Window Knock (Version 12) [Knocking On Glass House Office Door Noise Clip] [ Sound Effect] - song and lyrics by Finnolia Sound Effects | Spotify
![I know my main problem is that they are skar… but what would be causing the popping/knocking sound? 2x SDR12 powered by a RP-1200 : r/CarAV I know my main problem is that they are skar… but what would be causing the popping/knocking sound? 2x SDR12 powered by a RP-1200 : r/CarAV](https://external-preview.redd.it/tt-Wq1E9PmJJVyB5a0EDw9VQkO6lzSCXAjTjkxDbi6Q.png?width=640&crop=smart&format=pjpg&auto=webp&s=ab1c90473021422290743ee3f7613f58eac1236c)
I know my main problem is that they are skar… but what would be causing the popping/knocking sound? 2x SDR12 powered by a RP-1200 : r/CarAV
![Powered subwoofer makes a knocking sound every 5-10 seconds once plugged into power. Not plugged into AMP. Sub is YST-SW100. : r/audio Powered subwoofer makes a knocking sound every 5-10 seconds once plugged into power. Not plugged into AMP. Sub is YST-SW100. : r/audio](https://external-preview.redd.it/4catsgKB7NPYY6TpyeOA2TP-HABo0SpHe5qEl3PwRnU.png?width=640&crop=smart&format=pjpg&auto=webp&s=c25e0d2d123777ab70405aebe370c204ccf5c78d)
Powered subwoofer makes a knocking sound every 5-10 seconds once plugged into power. Not plugged into AMP. Sub is YST-SW100. : r/audio
![Amazon.com: ECOXGEAR SoundExtreme ES08 Waterproof 8-inch Subwoofer with Built-in 500-Watt Amplifier : Electronics Amazon.com: ECOXGEAR SoundExtreme ES08 Waterproof 8-inch Subwoofer with Built-in 500-Watt Amplifier : Electronics](https://m.media-amazon.com/images/I/71VuKsUbgfL.jpg)
Amazon.com: ECOXGEAR SoundExtreme ES08 Waterproof 8-inch Subwoofer with Built-in 500-Watt Amplifier : Electronics
![Amazon.com: Lanzar 15in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Plastic Basket, Dual 4 Ohm Impedance, 2000 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System - Amazon.com: Lanzar 15in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Plastic Basket, Dual 4 Ohm Impedance, 2000 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System -](https://m.media-amazon.com/images/I/41Yl0tKKG6L._AC_.jpg)