audiofun
... in order to be analogous to a tonearm, the participants would have to be directly across from each other walking up the stairs in the same plane. If they were situated the way people actually carry a couch up a stair case (one at the top one at the bottom) I do not see an analogy in the mechanical assembly of a tone-arm ...I’m sorry that I’m not explaining this more clearly. If you look at the profile of a pickup arm designed with more thoughtful geometry than the Technics - such as a Triplanar or an SME V - I think you’ll understand Ralph’s analogy.