The rotary subwoofer: A controllable infrasound source: The Journal of the Acoustical Society of America: Vol 125, No 4
How does a rotary subwoofer work? - Quora
1-30hz rotary subwoofer build? - Subwoofers - The Klipsch Audio Community
Ultra-low frequency Rotary Subwoofer - Testing with oscilloscope - YouTube
Playing Decaf tracks on an ultra-low frequency rotary subwoofer - YouTube
Car Speaker Spider Rotary Subwoofer Speaker Parts Guangzhou - Buy Car Speaker Spider,Subwoofer Speaker Parts Guangzhou,Rotary Subwoofer Speaker Product on Alibaba.com
Figure 2 from The rotary subwoofer: a controllable infrasound source. | Semantic Scholar