(Hi-Fi) Rules are made to be broken but only if they first serve as a starting point to which we pay attention.

Rules are made to be broken and I cannot think of a better one to break than that of the Rule of Thirds. When that rule is applied to loudspeaker setup it calls for the room to be broken up into thirds: 1/3 of the room’s longest dimension away from the front wall is where […]

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PS AUDIO: If for some reason your power amplifier puts DC into your loudspeaker you’ll …

Paul McGowan writes: If for some reason your power amplifier puts DC into your loudspeaker you’ll wind up letting the magic blue smoke out and killing your loudspeaker.  ”Magic blue” smoke is engineering humor: it’s what we jokingly say when a component blows up and smoke spews from its innards – “oops, we let the […]

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PS AUDIO: Intermodulation

When we think about distortion products we are generally referring to the harmonic kind. Harmonics are naturally occurring byproducts of sound: a plucked string will generate the intended frequency (called the first harmonic) and then higher versions of that note, each slightly less loud than its predecessor. These higher frequencies are all integers (whole numbers) […]

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Are you nuts?

Paul McGowan writes: When the subject of polite conversation eventually turns to exposing the fact I am an audiophile I get a number of interesting changes in body language. Everything from an eyebrow raise, to a questioning look, to a head shake, as the notion that I am someone not only off the beaten path […]

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SERIOUSLY: Image size?

Paul McGowan … All stereo systems produce a sonic image—some better than others. But, regardless of the image quality, there’s one thing we can say they have in common: a size to that image. If you turn the level of the stereo down to a whisper there’s a tiny image trapped between the speakers. Crank […]

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PS AUDIO: Class is now in session

Paul McGowan … Sorry about the headline, just couldn’t resist.  We are going to start delving into the working of Class D amps, also incorrectly known as “digital amps” and correctly labeled PWM amps – short for Pulse Width Modulation. As is our custom we’ll start with an overview and then get into details. It’s […]

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