Here's one of the best audio "pictures" of the grateful dead's mammoth PA system, The Wall of Sound, designed by engineer and chemist Owsley Stanley for the 73

Here's one of the best audio "pictures" of the grateful dead's mammoth PA system, The Wall of Sound, designed by engineer and chemist Owsley Stanley for the 73 and 74 tours. This is a famously good audience recording and one that 'AUD' purists often point to. There's some deadheads that prefer audience recordings, and others (probably most) that prefer soundboard pulls or 'SBD'. https://archive.org/details/gd1974-07-21.ecm22p.bertrando.89033.flac24/gd1974-07-21.motb.0056.s1t01.flac https://archive.org/details/gd1974-07-21.ecm22p.bertrando.89... 'MOTB' stands for 'mouth of the beast' which is one step up from the 'FOB' or 'front of board' mentioned in the article, and was a term used by a handful of tapers including Rob Bertrando. Here's a little interview with Rob and a couple other prolific tapers: http://www.gdhour.com/music/tapers.html http://www.gdhour.com/music/tapers.html