News

NAD has announced what they claim is the world's first true digital audio power amplifier directly linking a CD player to a loudspeaker. As explained by Peter Lyngdorf, chairman of NAD Electronics and TACT Audio, the Millennium "is not a conventional combination of D/A converter and analog amplification.

A continuing proliferation of formats is as likely in the audio realm as it is in video. The analog cassette was one of the most successful formats in history, and the industry has yet to find a replacement for it. MiniDisc, a Sony-originated format, required several attempts to introduce it to the American market.

For years, there has been concern in the high-end audio press about the effects of jitter on digital audio. Manufacturers spend countless design hours measuring jitter and trying to minimize its influence on the sound of their products.

Loudspeaker manufacturer Polk Audio announced on December 31 that it had acquired an interest in Genesis Technologies, manufacturer of both loudspeakers and digital products. Not only did Polk invest $500,000 in Genesis convertible preferred securities, it also obtained a three-year option to purchase the Colorado-based high-end audio company, which is led by three industry veterans: Arnie Nudell (co-founder of Infinity), Paul McGowan (co-founder of PS Audio), and Mark S. Schifter (co-founder of Audio Alchemy).

The one-two punch known as the Holiday Season is only half finished; Christmas is simply the warmup for the biggest blowout of the year. For a successful New Year's party, the only ingredient more essential than a well-stocked liquor cabinet is an ample supple of party tunes. (Recommended accessory: a reliable CD changer. It's hard to play host and DJ at the same time.)

Martin Colloms argues persuasively in the January 1998 Stereophile that negative feedback is not the panacea that amplifier designers believe it to be. His experience of an amplifier (the Cary CAD-805C) and a preamplifier (the Conrad-Johnson ART) that use no negative feedback other than local degeneration, yet have sound quality better than he has previously experienced, convinces him that even when a design's closed-loop distortion appears to be acceptably low, the listener is still aware of an amplifier's very distorted open-loop behavior.