Cayin RU6 R-2R USB DAC Review It’s been 4 decades since the world’s first modern-day DAC chip was designed and manufactured by a company called Burr-Brown Research Corporation in 1982 (acquired by Texas Instruments in 2000). Most music distributed today is recorded and encoded using a pulse-code modulation (PCM) method.  This approximates and records a measurement of audio that represents sound as samples of the original signal amplitude.  Multibit DACs decode PCM signals with a true 16 or more, a … Continue reading Cayin RU6 R-2R USB DAC Review