Posts contrassegnato dai tag ‘CA6’

My Crest Audio CA6 amp

Pubblicato: 25 giugno 2013 in Elettronica, Musica
Tag:, , ,

A review with some measured data and some modifications to further better this amazing mid-power Pro Amp

I’ve been always fascinated by this line of Pro power amplifiers of the famous brand of Meridian, Mississippi, for several reasons, among which I count

  • Modular construction, there is almost one board for each section: input & and gain, pre/driver & protection, output stage, power supply.
  • “All Transistor” construction, excluding the input like in many Hi-Fi amps, which gives this series a superior sound quality; this is almost an Hi-Fi like amp, and the version with the output binding posts is considered such this way. Moreover there is only 1 ( I say 1) polypropylene capacitor in series with the signal… (I’ll show You later)
  • It uses and advanced (= well engineered ) Modulated Class H output stage, which exhibits no glitches at high frequency during rail switching, also without using RC networks across the switching diode; I simulated the whole circuit with LTSpice and there is always a clean wave and a perfect switch also at 20Khz.
  • Triple Emitter Follower output configuration with a total of 12 output transistors for each channel; this translates into better behavior on lower loads and less distortion, and more reliable operating conditions due to a great number of devices compared to other brands for the same rating, which use typically 8.

(altro…)