Have you ever read an amplifier review and encountered the terms Class A, Class A/B or Class D? We explain all.

The goal of audio amplifiers is to reproduce input audio signals at sound-producing output elements, with desired volume and power levels–faithfully, efficiently and at low distortion. Class D amps ...

Figure 2: Class D open-loop-amplifier block diagram. Since most audio signals are not pulse trains, a modulator must be included to convert the audio input into pulses. The frequency content of the ...

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 a… ...

The efficiency and size advantages of Class D audio amplification in battery- powered devices are well known. These advantages are now extended to amplifiers up to 500W, made ...

The benefits of using Class D amplifiers. What to look for when choosing a Class D amp. Making the tradeoff between THD+N and quiescent current. Back in the day (1970s), audio amplifiers like the ...

Class D amps from $130 to $50,000—pulling more ears into hi-fi without demanding you sell a kidney. Solid tech, serious power, and none of the usual overpriced fluff. Finally, affordable doesn’t sound ...

The special sauce: Class D amplifiers, the first real advance in speaker design in decades. These amps were once thought to be appropriate only for low-end audio devices like cellphones. But with ...

The current dumping amplifier is one that combines a small class A amplifier with a hefty class B one, and through feedback trickery uses the combination to remove the crossover distortion of the ...

Musical Fidelity’s new B1xi integrated amp ditches streaming for pure Class A/B power, a quality phono stage, and hi-res digital inputs for $879.