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Low Pass Filter Bass Subwoofer Preamp Amplifier Board Single Power DC 9-32V Preamplifier with Bass Volume Adjustment
![My subwoofer knob has a small white dash on the left. Does anyone know what thats for? Is it a safezone or something? I ususally keep it at 100% when at low My subwoofer knob has a small white dash on the left. Does anyone know what thats for? Is it a safezone or something? I ususally keep it at 100% when at low](https://i.redd.it/60jj2el58mw91.jpg)
My subwoofer knob has a small white dash on the left. Does anyone know what thats for? Is it a safezone or something? I ususally keep it at 100% when at low
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New All Transparent Wireless Blue Tooth Speakers Hi-fi Household Desktop Subwoofer Portable Retro Nordic Minimalist Sound Box - AliExpress
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