Definition
A DAC (digital-to-analog converter) converts a digital audio bitstream into an analog voltage. Downstream components (preamp, integrated amp, powered speakers) need that analog signal.
Many sources already include a DAC: CD players with RCA outputs, streamers with analog outs, computers, and TVs. A separate DAC is useful when the built-in converter is poor, or when you need better digital inputs.
In a stereo system
Place the DAC after a digital source and before analog volume control. Typical paths:
- Streamer (digital out) to DAC to preamplifier to power amplifier
- Streamer or DAC analog out into an integrated amplifier
- DAC analog out into powered speakers
A DAC output is line level. It does not replace a power amp for passive speakers. Turntables do not need a DAC. They need a phono stage.
