Our goal with the Pearl was to duplicate the sound of the Opal in a one box configuration. We have come so close that the difference can only be heard by straining one's ear in comparative listening and them only with the highest all around matching components. To come so close while reducing the cost by one third represents a monumental achievement. All this was accomplished while maintaining our high standards of parts and construction. This superbly crafted linestage also comes with a 20 year extended warranty on parts and labour.