Sharp Electronics has announced a new lineup of "one-bit" digital amplifiers that may herald a new generation of audio products.

Larry Greenhill says he'll never forget his first encounter with the <A HREF="http://www.stereophile.com//loudspeakerreviews/382/">Krell LAT-1 loudspeaker</A> at a meeting of the Westchester Audiophile Society. Suitably impressed, Greenhill reports, "I'd been bitten. I made arrangements to continue the audition in my own listening room." His complete analysis awaits.

A "digital rights management" (DRM) company has been awarded a patent for its "tickets" to Internet-based entertainment. Bethesda, MD&ndash;based <A HREF="http://www.contentguard.com">ContentGuard Holdings, Inc.</A> announced July 27 that it has been granted a patent for its "digital ticket" system, which allows users access to digital entertainment&mdash;music, video, graphics, and e-books&mdash;from any Internet-connected device.

If you haven't seen much in the mainstream press about the new satellite radio services from XM and Sirius, both poised to launch before the end of the year, you soon will. First out of the chute with the big media bucks, <A HREF="http://www.xmradio.com">XM Satellite Radio</A> unveiled last week its national advertising campaign called "Radio to the Power of X."

News <A HREF="http://www.stereophile.com/news/11094/">last week</A> about SafeAudio CD copy protection indicates that while fighting pirates, the major record labels are also attempting to seal off the ability of users to place their own music from CDs onto computers. If they succeed, the only alternative for consumers who want non-pirated music on their desktops will be to buy content directly from the labels themselves, or companies set up to legally supply digital audio.

We were saddened to learn of the death of audio guru Harvey "Gizmo" Rosenberg, who died Monday, July 16 of an apparent heart attack. He was 59.

One of the most astute bits of folk wisdom is the old saying "If it ain't broke, don't fix it."

In what is intended to have the biggest impact yet on the thriving "rip, mix, burn" lifestyle, <A HREF="http://www.macrovision.com">Macrovision</A&gt; has revealed that several record labels have been secretly putting its copy protection system onto new CD releases since around March of this year (see <A HREF="http://www.stereophile.com/news/10985/">previous report</A>). The process, called SafeAudio, is a Macrovision registered trademark and is intended to prevent the copying of CDs, or tracks from CDs, onto CD-R discs and computer hard drives. The technology was developed jointly by Macrovision and <A HREF="http://www.ttrtech.com">TTR Technologies</A>.

There appears to be nothing more important to the music business today than controlling the distribution and use of digital content on the web and in the home. Proprietary schemes to prevent or control the use of audio files have become hot commodities and valuable assets for many companies. <A HREF="http://www.liquidaudio.com">Liquid Audio</A> recently announced that the US Patent Office has awarded the company a patent (#6,219,634) for its watermark technique used for distributing secure digital music files.