Digital Processor Reviews

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Mytek Digital Brooklyn Bridge II Roon Core preamplifier

The concept of streaming digital music files over distances great (as with internet-streaming services like Spotify, Qobuz, Tidal, etc.) and small (from a home-PC hard drive, NAS, or networked music server) became mainstream only recently. But it was already brewing during the late 20th century, with people illegally downloading low-bitrate MP3 files made from CD rips and coming close to killing the recorded-music industry.

That wasn't streaming exactly, or not in the current sense, because the files needed to be downloaded, stored locally, then either played out of a computer or loaded onto a portable player, but from that point forward it was a steady march to the streaming-dominated present.

Never mind Napster—the first subscription audio "streaming" service was one you probably wouldn't think of: Audible, the audio book service now owned by Amazon, which started up in 1995. I did beta testing and editing work for early-days Audible, and around that time, I started loading up home-ripped MP3 files on a pocket-sized Rio MP3 player (which by then had replaced Audible's proprietary player), using it in place of a portable CD player. This led to experiments with a PC music library/player running Linux, controlled by a Handspring PalmOS device connected to the stereo system via a Sound Blaster 16 card.

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.

Mytek HiFi Manhattan II D/A preamplifier-headphone amplifier

In equipment reports, I use the phrase forward momentum to refer to something a little deeper and more encompassing than what's meant by that well-worn Brit-fi expression pace, rhythm, and timing (PRaT). Pace refers to the speed at which a piece of music is being played, and the accurate reproduction of that speed requires audio sources with good dynamic pitch stability. (Digital folk always lord it over LP clingers for digital's superior pitch stability.)

Mytek Liberty D/A processor

I've never aspired to owning a BMW 7-series, or a Martin D-45, or a Rolex Submariner: BMW's far less expensive 3-series models capture my imagination by bordering on the affordable, likewise Martin's D-18—and as long as I live, I'll never understand the appeal of expensive wristwatches. Bling's not my thing.

True to form, when I visited the Mytek display at High End 2018, in Munich, my attention was drawn to the brand-new Mytek Liberty DAC and its three-figure price: for $995, one could now own the equivalent of the original Mytek Brooklyn D/A processor, without that model's phono preamp—this according to the company's Adam Bielewicz, who served as my product-line guide on that sunny May day.

NAD C 3050 LE BluOS streaming integrated amplifier

Stereophile has favorably reviewed many NAD amplifiers over the decades. One of the most recent was the Master Series M10 class-D streaming integrated amplifier, which I purchased to use as my daily driver after I reviewed it in January 2020. The M10's price included a free license for Dirac Live low-frequency room equalization, which I found invaluable with my long-term reference standmounts, the KEF LS50s. So when I learned that NAD was introducing a 50th Anniversary integrated amplifier, the C 3050 LE, which also included Dirac Live, I asked for a review sample.

NAD M51 Direct Digital D/A converter

Who wants only a digital-to-analog converter when you can have a DAC with benefits? How about if those benefits also come with some high-resolution attitude?

That's what I pondered while setting up the NAD M51 ($2000). Sure, it's a basic DAC, but it also has extras—like HDMI inputs, remote-controlled volume, a polarity switch, and one of my favorite features on any DAC: a display that tells you which sampling rate the thing is locked to.

NAD M66 streaming preamplifier

In my early years in audio, I witnessed the rise and fall of the AM-FM receiver, first in vacuum tube mono and later in solid state stereo. Some of them grew to be behemoths, supporting multiple inputs, equalizers, dual speaker zones, and powerful amplifiers. When radio sources receded in popularity and with the rise of CDs, cable TV, and DVD, radio receivers were replaced by A/V receivers in the mainstream market.

Today, the ascension of streaming as the conduit for both audio and video content has nudged these, too, from the center stage. One can stream content from the bewildering variety of products with internet access including cell phones, smart TVs, almost any computer, and of course, dedicated streaming devices from the cheap-and-cheerful to seriously audiophile. If your music is on the web or on a NAS, many of these will let you browse for it, find it, and play it.

NAD Masters Series M32 DirectDigital D/A integrated amplifier

When I asked NAD for a sample of their Masters Series M50.2 digital music player, which I reviewed in the December 2017 issue, they also sent me a Masters Series M32 DirectDigital integrated amplifier, which had also been introduced at the 2017 Consumer Electronics Show. Costing $3999, the M32 offers a continuous power output of >150W into 8 or 4 ohms. The M32 is the same size as the M50.2, and its smart-looking combination of matte black and gray-anodized aluminum panels make it look identical to the player, except for the black volume-control knob to the right of the front panel's four-color touchscreen, and the ¼" headphone jack at bottom left. It even has the same eight ventilation grilles inset in the black top panel.

Nagra DAC D/A processor

Without having intended to, I seem to have collected several "statement" products. I've already reported on the Weiss">http://www.stereophile.com/digitalsourcereviews/781">Weiss Medea and Theta">http://www.stereophile.com/digitalsourcereviews/204theta">Theta Digital Generation VIII digital-to-analog converters. I saw and expressed interest in the Nagra DAC at the 2002 Consumer Electronics Show, when prototypes of it were shown along with a forthcoming multichannel version, the Nagra Digital Audio Processor (DAP). The two units are based on the same chassis and interface, the DAP including additional modules and processing.

Naim ND5 XS 2 media player

The late Julian Vereker, the sharp-minded former racing driver who founded Naim Audio and designed its first products, did so because he wanted audio amplification of a quality he felt no one else was making at the time, reasoning that if he wanted such a thing, so might others. Thus came about Naim's first domestic-audio product, the distinctive NAP200 solid-state amp (1973).
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