Jonathan Scull

Balanced Audio Technology VK-150SE monoblock power amplifier

The VK-150SE stands tall at the top of Balanced Audio Technology's range. It and its smaller brother, the identical-looking VK-75SE stereo amplifier (or, sans the Special Edition mods, the plain VK-75, footnote 1), are related to BAT's first amplifier design, the VK-60. The company's partners, Victor Khomenko and Steve Bednarski, eventually realized that they'd made enough upgrades to the VK-60 to warrant a new model designation, and in 2000 they discontinued the VK-60. Bednarski explained that while the VK-60 accepted the upgrades with good results, the BATboys felt that, in order to fully realize the full potential of the 6H30 SuperTube, a new platform would be required. Enter the VK-75SE and VK-150SE.

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Pioneer DV-AX10 SACD/DVD-A/CD player

At the Consumer Electronics Show in January 2001, Pioneer announced the US launch of the DV-AX10, the first of their long-awaited "universal" disc players, previously available only in Japan. Right out of the box, it plays SACD (two-channel only), DVD-Audio, DVD-Video, CD, and CD-R discs. For two-channel operation—which is exclusively how I examined it—and via its easy-to-navigate menus (footnote 1), I set the DV-AX10 to two channels as the default for all modes, including SACD. Except for hybrid discs, which I'll come to presently, the DV-AX10 is, blessedly, a set-it-and-forget-it machine.

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Boulder 1012 D/A preamplifier

The Boulder 1012's is a line-level preamplifier <I>and</I> DAC in one box. Its design and build qualities are icons to elegant engineering know-how. No screws show on the rectangular box of large but not massive proportions, for example, which is all done up in matte aluminum and set off with a few highly polished stainless-steel buttons. The chassis construction uses tongue-and-groove techniques. The sides of the 1012 benefit from styling cues found on Boulder's newer amplifiers. As you can see from the photograph, the look is both elegant and hi-tech in a way very few other manufacturers manage.

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Fine Tunes #41

This episode of "Fine Tunes" is mainly about the care and feeding of speaker drivers. Before I launch into some of the tweaks—a few fairly wild and wacky—sent in by readers, here are two from my own experience.
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