LATEST ADDITIONS

Last month (click here for previous Fine Tunes) I tipped you on how to check the AC plug orientation for transformer current leakage—the best sound is often found at the lowest voltmeter reading. Roger Skoff of XLO suggests another technique that's worth passing on to you, if only because the imagery is so . . . piquant: Leave the speaker cables hooked up and pull the interconnects from the power amplifier. Turn it on and "stick your head in the speaker," as Roger puts it, checking for the level of hum. (Imagine a pair of bony audiophile legs waving crazily out of the bell of an Avantgarde Acoustics horn speaker.)

We got a record number of responses last week when we asked readers to share their loudspeaker preferences. Now tell us what <I>drives</I> those speakers.

Advances in audio reproduction typically proceed with tiny steps that, in time, add up to major systemic improvements. In this industry, quantum leaps in basic technology rarely happen. DiAural Doppler decoding may be one of them.

Forget about tuning dots, mystical poker chips, and clocks with programmed electrons. They're all hopelessly out of date.

Any audiophile who stumbles onto one of the more cantankerous audio newsgroups ("wreck audio opinion," anyone?) may wonder what has happened to the modern breed of audiophiles. One suspects that religious wars pale when compared to how some audio pundits jostle against each other! But over the years, there has <I>always</I> been a wide variety of opinion. For a perspective written decades ago that still holds true today, we present J. Gordon Holt's classic "<A HREF="http://www.stereophile.com//features/104/">Why Hi-Fi Experts Disagree</A>."

Okay, let's return to the power grid. In the February installment of "Fine Tunes", we learned that typical domestic 110V AC supplies are derived from that 220V transformer out on the pole. The center-tap 110V supply is unbalanced, but if you take 220V service, you're getting balanced power. One thing you can do is take 220V down to 110V with a step-down transformer. George Cardas swears by it. He's also experimenting with a Statpower Technologies Prosine 1000 Full Square Wave Converter hooked to a big mutha battery to power his front-end components.

Call me na&#207;ve, but I thought the Hi-Fi Wars were merely in-house squabbles. Yes, meter-carrying objectivists and wide-eyed subjectivists can carry on worse than Republicans and Democrats in Congress. But I always figured that once someone cues up <I>Dark Side of the Moon</I> or <I>Kind of Blue</I>, the partisanship subsides as we revel in our common passion for music and sound. C'mon, everybody&mdash;group hug! Okay, I exaggerate.