Matterhorn Woofer

It can generate a constant 15 Hz sine wave tone at 140 dB for 24 hours a day, seven days a week with extremely low harmonic distortion. The subwoofer has a flat frequency response from 15 to 80 Hz, and is down 3 dB at 12 Hz. It can generate a constant 15 Hz sine … Read more

Gerald Costa’s Transcendental Immersive Musical Experience (TIME), an 11-year Otherworldly Pursuit of High-End Vehicle Audio Excellence

https://www.youtube.com/watch?v=B8k6MOUfib4 “Kind of a surround-sound with only two channels…  Definitely not a normal two-channel system; it presents [soundstage] as much larger…” — 1:26 in