Every song,
one octave deeper.⁠_

1. 01Most music stops short of the bottom octave.Commercial recordings drop away steeply below about 60 Hz, and a piano's lowest note is 27.5 Hz.
2. 02So we add it back.An octaver plays the song's own bass line one octave lower, at half the frequency: a 40 Hz kick also lands at 20 Hz.
3. 03Subs built for it.Six GSG Devastator infrasubs are tuned to 19 Hz, so the new octave has speakers made to play it.
4. 04Every band has its own speaker.HSD WarHammer horn subs carry the punch (36-150 Hz), and HSD MantArray 90 tops carry everything above 90 Hz.
5. 05Mixed, then tuned for the boxes.The mix and EQ happen on a Behringer WING Rack. The Powersoft amps split the bands and protect each speaker.
6. 06Loud, but looked after.Limiters and a 17-20 Hz safety filter protect the subs. Our crew watches the levels all night, including the deep bass that ordinary meters miss.
7. 07Felt as well as heard.Deep bass is felt in the body, so guests who are deaf or hard of hearing can share it too.