If you didn’t know better, you might think the phrase “class A amplifier” was a marketing term to help sell amplifiers. But it is, of course, actually a technical description of an amplifier ...

See amplifier. The amplifier conducts current throughout the entire cycle (360º). The Class A design is the most inefficient and is used in low-power applications as well as in very high-end stereo.

Probably one of the most celebrated amplifiers ever made—the 33/303 two-box pre/power amp system from Quad ... The original amplifier’s Class AB design has been thoroughly revised with ...