If you have the time, read through https://www.stereophile.com/content/pdm-pwm-delta-sigma-1-bit-dacs https://www.stereophile.com/content/pdm-pwm-delta-sigma-1-

If you have the time, read through https://www.stereophile.com/content/pdm-pwm-delta-sigma-1-bit-dacs https://www.stereophile.com/content/pdm-pwm-delta-sigma-1-bi... The short answer is that a commodity 1-bit DAC operating highly in excess of 44khz sounds a lot better than the earlier commodity DACs from the 1980s. The above link explains a lot of the problems that those DACs had, like the "zero crossing problem."