There are three production lines, one in the foreground for the assembly of relatively lightweight products like preamps and surround controllers, a second in the middle for heavies like amplifiers and receivers, and a third in the background for disc players. Production is organized on a batch basis, ands the workers on the lines can switch from one product to another without any hold-up. See here (all upside-down) are an MC1202 two-channel amplifier and a parade of MC 275 reissue tube amplifiers. Sam Tellig raved about the latter in his July 2004 column.