These are stationary iPod's.
They are called music servers as most of them support multi room so can act as a server for other players but all of them are able of direct playback.
The idea is nice; you have 1 box which does it all.
Comfort is the name of this game.
It has the look and feel of conventional audio equipment. Connect it to your amplifier just like a CD player and there you are. Some brands even stresses that they are NOT a computer.
What do you get?
Well, a computer running Linux or Windows with some proprietary software to manage your music collection and in general a very small display and a sound card. A computer in disguise.

These are the internals of a Meridian - Sooloos Source:One
From left to right:
Price €3,600.00
A silent PC combined with a high quality sound card or an outboard DAC will probably:
But you do have to do your own homework.
Buying a music server means a couple of engineers has done your homework.
A great comfort but, yes, engineers need payment too.
If you go this in general a bit expensive way there are a couple of things you better check.
The music server is your tool to store and maintain your collection.
Beside sound quality, you should also check the ease of use.
I'd personally not write out a blank cheque to so-called audiophile music servers; nor their rationale as a species. I view them as generally overpriced, more or less kludgy and suffering compromised graphic user interfaces. For every big-screen Sooloos done right there's an Olive with a squinty window. For me an iMac, MacMini + iPad remote or equivalent Windows/Linux system generally offer better functionality for significantly less coin.
| Specs | |
| Frequency response | 20 Hz - 20 kHz |
| Distortion factor | < 0,002 % |
| Channel separation | > 102 dB |
| Signal-to-noise | > 103 dB |
| Audio inputs analogue | 1 x stereo cinch |
| Audio outputs analogue | 1 x stereo cinch |
| Audio inputs digital | SPDIF (coaxial and toslink) |
| Input sample rate | WAV: 8 - 48 kHz |
| Audio outputs digital | SPDIF |
| Video outputs | VGA |
| Weight | 15 kg |
| Dimensions inc. feet’s | 44 x 8,8 x 38 cm |
| Power supply | 110 / 230 Volt |
| Disc drive | CD/DVD-Drive |
| Used memory | Audio formatted memory with damped suspension |
| Memory size | 160 GB, 500 GB, 750 GB |
| Backup function | Yes |
| Cooling | Heat pipe System without fan |
| Networking wired Ethernet | 10/100 m/bits |
| Networking wireless | By USB-stick |
| Encryption | Following Rules |
| Other ports | USB 2.0 |
| Finishes | Silver, black |
| Technology platform | Linux |
| Supported media | CD, CD-R/RW, DVD (only playback) |
| Audio support | MP3 (32 kBit/s - 320 kBit/s), WAV, FLAC |
| Supported formats | TCP/IP, UPnP AV, DHCP, AutoIP |
| Supported data systems | FAT, FAT 32 |

Totally silent, fanless music oriented media server, no hard drive, no noise and extremely fast access
Automatic optimized distortion free ripping with multi read error correction
Maximum sampling frequency: 192 KHz
AES/EBU and S/PDIF digital output
Clock generator with extremely low jitter Signal to noise ratio on digital output: 117 db
Storage capacity: 512 Gb (SSD)
Extension until 2.4 Tb. 32 Tb xcan be reached with external storage unit
Size: width: 43cm, Height: 17cm Depth: 43cm
Weight: 25 Kg
User friendly interface available in 7 languages.
Touch sensitive universal Remote Control delivered as standard.
OS: Win7
STV3 € 11.000,- (no DAC, digital out only)
SDV3 € 19.200,- (with DAC)

Remote control € 930,- (19" touch screen)

Bladelius Design Group is offering a totally new replay system. The Embla offers a silent playback system without any moving mechanical parts when playing from the built-in flash memory. The Embla is built from the ground up as a high performance audio playback system.
Unlike computer based playback products the Embla is based on our proprietary audio DSP design, allowing complete control over the timing and reading of the discs. The Embla is designed as a true audiophile unit from the ground up and it's not a modified computer that can copy discs. Not only is the Embla a playback system but it also includes an analog preamplifier, a world class DA-converter based on our reference CD-player, the Gondul M. The DA-converter also carries a switchable digital filter with analog behavior. Insert a CD and you have the option to play directly from the disc like a standard CD-player or you can store the disc on the internal flash
| Specs | EMBLA |
|---|---|
| Distortion | < 0.001% |
| Data rate | 32 bit/192kHz |
| Digital inputs | 1 AES/EBU 1 RCA 1 TosLink 2 USB 1 RJ45 1 Bluetooth |
| Analog inputs | 1 pair balanced 2 pairs unbalanced |
| Digital outputs | 1 AES/EBU 1 RCA 1 TosLink |
| Analog outputs | 1 pair balanced 2 pairs unbalanced |
| Control | Touch screen Remote |
| Weight | 12 kg |
| Dimensions | 440×445×125 mm (W×D×H) |


2 TB + € 100

| CD Player | Type | Slot loading | |
| Format |
CD, CD-DA, CD-R, CD-RW, DVD-R/RW | ||
| MP3, FLAC, WAV, WMA, M4A, AAC, Ogg Vorbis, PCM, PLS, M3U |
|||
| Amplifier | Output | 30W+30W @1KHz, 8Ohm, 1% THD | |
| Headphone | 100mW+100mW @1KHz, 16Ohm, 0.1% THD | ||
| Line out | 2Vrms @1KHz, 0.1% THD | ||
| Display | 3.5" color-TFT LCD | ||
| Input |
Line(AUX)-in (recording) | ||
| output |
Line-out,speaker,headphone, SPDIF(Optical out) | ||
| Connectivity | Netzwerk |
Wired | Ethernet(10/100) LAN |
| Wireless (Optional) | 801.11b/g/n WiFi USB Dongle | ||
| USB | Host X 2ea | High speed 2.0 Host port | |
| Target X 1ea | High speed 2.0 Target für PC | ||
| Audio formats | MP3, FLAC, WAV, WMA, M4A, AAC, Ogg Virbis, PCM, Playlist(PLS, M3U) | ||
| HD | Type | 8,9 cm (3.5") SATA(1/2) (*up to 2 Terabytes) | |
| File system | NTFS/FAT32 | ||
| Language |
deutsch, englisch, französisch, koreanisch, spanisch, russisch, portugiesisch, türkisch, griechisch, tschechisch, hebräisch | ||
| Power |
AC adapter(24V/3.5A) | ||
| Dimensions |
18(W) X 9.8(H) X 14.7(D) cm | ||
| Drive Mechanism | 24x Slot-loading disc drive for music loading |
| Hard Drive | 1 Terabyte SATA |
| Formats | .flac, mp3, .ogg, .wav, .m4a, .wv |
| Digital Outputs | USB 2.0 |
| Digital Output Rate | 24 bit 96 kHz Max |
| Ports | USB, Ethernet |
| Power Input | 100-240VAC, 50-60 Hz, auto-switching |
| Power Consumption | ~30 Watts |
| Weight | 8 lbs |
| Dimensions | 3.25" H x 11 " W x 12.5 " D |

fan-less mini-PCIE motherboard running Linux
Cary MS-1 Server Revealed on AudioAsylum
IP-based digital distributed audio system.
Colorado old model Vibe was a hard disk player. The new model is a true server solution.
The Color Touch screen includes a Class D amplifier.
Network: ethernet
6 independently- controlled streams
500/750 GB HD

Network: ethernet
160 - 750 GB HD
Supported Audio Formats:
ENCODE: MP3, FLAC
DECODE: PCM, MP3, FLAC, WMA, AAC
Streams: 4 (probably proprietary format)
Internet database: Gracenote

Yes, you can connect it with a cat 5 cable to.
Network: ethernet/ Wi-Fi
80 / 160 GB HD
OS: Linux
Player software: Hermstedt
Streaming: UPnP AV(Twonky Vision)
Recording
Supported sampling rate for recording: 44.100 Hz
Playback and Multi-room streaming
Supported sampling rate for playback: 44.100 Hz
Analog out: RCA
Digital out: SPDIF
The single source where you can find everything about the Hifidelio: Hifidelio-User.de
Don't worry about the German, most of them are pretty good in English.
My personal experience: The Rough Guide to the Hifedelio

Part of the Reference line including electrostatic speakers, subwoofer and a 52-inch LCD TV
Formats
RAID operation for data security
Database: Gracenotes
Connectors

Media player: Media Monkey
Fan less power supply and fan less processor
2 TB of storage and a 60 GB Solid State Drive for the operating system.
Output Network / USB / SPDIF / HDMI , no onboard DAC.

Remote control and/or touch screen (not included).
Player software: JRiver.

Analog output: 1x RCA
Digittal output: none
Supported Audio Formats
A must read tread on AV Science
A user forum
Remember, also, that Olive backups, when they do work, are encoded in a proprietary format that only an Olive device can use. So, if your Olive hard disc crashes, you must apply to Olive for repair or your music will be lost.
AV Science Forum
This turned out to be untrue, it are tar files so WinZip can read them.
However, though you have your music back you still miss the title and album names.
Anyway, it remains an example of the problems users will encounter when buying these type of boxes.
See How to read the Olive backups.


| Audio | System | ||
| Bit Depth | 24-bit | Storage Options | 2x250GB, 2x500GB, 2x750GB (RAID 1) |
| Sampling Rate | 96kHz | Power On | < 30 Seconds |
| Frequency Response | 22Hz-22kHz,-0.4,-0.4dB | Power Off | < 10 Seconds |
| Dynamic Range | 104dB (A-weighted) (D/A) 100.4dB (A-weighted) (A/D) |
Power Consumption | < 40W (Max) |
| THD | < 0.002% | Supply Voltage | 120/230 VAC 60Hz/50Hz |
| Audio Formats | Wav FLAC (lossless) MP3 Ogg Vorbis |
Control | Wireless touch screen control Wired Ethernet (direct commands and web control) Serial Port Integration libraries |
The Antenaeum (£4,500) is technically identical but has storage up to 1.5 TB (Raid 1).
Musisc server with 7" touch screen remote.
TEAC CD drive.
● Built-in 1TB capacity 3.5-inch Seagate Enterprise hard drive for music data storage;
(Storing up to 2000 music CDs by using FLAC lossless format); connection with
other storage tools via USB interface.
● Proprietary operating system, fully remote-controllable.
● Supported audio formats: PCM, WAV, APE, FLAC, AIFF, WMA, M4A, MP3, AAC, Ogg
Vorbis and future formats via software upgrade.
● Supports internet radio.
● Supports 192 KHz/32 Bit master formats and playback music with excellent results.
● Asynchronous Sample Rate Converter: Analog-Devices AD1896 chip converts
44.1KHz/16Bit digital music up to 192 KHz/24Bit, thus improving performance.
● DAC: Balanced DAC circuitry, 2 Analog-Devices AD1955(192KHz/24Bit)chips
supporting SACD’s DSD decoding.
● Full Balanced output with proprietary full discrete OP amplifiers consisting of FET and
Bipolar devices. Very high slew rate with high drive capability.
● Aluminum, fan-less chassis design.
● Analog outputs: RCA, XLR
● Digital outputs: RCA, USB
● Digital inputs: USB, RJ45
● Network connection: RJ45
● WDH: 425×370×265(mm)
$ 5995- 7795


OS: Linux


The S.Series ($ 18,500) no longer exist, they went multimedia at a more affordable price tag.

USB output
tX-USB USB port for audio output
USB audio class 2.0 support
USB power on/off
Coaxial output
Output impedance : 75Ω
Minimum output voltage : 0.5 Vpp
Sampling rate : 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz
Bit-depth : 16bit~24bit, PCM
Optical output
Maximum data rate : 12.8Mbps(NRZ code)
Output power range: -21dBm ~ -15dBm
Peak emission wavelength : 650nm
Sampling Rate : 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz
Bit-depth : 16bit~24bit, PCM
AES/EBU output
Output impedance : 110Ω
Minimum output voltage : 2 Vpp
Sampling Rate : 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz
Bit-depth : 16bit~24bit, PCM
Analog output
32bit/192KHz DAC chip
Balanced output voltage : 1.9Vrms
Unbalanced output voltage : 0.85 Vrms
THD+N : 0.002% > @ 1KHz
Output band width : -3dB@100KHz

A nice optical illusion. If you stare hard at this picture for 5 minutes you see a fat control at the right.
Sooloos has become part of Meridian. This deprived us of the girl, not of the price tag.

The Memory Player + DAC US$9,890.00
The Memory Player 64 Select - US$24,850.00
192 khz Analog Output
192 khz Digital Output
192 GB Click-and-Play SSD Library
2 TB Archival Library (for music backup)
The Memory Player System Bundle (Copier, Player, High Resolution Audio Copier, Opera Browser)
Direct to DAC
CD Burner
High Resolution Digital Recorder
Upsampler
Teflon Capacitors in power supplies and DAC outputs

CD/DVD player/ripper
Formats:
wav, mp3, flac, cdda, nsv, m4a, aac, strm, pls, rm, mpa, wma, ogg, mp2, m3u, mod, amf, 669, dmf, dsm, far, gdm, imf, it, m15, med, okt, s3m, stm, sfx, ult, uni, xm, sid, ac3, dts, cue, aif, aiff, wpl, ape, mac, mpc, mp+, mpp, shn, zip, rar, wv, nsf, spc, gym, adplug, adx, dsp, adp, ymf, ast, afc, hps, xsp
HD: 120GB SDD
OS: Linux
Protocol: UPnP
Networking: 1GB LAN Ethernet/WLAN-WiFi interface
Graphical user interface using touch-WEB portal
Bit rate and frequency display
Automatic updates via the Internet
Output: RCAs/XLR and HDMI/DVI
