What are the sonic benefits of PFC-based current rectification and conditioning?

Quite simply put, active power factor correction (PFC) rectification and conditioning turns compatible power amplifiers into even more emotionally compelling instruments of music reproduction.

As the active PFC-based front end all but eliminates any hash and residual ripples from the operating current, the switch mode power supplies and the balance of the downstream system are driven by an extremely linear flux of direct current, which lets the circuit operate under nearly ideal conditions.

Most audible parameters are affected and greatly enhanced by the highly purified DC supplied by the PFC-based front end:
  • Staging broadens and deepens along the 3 dimensions, while images of individual instruments and vocalists coalesce and solidify in a virtual space that is alive with the minutest sonic cues.
  • The increased power efficiency of PFC-based front ends increases the authority and macro dynamics of any compatible Rowland amplifier, while maintaining its transient speed to the impressive levels already afforded by its highly regulated switch mode power supplies
  • The absence of electric hash and ripples downstream of the power supplies enhances an amplifier’s ability to render extremely low level detail. Complex harmonic decay, subtle micro dynamics, and vanishingly low amplitude events are resolved with audible ease.
  • Frequency response broadens, from a bass region that is deeper and more pitched than ever before, to a midrange that is textured and never forward, up to a delicate treble that extends further into the highest harmonics with subtle ripples of decaying partials.
Yet, in the end, rational analysis turns into pure emotion. Sonic parameters coalesce into an experiential gestalt, where the listener is magically immersed in a musical whole that transcends the merely compelling.

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Last Updated
24th of October, 2010

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