Digital Processor Reviews

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HiFi Rose RD160 D/A processor

Lord knows I try to keep an open mind, but those good-measuring delta-sigma chip DACs rub me the wrong way. Their processing complexity vexes my mind, and there's never been a reconstruction or upsampling filter that I've been a fan of. Nevertheless, I believe that every audio component must be judged by how it sounds and feels in use.

Weiss DAC204 D/A processor

Weiss Engineering D/A processors are widely known for their high quality, in both home-audio and pro-audio circles. Over several Stereophile reviews, they have always measured well. Oh, and did you know they'd won a Grammy Award? Weiss Engineering founder and chief designer Daniel Weiss won the 2021 Grammy Award for Technical Merit for his pioneering work during the '80s and '90s designing digital equipment for mastering studios.

Fezz Equinox D/A processor

It wasn't long ago that bottom-shelf DACs had this dry, gray, punchy, grainy sound, emerging from a weird mechanical clarity. Their sound reminded me of cheap whisky. The ones that didn't sound like $1 shots replaced the dry grain with some blurry gel. No vitality. No subtle contrasts. No nuance. No air. No atmospherics, no reverberance, and nothing I would call transparency.

Digital's rapidly evolving technology made the next wave of DACs sound strikingly clear and quiet, with some touchy-feely hints of wetness to suggest a more natural transparency. Unfortunately, most of these newfangled wet DACs sounded like distilled water tastes.

For me, digital transparency didn't become truly wet, colorful, or naturalistic until I discovered NOS R-2R converters, which made midlevel four-figure DACs, like my Denafrips and HoloAudio, sound like bits bathed in luminosity. Very relaxed. Grainless. Ektachrome.

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