Where Measurements and Performance Meet featuring Andrew Jones
Electrocompaniet + Ø Audio at High End Munich 2025
Sponsored: Pulsar 121
High End Munich: Audio Reference "Most Exclusive System Ever" with Wilson and D'Agostino
Silbatone's Western Electric System at High End Munich 2025
Sponsored: Symphonia
CH Precision and Audiovector with TechDAS at High End Munich 2025
Innuos Unveils Stream3 & Stream1—Modular Server/Streamer Lineup Explained | AXPONA 2025
Sponsored: Symphonia Colors
KLH Model 7 Loudspeaker Debuts at High End Munich 2025

LATEST ADDITIONS

MiniDisc Makes Headway

Four years after its first unsuccessful foray into the American consumer marketplace, <A HREF="http://www.sel.cony.com/">Sony</A>'s MiniDisc appears finally to be winning serious numbers of converts. Several large-scale retailers, including Best Buy, Circuit City, Service Merchandise, and (soon) Sears department stores, have dedicated MiniDisc displays, with home recorders, portable players, and blank discs available individually or as a package deal. The displays were built with Sony's support, according to Mike Viken, senior VP for Sony's personal audio/video marketing division.

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Fine Tunes #5

I've touched on loudspeaker placement in irregularly shaped rooms several times in the last few "Fine Tunes," but reader Peter Machare (Peter.MACHARE@usda.gov) wants more information about setting up L-shaped and other nonstandard listening areas. Here's how he describes his layout: "I have an L-shaped room. The speakers are at the bottom of the L and point up the long part of the L. Not all of us are perfect rectangles, you know."
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PS Audio Reborn

We'd been playing phone tag for a couple of weeks, but Paul McGowan was finally tethered to a handset as he explained to me a product from his "new" company, the reincarnation of <A HREF="http://www.psaudio.com">PS Audio</A>. "Everything you've ever wanted in a power conditioner---times 10---with none of the drawbacks!" McGowan could hardly contain himself while pitching his latest brainstorm. He certainly had an intriguing idea, but the path from founder of PS Audio back in the late '70s to <A HREF="http://www.gen-tech.com">Genesis Technologies</A> and back again was nearly as interesting.

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Mordaunt-Short, Epos, Rogers to close UK manufacturing.

It had to happen eventually. Britain's internationally successful loudspeaker manufacturers tend to be highly geared exporters, with overseas markets often accounting for 80-90% of sales. The dramatic downturn in sales across virtually all Asian markets, alongside the collapse of the Russian ruble and an ever-strengthening pound sterling, has been making life very tough indeed.

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Consumer Reports Online Gives Cybertour of its Testing Labs

Long the bane of finicky audiophiles, <I>Consumer Reports</I> magazine has been measuring just about anything sold in a store since 1936 in an effort to "test products, inform the public, and protect consumers." But when they get around to testing audio gear, the magazine's "lab" has become the target of many audio enthusiasts who don't share <I>CR</I>'s views on how to tell good sound from bad. In fact, part of the problem is that <I>CR</I> often reports that sound quality is not always the final factor in rating a product, with concerns about reliablity, ease of use, and fit and finish often skewing results.

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Class-T Amplifiers Announced

It's well known among designers of power amplifiers that the class-A and -A/B amplifiers (referred to as linear amplifiers) used in the majority of car, home, PC, and pro audio systems are notoriously inefficient. They can consume vast amounts of power and yet waste most of it---as much as 80% or more---as heat. They require large power supplies and massive heatsinks, which drive up system weight, size, and cost. On the other hand, class-D amplifiers, using Pulse Width Modulation switching technologies, have good power efficiency but sometimes questionable audio fidelity. (The Spectron designs are possibly the exceptions here.) Class-D amps are used mostly in battery-powered applications in which sound quality might be considered secondary to battery life.

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