 The magazine quickly established a market over the next decade, expanding from a small pamphlet-sized, hand-typed booklet to issues approaching a hundred pages.Holt was one of the first audio critics to provide in-depth details on his listening environment, with details on room acoustics, microphones, and other technical matters, departing from the mass-market slant to competitors such as "Stereo Review", "Audio Magazine", and his alma mater "High Fidelity".Holt's engaging writing style and emphasis on audio engineering made his articles authoritative while still remaining accessible to consumers and audiophiles.