The other day I was encouraged by a friend of mine when I told him I was restoring an F-40. He said that when he was younger, he played an A-100 for an ice skating rink, which had 4 of these tone cabinets all wired up together. He couldn't remember if they were B-40 or F-40, but same cabinet and grille style.

Of course acoustics of a place as big as an ice skating rink helped, but he said it was one of the best sounding tone cabs he ever played through.