It’s a simple yet elegant circuit with fewer parts than an equivalent class AB amplifier, and there was a time back in the day when it was all the rage. This one has an op-amp providing the ...

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.

The stereo amplifier promises improved performance and versatility while maintaining an entry-level price tag.

Audiolab 's new 6000A MkII stereo amplifier teases improved performance thanks to its enhanced internal circuitry.

What will most win fans over to the Rega io, though, is its class-leading performance. Those who are happy with a simple, no-fuss, purely analogue amplifier and prioritise entertainment should ...