Channel Classics Continues With SACD
Channel Classics Continues With SACD
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I've noticed several CDs that cause large subsonic woofer excursions. One clear example is Stevie Wonder "A Time to Love". This CD has a lot of real bass, but it also has this subsonic ringing throughout the CD.
Looks by eye to be close to 1 Hz. My guess is that something in the recording chain had a regenerative ear below the audio band. This means that it is close to being an oscillator at that frequency but without enough gain to sustain oscillation. Then every bass note that comes along, kicks the system and makes it ring at that very low frequency.
In his recent Gizmodo article, "Why We Need Audiophiles," John Mahoney ventured: