I measured the ATC CDA2 Mk2 using my Audio Precision SYS2722 system (see the January 2008 "As We See It"). Looking first at its performance as a CD player, the CDA2 Mk2 had the best error correction I have ever encountered, playing every track on the Pierre Verany Digital Test CD without glitches. This included the track with a single 4mm gap per revolution in the data spiral, and the track with repeated 3mm gaps! (The Compact Disc standard, the so-called "Red Book," requires only that a player cope with gaps of up to 0.2mm.)
As the output RCA jacks had…