My colleague Brent Butterworth has a fantastic new piece on Wirecutter about the recent revival of music on tape cassettes — and why it's so hard to make them sound good, on a very technical level.
— Read the restCDs can flawlessly reproduce the entire range of audio from 20 hertz (half an octave below the lowest note on piano) and 20 kHz (a frequency too high for most adults to hear).
