It is often the case in engineering that there comes a point beyond which the performance of an existing technology cannot practically be improved. When this happens further progress requires a totally new approach to be developed.
This is exactly what happened when dCS invented the Ring DAC™. It offers excellent linearity, most notably at the low levels where other DACs fail, and as a result delivers unrivalled technical performance. For listeners this translates into a musical experience of breathtaking clarity and emotional intensity.