Fig.1 D/A Processor with 20-bit resolution, waveform of undithered 1kHz sinewave at -90.31dBFS (16-bit data, 120µV/vertical div.).

Fig.2 Meridian 518, spectrum of undithered 1kHz tone at -90.31dBFS, with noise and spuriae, 16-bit precision.

Fig.3 Meridian 518, spectrum of 1kHz tone at -90.31dBFS, with noise and spuriae, 20-bit precision.

Fig.4 Meridian 518, spectrum of 1kHz tone at -90.31dBFS, with noise and spuriae, 16-bit precision, calculated from 20-bit data with 518 set to "20C16" using the "Shape B" noise-shaping algorithm.

Fig.5 Meridian 518, Bypass mode, waveform of undithered 1kHz sinewave at -90.31dBFS (20-bit data, 120µV/vertical div.).

Fig.6 Meridian 518, waveform of "digital black" with 518 set to "20C16" using the "Shape B" noise-shaping algorithm (16-bit data, 120µV/vertical div.).

Fig.7 Meridian 518, spectrum of 1kHz tone at -115dBFS, with noise and spuriae, 16-bit precision, calculated from 20-bit data using the "Shape B" noise-shaping algorithm and Gain set to "-24dB."

Article Continues: Measurements part 2 »

Company Info Meridian 3800 Camp Creek Parkway Bldg. 2400, Suite 112 Atlanta, GA 30331 (404) 344-7111 www.meridian-audio.com		Article Contents Page 1 Page 2 Page 3 Page 4 Description Measurements Measurements part 2 Letters John Atkinson Follow-Up July 1996