Digital Processor Reviews

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Mytek HiFi Brooklyn D/A processor–headphone amplifier

When I moved to New York City about a year ago, I was prepared to dislike Brooklyn. Judging it by its reputation as the apotheosis of cool, I envisioned the borough full of good-looking people engaged in pointless acts of mindless, stylish conformity, from man-buns to single-origin pour-over coffee. (Anyone up for adult kickball?) As I've written before, about Portland, Maine—a hipster place much indebted to Brooklyn—I greatly prefer deeply committed idiosyncrasy to mindless conformity.

T+A Elektroakustik DAC 8 DSD D/A processor

"They're so damn hard to tell apart!"


So exclaimed my longtime pal and fellow audiophile Bruce Rowley when I revealed to him that T+A Elektroakustik's new DAC 8 DSD digital-to-analog converter ($3995) had arrived for review, just after I'd finished writing up the Ayre Acoustics Codex DAC–headphone amp ($1795). Bruce had recently compared his own brand-new Codex with a DAC he'd owned for a couple years, both costing about the same but built to very different designs. He was surprised that, after carefully matching levels and working to eliminate any other variables, they sounded more alike than not, and only slightly different even after hours of listening. Technically, these were two very different animals.

Moon by Simaudio Neo 230HAD D/A headphone amplifier

I am a lucky person. Who gets to be an artist, an aspiring griot, and a Stereophile reporter? Who gets to stay at home in paint-smeared pajamas, draw pictures of teapots and barn owls . . . and then, on top of everything, gets paid to listen to music made by Henryk Szeryng, Eugene Hütz, and Winston Reedy? C'est moi!


I have groovy friends, too: other eccentric artists, scruffy musicians, recording and mastering engineers, beekeepers, authors and editors, art and junk collectors, tube wizards, turntable savants, DJs, Mensa-type amp designers, bat-shit-crazy poet-philosophers, and unrepentant hoarders.

AudioQuest DragonFly Red & Black USB D/A headphone amplifiers

Approximately 331/3 years after AudioQuest's first phono cartridge, the company announced two new USB D/A headphone amplifiers: the DragonFly Black ($99) and the DragonFly Red ($199). Both have circuits designed by the engineer responsible for the original DragonFly—Gordon Rankin, of Wavelength Audio—and both have the novel distinction of requiring considerably less operating power than their predecessors, so much less that the new DragonFlys can be used with iPhones, iPads, and various other mobile devices.

Moon by Simaudio Evolution 780D D/A processor

Simaudio saw disc-based digital audio in its rear-view mirror at least as far back as 2011, when it introduced the Moon Evolution 650D and 750D—two iterations of what it called a "digital-to-analog converter CD transport." These were actually multiple-input CD players, but Simaudio was evidently so eager to distance itself from the spinning disc that it went with a product category that, in spite of its cumbersome, run-on name, drew a clean line between the disc-reading and signal-processing functions—while bestowing upon the former second-class citizenship.

Ayre Acoustics Codex D/A headphone amplifier

I first spied the Ayre Codex two Januarys ago, at the 2015 Consumer Electronics Show, and its scrappy proletarian vibe sure made it look different from any other Ayre creation. On learning that its price would be well under $2000, I was immediately curious what Charley Hansen and his gang—makers of the $3450 QB-9DSD USB digital-to-analog converter, plus a few five-figure amps and preamps—could create when cost is an object.

Meridian Explorer2 D/A headphone amplifier

I was lying on a mattress on the floor of an empty apartment on Manhattan's Upper West Side. Not as grim as it sounds—it's a nice apartment, and the mattress was new, and had just been delivered—but it was hot (no air-conditioning), and my family and my furniture were still in my condo up in Maine, and I was lonely. I needed some cheering up. Which is how I rationalized the decision to buy an Explorer2, Meridian Audio's tiny, inexpensive ($299) digital-to-analog converter.

PS Audio NuWave DSD D/A processor

Researchers at MIT recently discovered a "music channel" in the human brain. These neural pathways respond to all kinds of music—and only to music. "A listener may relish the sampled genre or revile it," Natalie Angier wrote in the New York Times. "No matter. When a musical passage is played, a distinct set of neurons tucked inside a furrow of a listener's auditory cortex will fire in response"

Chord Electronics Mojo D/A headphone amplifier

Like all men, I learned at an early age to resist the allure of a pretty face.


Okay—I learned that I should try to resist the allure of a pretty face.


Okay, I confess: I have never been able to resist the allure of a pretty face. Which is why, when I first clapped eyes on the Mojo D/A headphone amplifier from English company Chord Electronics, at an event hosted by Manhattan retailer Stereo Exchange, I had to borrow a sample for review.

Audio Note CDT One/II CD transport & DAC 2.1x Signature D/A processor

I don't know much about horses, but I've been given to understand that dead ones don't respond to even the severest beating. In light of that, I'll make only this brief statement—Even with the best playback gear of my experience, I don't derive as much pleasure from CDs as I do from LPs.—and move on to a simpler truth: Regardless of what I think, CD players are still a necessity for most music-loving audiophiles.
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