A low E on a regular bass is approximately 40 hz, low B is 32hz and octave down would be 20 hz, the bottom threshold of hearing in a person with perfect hearing. That thing would be impossible to play, would take two people, one to pluck and the other to fret it.
"Freedom of expression is important, but I have learned that people want to know how much you care before they care how much you know." The only time a bass player gets noticed is when he stops playing.