While decidedly "niche products," as Martin Colloms describes them, single-ended (SE) tube amplifiers have still found a happy home in many audiophile systems. But a trap awaits those who wish to evaluate the differences between an SE and a solid-state or push-pull tube amplifier, or between two SE amps. In "The Unseen Variable
," Colloms digs to the bottom of this complicated matter.
While reviewing the Vandersteen 3A loudspeaker, Tom Norton explains the difference between mainstream audio companies and their audiophile cousins. Hint: The mainstream companies make their yearly changes on the outside of the box.