installed in the speaker box. ●Felt sound-absorbing material used inside speaker enclosures. It is a sound absorbing material that has a higher specific gravity than micron wool or glass wool, and is effective in the mid to high range.