Digital Processor Reviews

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.

In the summer of 2021, MoFi Distribution's Jonathan Derda emailed me about the South Korean HiFi Rose brand. "This brand strikes me as being the spiritual successor to the original SlimDevices Transporter and Squeezebox Touch," he wrote. "We're all really excited about it."

The email from Herb Reichert was intriguing. "I am, with great difficulty writing about HoloAudio's new two-chassis May DAC," he wrote. "It is death quiet and very natural. It makes every recording sound non-digital."

Once Herb had finished writing his review of the HoloAudio for the August issue's Gramophone Dreams column, I sped to his Bed-Stuy bothy and grabbed the May DAC, both to get it on my test bench and to take a listen for myself.

No history of the computer-audio marketplace could be complete without some mention of High Resolution Technologies, the California company whose Music Streamer was, in 2009, the first perfectionist-quality USB digital-to-analog converter to sell for as little as $99. One could argue that HRT's entire business model has contributed to shaping our attitudes toward the hobby: Because digital-audio technology continues to evolve at such a rapid pace, HRT has introduced a succession of newer and ever more effective Music Streamers, occasionally to the obsolescence of their predecessors; yet because those products have all been so affordable—remarkably and laudably so, given their thoroughly American provenance—we tend not to mind.

Art Dudley and others have covered the first products released by HRT, and now the company has added to its product line a Pro version of its Music Streamer, which sports balanced circuit design from tip to tail.

Housed in the same simple, functional, six-sided case of extruded aluminum as HRT's other products, the Pro is painted a bright blue to distinguish it from the Music Streamer II (red) and Music Streamer II+ (gray). At 5.6" it is also a tad longer than the others, and includes a single B-type USB 1.1 jack centered on one end, and two small, fully balanced TiniQ output jacks on the other. More about these special mini sockets later.

Every now and then an affordable product comes along that's so good, even wealthy shoppers want it. Past examples in domestic audio include the Rega">http://www.stereophile.com/turntables/184rega">Rega RB300 tonearm, the original Quicksilver Mono amplifier, the Grace F9E phono cartridge—even Sony's unwitting CD player, the original PlayStationhttp://www.stereophile.com/cdplayers/708play">PlayStation;. Based on word of mouth alone, one might add the HRT Music Streamer+ to that lauded list.

My little corner of Brooklyn happens to have a terrific little record shop. I like it for the usual reasons: well-chosen merchandise, fair prices, fun music on the speakers while you browse. But I like it just as much because great record stores tend to resemble one another in more idiosyncratic ways, and this one has the earmarks of the great record stores of my youth.