J. Gordon Holt

What, a high-fidelity product from Magnavox? The company that 20 years ago had a reputation for building massive, polished-console boom-boxes and was scornfully referred to in audiophile circles as "Maggotbox"? Some important things have happened to Magnavox since those days. Mainly, it became a subsidiary of the Dutch Philips company, co-developer of the laser video disc and now the audio Compact Disc. The Magnavox CD players are actually made by Philips for US distribution by Magnavox.

Editor's Note: 40 years before it became a reality, J. Gordon Holt predicts music streaming and predicts the Compact Cassette will become the dominant prerecorded music medium.

Traditionally, the New Year is the time when editors light their pipes, tilt their chairs back, fold their hands and shut their eyes, and make bold predictions about The Future. It is said that prognostications are always risky, because events have a nasty habit of making fools of those who prognosticate. It has been our observation, though, that the only prognosticators who are remembered are those who were proven right, so we are going to do some fearless limb-climbing about something that is coming to worry increasing numbers of stereophiles: Namely, which of all the current recording media is going to become The Standard for home use, and which are going to be left stranded on the shoals of obsolescence?

PSB is a small, Toronto-based manufacturer that has been collaborating with Canada's National Research Council to try and take some of the guesswork, some would say magic, out of loudspeaker design.

The NRC, financed by the Canadian government, does basic research in many technological areas and makes its findings available to any firm wishing to use them. (Most other countries provide or encourage this kind of government/business cooperation. It is against the law in the US, to our great disadvantage.) The NRC's audio division, headed by physicist Dr. Floyd E. Toole, has devoted the last several years to the rather formidable task of defining, and assigning numbers to, the various aspects of loudspeaker performance that affect listeners' subjective assessments of their sound.

This is something we don't see too often: an entirely new approach to power amplifier design. As Quad points out in its literature for the 405, class-A operation of transistors provides the lowest distortion, but drastically limits the amount of power an output transistor can deliver without overheating. (Most transistor amps use class-AB output operation, in which each of a pair of power transistors handles part of each signal cycle and shuts down during the other part. Imperfect synchronism between the two halves causes the familiar "crossover distortion," which accounts for most solid-state sound. In class-A operation, each output transistor draws current though the entirety of each signal cycle, eliminating the crossover transition but doubling the amount of time current is drawn, and thus tending to cause the transistor to heat up more.)