I do agree with you about the relative importance of the speakers in an audio system. I can't comment on the relative importance in percentage terms, but a good speaker can sound very good with mass market electroncs (as did the Summa) while even the best electroncs can't mask the limitations of a poorly designed speaker. The room is also an important factor, as is the quality of the recording. Some highly compressed and equalized recordings wouldn't sound very good in any system.