Integrated Amp Reviews

Besides my 20th wedding anniversary and the 15th anniversary of Listener magazine's first issue, this year marks the 25th anniversary of Roksan Audio Ltd., easily one of the most innovative design and manufacturing firms in British audio. Before Roksan came upon the scene in 1985, none of us had ever seen a loudspeaker whose tweeter was isolated from its surroundings by a sprung suspension. Or a commercial phono preamplifier designed to fit inside a turntable, just a centimeter away from the tonearm base. And who among us could have guessed that the Linn">http://www.stereophile.com/turntables/1103linn">Linn LP12's hegemony—among flat-earthers, I mean—would be broken by a turntable from outside of Scotland? Yet the Roksan Darius loudspeaker, Artaxerxes phono stage, and, above all, Xerxes turntable accomplished those things and more, to the genuine surprise of nearly everyone—and to the benefit of our industry at large, as other firms took those ideas and ran with them.

There's a fantastic new two-SACD/CD set of a demonstration-quality live recording of a rather obscure work you really should get to know, not only for its own merits, but also for what I believe is its underappreciated but major influence on music and on popular culture. The piece is by 20th-century composer Arnold Schoenberg, but trust me—it's more than "listenable." It (or, at least, the music on the first disc) is beyond engaging; it is compelling—a revelation, even. The work is Gurrelieder (Songs of Gurre), Gurre being a castle in medieval Denmark that was the setting of a real-life doomed love triangle, the story of which has since loomed large in the moodily brooding artistic consciousness of Danes. The 19th-century Danish poet Jens Peter Jacobsen wrote a collection of poems based on medieval legends, including this one, and a German translation by Robert Franz Arnold provided Schoenberg's dramatic texts.

To celebrate his 30 years with the company, Marantz threw designer Ken Ishiwata a birthday party in the form of an assignment: Design a new, limited-edition integrated amplifier and SACD/CD player bearing his initials. (Only 500 of each will be made worldwide.)

Years ago, when I taught high school choirs, I had many types of kids in my ensembles. Though none exclusively fit the overly stereotypical lineup of kids on Fox TV's Glee, I always managed to have a nice assortment of jocks, preps, goths, motorheads, geeks, wastoids, and dweebs. One of the things that always fascinated me was how the big, tough jocks would turn out to be the most sensitive, emotional singers. It was always a touching moment when an otherwise stoic football star or wrestler would get all misty while singing the final song of the year-end concert. It showed me that the toughest exteriors often hide the creamiest creampuffs.

A decade ago, many predicted that amplifiers with switching or class-D output stages would come to dominate high-end audio. In a post–Peak Oil world in which the price of energy would always continue to rise, a class-D amplifier's very high efficiency in converting AC from the wall outlet into speaker-driving power would be a killer benefit. Although a conventional push-pull class-B amplifier has a theoretical efficiency of 78.5%, which would seem usefully high, this efficiency is obtained only at the onset of clipping; the need for the output devices to carry a standing bias current reduces that efficiency considerably, typically to around 50%. Class-A amplifiers are even less efficient, with a maximum of 25%; ie, three times as much power is dissipated by the amplifier as waste heat as is used to drive the loudspeaker (see "Sam's Space" in this issue).

There have been lots of great, and even some fabulous books of music criticism or reportage, and I've recommended several in these pages. So far, however, only one has made me chuckle, chortle, or laugh out loud, time and time again.

When I was a kid, I saw the Marlon Brando remake of Mutiny on the Bounty. I'm sure you know the story—lots of bad-guy/good-guy tension between Captain Bligh and Fletcher Christian. There's also an overlay of class conflict, but with a twist: The up-and-comer is the sadist, while it's the aristocrat who is nature's nobleman.