Buss stamped in my brain when reading old manuals, thinking; "Wow, if this thing can boost the signal up to Buss level, it must be better than some connections we call bus"i’m trying to remember why Buss is stamped in my brain. I did a city in guilds audio engineering course in the late 90’s run by a former Neve Engineer. Then I did a short SAE dimploma in London, then worked at Metropolis studios. I don’t know where I picked it up, but the first time my spelling was questioned was on this forum.
A few weeks ago i mailed manufacturer about "...Buss level..." at the top of their FB page. Looks like they prefer buss because of aesthetics.