OTHER TECH

TEST BENCH FOR WEB Daniel Kumin

CD AUDIO PERFORMANCE Output level (with -20-dBFS input at 1 kHz): 215 mV Noise level (re -20-dBFS output): -72.2 dB Excess noise (with/without sine tone) 16-bit: +3.85/+3.75 dB quasi-20-bit: +20.8/+20.7 dB Linearity error (at -90 dBFS): 0.1 dB Noise modulation: <0.1 dB <br />Frequency response: 20 Hz to 20 kHz +0, -0.1 dB Distortion at reference level: 0.03%

CD playback was very good, with linearity essentially perfect and noise modulation as good as I've seen. Noise performance was about 3 dB inferior to the very best players, which is still very good. I checked my tests on a FLAC-imported version of our test CD and got essentially identical results - no surprise. Analog-domain record/play frequency response was nearly as good as CD play-only, as was distortion.