One final (maybe...) thought: I wonder how much care exhibitors put into turntable/cartridge/arm matching. My guess would be 'Not enough', because thanks to the present-day custom of eschewing grille cloth, I see system after system with obvious (and often severe) issues with subsonics. (The 2016 raffle system had it really bad.) I noticed this a few years ago in a room which was showing small mini monitors whose woofers were flopping like a freshly boated bass. When I asked the exhibitor about it, he brushed the question off, saying "These woofers have a long throw; they can handle it." That missed the point: How well can your signal chain play when it is puking its guts out trying to follow a high-amplitude signal at near DC. His preamp had a switchable subsonic filter; I was going to switch it in to see if it made a difference, but then I figured, if he doesn't care if his system is performing at its best, why should I. Anyway, its a very common problem and this year was no exception. Especially hard to excuse such a problem when the total cost of the TT (here I go again) in some cases approaches the cost of a used luxury sedan.