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Description: Solid-state integrated amplifier with D/A converter, Ethernet interface, and phono preamplifier. Line-level analog inputs: 3. S/PDIF (coax) digital inputs: 3. Optical (TosLink) digital inputs: 3. Digital outputs: 1 S/PDIF, 1 optical. Digital file formats supported via Ethernet connection: FLAC, AIFF, WAV, ALAC, AAC, MP3. Sampling rates supported: various, up to 192kHz. Word lengths accepted: 16 and 24 bits. Control protocol: uPnP V1.0. Phono input voltage: 50mV RMS, 70mV peak. Phono gain: 40dB. Phono input impedance: 47k ohms. Preamp signal/noise:…
Analog Sources: Garrard 301, Thorens TD 124 & TD 124 Mk.II turntables; EMT 997, Thomas Schick tonearms; Shindo SPU, EMT OFD 25 & OFD 65, Ortofon 90th Anniversary SPU & Classic A SPU cartridges.
Digital Sources: Ayre Acoustics QB-9, Wavelength Cosecant, HRT Music Streamer II & Music Streamer II+, Furutech GT40, Peachtree Audio iDecco (digital input to line output only) USB D/A converters; Stello U2 USB transceiver; Apple iMac G5 computer running Apple iTunes; Apple iPod Touch; Sony SCD-777ES SACD/CD player; QNAP TS-209II network-attached…
To perform the measurements on the Linn Majik DS-I, I mostly used Stereophile's loan sample of the top-of-the-line Audio Precision SYS2722 system (see the January 2008 "As We See It" and www.ap.com); for some tests, I also used my vintage Audio Precision System One Dual Domain and the Miller Audio Research Jitter Analyzer. Before I did any testing of the Majik DS-I, I ran it at one-third power into 8 ohms for an hour, which imposes the maximum heat stress on an amplifier with a class-AB output stage. At the end of that time, the chassis was only warm.
The…
Editor: When Stereophile published the first-ever review of the Klimax DS, in March 2008, it was heralded as "the stuff that dreams are made of"; the only real criticism leveled was that the user interface was "stupid." At the time, we maintained that Linn's unique, open approach to the home network would prove fertile soil for software programmers to plant their own ideas and grow their own interface solutions on whatever platform they chose.
Today, Linn boasts the widest range of networked control solutions on the market for any hi-fi product,…
Art Dudley reviewed the Linn Majik DS-I in the March issue and found that, when fed audio data over an Ethernet network, this D/A amplifier "presented a more open, nuanced, explicit, involving, and altogether natural musical experience than any USB-based digital source I've heard."
Strong words! But when I measured the DS-I before dropping it off at Art's place, I couldn't get it to recognize the music server on my home network, and therefore ended up doing all the digital-domain measurements using one of the Linn's…
Editor: The measurements from the Majik DS-I's S/PDIF-TosLink inputs [offered in the Follow-Up of the DS-I] are at the limit of the test equipment (footnote 1). It is consequently not possible for the same test equipment to demonstrate the superior jitter performance of the Ethernet configuration.
We are able to measure the audio master clock (MCLK) inside the Majik DS-I, and what we find is that the MCLK recovered from the S/PDIF receiver (fig.1) has about eight times the jitter of the MCLK that is used for Ethernet audio (fig.2).
Fig.1…
"I am here to fix ze problem viz yer pheaun."
After setting up the ia21 and letting it cook for a day or two, I sat down and gave it my first real listen. Something was not right. The sound was grainy and rough, the soundstage was not happening, and the frequency response seemed very lumpy. I…