Stereophile and Music Hall Audio share a long mutual history. Like most relationships, it's had its ups and downs; unlike most relationships, this one is well documentedin retired writer Sam Tellig's much-loved "Audio Cheapskate" and "Sam's Space" columns, and Music Hall Audio proprietor Roy Hall's responses in "Manufacturers' Comments." I always found Sam and Roy's gentlemanly brawling to be good, clean, if occasionally uncomfortable funlike the touchy rapport between a gregarious dog and a rascally cat forced to live under the same roof: A truce may have been called, but don't expect them to make nice.