Tube Output Stage

Based on the auditions that I made and the reviews that I read, it seems that a digital player with a tube output stage is increasing its soundstage and solidifying its sonic image, aside from adding the air and smoothness signatures characteristic to the vacuum tubes.

Measuring With MLSSA

Measuring With MLSSA

Wouldn't you just know it. As soon as I decide on a formal regime of measurements to accompany Stereophile's loudspeaker reviews—see Vol.12 No.10, October 1989, p.166—along comes some hot new technology that changes everything. Robert Harley reported in last month's "Industry Update" column how impressed he and I were with the new MLSSA measurement system from DRA Laboratories.
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