And note too that by that criterion, only one channel is 'smiley' compared to the same channel of the Gastwirt; the other is 'frowny' in the treble region (a half-frown?)Also: imagine, for example, the same sort of graph where the 'reference' CD was mastered with muddy highs and inadequate bass compared to the original tapes -- a 'flat' remastered CD from the original tapes would look very 'smiley