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.

Naim Mu-so 2nd Generation music system

The fog hung ominously thick as I climbed the 194 steps leading up to Red Rocks Amphitheatre. I'd been in Denver for the 2018 Rocky Mountain Audio Fest, and the weather had suddenly turned damp and cold—unusually so for early October. Due to dense fog and possible ice, my drive in from another Colorado city had been slowed. Though I'm in good shape, I was unaccustomed to the altitude, which also slowed my pace. So, I was arriving shortly after the opening act had started.

NAD Masters Series M33 streaming integrated amplifier

On the cold and sunny morning of February 19, 2020, a dozen or so audio critics and writers gathered at Gilmore's Sound Advice on New York's far West Side to see some new NAD and DALI products that had been unveiled the prior month at CES. It was a friendly group, and we kibitzed over coffee before clustering in the arranged seats for presentations and auditions. I doubt any of us realized that it would be the last time for the foreseeable future that we would experience this familiar rite.

T+A MP 3100 HV SACD player/streaming DAC

At the 2019 AXPONA, I took part in one of my first official meetings, as editor of Stereophile, with members of the manufacturing community: the German company T+A. They were presenting in the room of Texas dealer Lone Star Audio, which was owned by the late Jim Hench. They had a corner hallway to themselves: two rooms and, at the time when I arrived, a hallway table brimming with coffee and pastries. Fortuitous timing.
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