LATEST ADDITIONS

<I><B>Editor's Note: </B>In 1954, a New York writer and teacher reinvented the world of audio with the modest-looking Acoustic Research AR-1 loudspeaker. A small fraction of the size of the behemoths that were then </I>de rigeur<I> for the reproduction of bass frequencies, Edgar Villchur's loudspeaker went as low with less distortion. Perhaps more importantly, the AR-1 pioneered both the science of speaker design and the idea that a low-frequency drive-unit could not be successfully engineered without the properties of the enclosure being taken into account.</I>

Like the Reference Studio/60, which was <A HREF="http://www.stereophile.com/loudspeakerreviews/1204paradigm">enthusiasti… reviewed</A> in the December 2004 issue by Kalman Rubinson, Paradigm's floorstanding Reference Studio/100 is now available in a v.3 version. The '100 is the flagship model in the Canadian manufacturer's Reference line. Its earlier incarnations, the original Studio/100 and the <A HREF="http://www.stereophile.com/loudspeakerreviews/252/">Studio/100 v.2</A>, were reviewed by Tom Norton and Robert Deutsch in the August 1997 and June 2000 issues of <I>Stereophile</I>, respectively, and both writers were well impressed at how much sound quality could be wrought from this competitively priced speaker design. Bob Deutsch, in particular, referred to the v.2 as a "a serious high-end contender, and a formidable one for just about any speaker in its price range and even well above."

Experienced reviewers know that shows are the wrong environments for critical audiophile listening. Convention centers&mdash;especially the one at Las Vegas&mdash;are huge, cavernous airplane hangers, not the intimate listening rooms reviewers thrive in. Extraneous sounds from subwoofer blasts and the constantly milling crowds leak in to sully the music. Booths set up by manufacturers on the show floor have very thin, flexible walls, and no bass treatment.

Media conglomerates have long hedged their bets by consulting demographics experts and marketing gurus. Now, music executives have real science to bolster their sometimes unreliable instincts about what will succeed and what will fail. It's an audio analysis program called Hit Song Science (HSS).

Xd on its way: <A HREF="http://www.nht-hifi.com">NHT</A&gt; has begun shipping its Xd DEQX Calibrated DSP speaker systems to dealers, according to an announcement made January 24 by parent company the Rockford Home Group. A high-tech twist on the old satellite-and-subwoofer scheme, the Xd consists of a pair of two-way acoustic satellite speakers; an XdW bass module with two opposing 10" drivers powered by an internal PowerPhysics 500W amplifier; and an XdA outboard processor/amplifier that includes a DEQX-calibrated DSP engine and four PowerPhysics One-Cycle Sound amps.

In the February issue, <I>Stereophile</I> scribes pen their <A HREF="http://www.stereophile.com/records2die4/">Records 2 Die 4</A>. Now it's your turn: give us the one or two discs that topped your list in 2004.

<I>What has happened will happen again, and what has been done will be done again, and there is nothing new under the sun.</I>&mdash;Ecclesiastes 1:9