In traditional hi-fi systems, the specifications of audio amplifiers emphasized audio quality, but paid less regard to the level of power losses. As the portable hi-fi sector of the audio industry has ...

A little of the old, a little of the new—here's a quick brushup on amplifier lore. Amplifiers are fundamental circuit-design elements. They drive everything from earbuds to antennas. Placed ahead of ...

The final amplifier is the power source of every audio installation. Its job is to convert a small alternating voltage into a powerful signal for driving loudspeakers with as little distortion as ...