Media Server Reviews

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Antipodes Audio K50 music server

On the face of it, playing and streaming digital music files is a straightforward process. You direct data from various sources—some local, some "in the cloud"—perhaps via a reclocker/signal conditioner to a digital-to-analog converter (DAC). "And the music comes out here."

Not so simple. Bits, it seems, aren't bits, or not only. A digital datastream is also an analog signal. Noise and other signal errors endemic to multi-function computers not designed primarily for music playback can affect how music sounds. And then there are the practical issues of setting up and connecting everything optimally, and then organizing music files correctly, which can be especially difficult when ripping files from multidisc sets.

exaSound Delta Music Server

A digital front end comprises several elements: data storage, library management, program control, signal distribution, signal conditioning, and digital-to-analog conversion plus all the necessary interconnections. All this can be contained in a convenient single box, or it can be distributed.

Grimm Audio MU1 music streamer

In 1979, I visited Philips Electronics' renowned Research Center in Eindhoven, Holland, to examine a prototype of what would eventually be called a compact disc player. In 1989, I returned to the Eindhoven lab to witness the birth of the first sigma-delta DACs, which eliminated the problem of large linearity errors at low recorded levels in resistor-ladder DACs.

Volumio Primo music player/streamer

Is this all there is to it? I had done some superficial investigations of Volumio online, after the Primo was suggested to me for review. I had learned that the Volumio player software is available for several hardware platforms including Windows, Mac, and Raspberry Pi, but I had not tried it before. I discovered Volumio's reputation as an efficient, Linux-based music player, installable with an SD card on minimal hardware and said to support virtually all music formats and resolutions including DSD and multichannel. But I had not experienced any of this for myself.

Innuos Statement music server

We carry within us the wonders we seek outside us.—Rumi

There are plenty of difficult obstacles in your path. Don't allow yourself to become one of them.—Ralph Marston, The Daily Motivator

Put these two quotes together, shake vigorously, and you've got the essence of a music server. Unless your container isn't tightly sealed, in which case you've got a mess.

Mytek Brooklyn Bridge streaming DAC/network server

A DAC/preamp/headphone amp from Class A of Stereophile's list of Recommended Components, updated with streaming and network-server capabilities—and it still sells for less than $3000? If you believe that, I have a bridge I'd like to sell you. (Har, har!)

Most Americans have heard that line before, but many may not know the story behind it—I didn't. George C. Parker, a real American person born in 1860, is famous for perpetrating audacious frauds, specifically sales of property he did not own and could not possibly have owned. He is reported to have sold the Statue of Liberty, Grant's Tomb, the original Madison Square Garden, the Metropolitan Museum of Art, and—most famously—the Brooklyn Bridge that last one twice a week for several years, at prices ranging from $75 to $5000. Or so some say.

Sony DMP-Z1 digital music player

Apple may not have been the first to market with a portable digital audio player, but its original iPod defined the genre: a device small enough to fit into a shirt pocket. When companies like Acoustic Research, Astell&Kern, Fiio, HiFiMan, and Questyle introduced portable players that could play high-resolution files, they echoed the iPod's form factor. The exception was the Toblerone-shaped PonoPlayer, but even that was small. The subject of this review is another exception: The DMP-Z1, from Sony's Signature Series, is comparatively enormous—almost the size and weight of a regular preamplifier. At $8500, it's also considerably more expensive than other players.
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