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In Reply to: RE: Modern (bit) lossless digital volume control posted by Leo loves music on April 13, 2025 at 12:07:50
The internal architecture in most modern DACs is 32-bit so if you're playing 24 or 16-bit material you have 'lots of extra bits' to spare with no perceptible impact on resolution, dynamic range, or THD+N.That being said, my DAC actually incorporates a digitally controlled relay stepped attenuator using discrete PCB mounted resistors in it's volume control. I can set volume in 0.5dB or 1.0dB steps. 100% repeatable volume levels and more accurate stereo tracking than the typical dual-gang analog potentiometer. That's another way to do it, since you asked.
Edits: 04/14/25 04/14/25
With respect, your DAC is 32 bits. But it uses relays to do the volume control. Is the volume control analog or digital?
Digitally switched analog. Relays are digitally controlled. Discrete resistors in the stepped attenuator are analog.
My CJ Premier 17LS2 preamp has the exact same style volume control as yours, i.e. digital controlled (switched) relays with analog resistors.On the order hand, my Benchmark DAC3 HGC has a pure digital volume control. I do wish they could have a better design.
Edits: 04/14/25
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