Each equipment report in Stereophile focuses on a single audio component. When listening to a component for review, I leave unchanged all other components in my audio system. Other Stereophile reviewers experiment with different interconnects, speaker cables, power cords, or stands. As I found while reviewing Bryston's BP-17³ (Cubed) preamplifier, being flexible has its rewards.

Description
My first lesson in flexibility was learning what Bryston means by "Cubed" (footnote 1). Jim Tanner, Bryston's VP of sales and marketing, explained that all their Cubed models employ an array of 12 active devices for the first 6dB of gain. Developed by the late Dr. Ioan Alexandru Salomie, this array acts as "a super-linear" input buffer to filter out audio- and radio-frequency noise, particularly anomalies that originate in the power line, reducing the overall noise and distortion to less than 0.001%.

Six weeks ago, Jana Dagdagan and I visited the Peekskill, New York factory of Soundsmith—her first time there, my second. Although I didn't mention this to the company's President and Chief Engineer, Peter Ledermann, the thing that most impressed me during my second visit was how little had changed since my first, in April of 2015. In particular, all but two of the employees I saw at Soundsmith this year had been there during my first visit; that suggests an experienced workforce—no small advantage in the manufacturing of phono cartridges, where the requisite skills are specialized, to say the least—a setting where people feel sufficiently challenged and appreciated that they stick around for years rather than mere months.

"No one thing turned more people into audiophiles than the '60s counterculture," said Bruno, arm flung over his cash register. "It opened up the doors of sonic perception. Even the great audio designers of the day were countercultural mavericks!"

Bruno is the lanky, braided-beard, thirtysomething owner of a small, well-stocked record shop in Montreal, and we stood facing each other on either side of a glass case filled with vinyl paraphernalia. Bruno has made the most of his limited space. Every foot of each wall supports a shelf crammed with music-related merchandise: rock and jazz memorabilia, album covers, refurbished turntables. There's even a rack in the back for music and audio magazines, including Stereophile.

The right thing at the wrong time is the wrong thing.—Joshua Harris

The sampling theory formulated by Claude Shannon in the late 1940s had a key requirement: The signal to be sampled must be band-limited—that is, it must have an absolute upper-frequency limit. With that single constraint, Shannon's work yields a remarkable result: If you sample at twice that rate—two samples per period for the highest frequency the signal contains—you can reproduce that signal perfectly. Perfectly. That result set the foundation for digital audio, right up to the present. Cue the music.