Harman's 'How to Listen' is an excellent tool for anyone serious about loudspeaker design or comparison. Using short loops of music, you identify the frequency range of EQ that has been added to the track. It starts with simple Treble/Mid/Bass and each increasing level adds another band. Your ears learn to listen for boosts or nulls in specific frequency ranges.
I cannot get past level 4 on a laptop. Decent computer speakers or monitors are needed!
