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LATEST ADDITIONS

Negative feedback doesn't always decrease amplifier distortion!

Martin Colloms argues persuasively in the January 1998 <I>Stereophile</I> 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.

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As Reviewers See It

Every summer, I invite a representative sample of Stereophile's equipment reviewers to the magazine's Santa Fe HQ. For the third successive year, I decided to tape some of the free-for-all discussion that takes place and offer readers the opportunity of peeking over the participants' shoulders by publishing a tidied-up version of the transcript.
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Jeff Rowland Design Group Synergy line preamplifier

One of the differences between mass-market and high-end audio is in product model longevity. By this I don't mean that high-end products necessarily last longer&mdash;although I think they generally do&mdash;but that models remain in a manufacturer's product line longer, perhaps being refined in an evolutionary manner. This helps products retain their value, and, when new models are introduced, these involve more than a cosmetic upgrade and some additional bells'n'whistles.

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DVD-equipped computers take over the world!

Digital Versatile Disc (DVD)---the well-publicized successor to VHS tapes, compact discs (CDs), and CD-ROMs---will struggle in the video and music industries, but be a major success for the personal computer industry, according to a recent report from Forrester Research. The report concludes that PC manufacturers will rapidly embrace DVD, resulting in an installed base of 53 million DVD-equipped PCs by 2002.

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Christmas Discs Add Holiday Cheer

Only a few days remain until Christmas. Trees, tinsel, twinkling lights, and . . . tunes. It's the audiofool's most dreaded time of the year, when he once again suffers through his nine-thousandth experience of Bing Crosby crooning "Rudolph the Red-Nosed Reindeer." Sheer torture.

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