That's the SPL test, wait till he tells you about the endurance test. Same thing for 24 hours. The problem is the PD negotiator may not hold out the whole 24 hours.
They might rush the joint, then the record will skip for sure.
ROFL - I'm dyin' over here... 😂
Back to the OP - @uncleang , I audition speakers at normal volume. With the dozen or so speakers I've owned over the years, I don't think I've ever varied the volume while listening and evaluating.