In an audio power supply the capacitors have the dual role of filtering and providing an impulse reservoir for the supply in the event of a peak in demand imposed by the music being played.

Power supply design is a broad field ... like this discussion of how to build high quality audio amplifiers for ham radio use.

But Audio Research’s new Reference 330M monoblock ... is a fully balanced pentode design with a hybrid power input and power ...

Wattson Audio, the high-end Swiss audio brand known for its precision engineering and minimalist design, has expanded its product lineup with the introduction of the powerful new Madison Amplifier .