Contents now include six completely new tracks and a few replacements, and the total time is more than 76 minutes. In this, the fourth test record, the three basic concepts of Depth of Image, Timbre and Dynamics have been linked together as a basis for evaluation of HiFi equipment.

It's a must-have disc that satisfied our criterion: it is musically compelling and superbly recorded. What distinguishes the Opus disc is the careful attention made at each session to ensure the performers voices and instruments, the natural ambiance and acoustic of the venue is captured faithfully onto the master discs. When combined with the comprehensive liner - notes, the Opus 3 disc can really be thought of as an easy and pleasant guided tour through the art of Hi-Fi.