LATEST ADDITIONS

Nagra's VPA amplification system consists of two slim, handsome monoblock amplifiers intended for vertical placement. They look good adjacent to the speakers. However, two 845 tubes put out a <I>lot</I> of heat, so the amplifier should be at least a foot away from your speakers...unless you're <I>looking</I> for a nice crackle finish.

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.

Last week saw a flurry of announcements in the online audio and video streaming business, capped off by <A HREF="http://www.yahoo.com">Yahoo!</A>'s acquisition of <A HREF="http://www.broadcast.com">Broadcast.com</A&gt;. Yahoo! says it has signed a definitive agreement with Broadcast.com whereby Yahoo! will issue 0.7722 of a share of Yahoo! common stock for each share of Broadcast.com common stock. In addition, all outstanding options of Broadcast.com will be converted into Yahoo! options. The acquisition is expected to be completed in the third quarter of 1999 and is valued at around $5.7 billion, including $4.8 billion in Broadcast.com common stock and $900 million in stock options.

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 They're all hopelessly out of date.

History teaches us that the full flowering of any social phenomenon takes place after the seeds of its destruction have been sown. That tourist magnet, London's Buckingham Palace, for example, was built decades after the English Revolution and the Restoration had redefined the role of the British monarchy as being merely titular, and made the elected Parliament the real seat of power.

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.