DAC Reviews

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Steven Plaskin  |  Sep 10, 2013
There has been a movement in the design of high end DACs to reduce jitter to extremely low levels due to the emergence of extremely accurate oscillator-clocks. Recently, I reviewed the MSB Technology Analog DAC with its Femto clock and claims of extremely low jitter. Calyx Audio, a division of the Korean manufacturer Digital and Analog, have utilized an extremely accurate clock to decrease jitter from the standard picoseconds to femtoseconds ; in this case 500 femtoseconds. One femtosecond is one quadrillionth (0.000 000 000 000 001) of a second or 10−15. Calyx is obviously proud of their clock technology and named their flagship DAC Femto. Digital and Analog not only builds a line of DACs, but also Class D amplifiers and a powered speaker. They have specialized in building class D ICs and Full Digital ICs OEM since 1999. In 2008, Calyx Audio was formed to produce high end audio products.
Michael Lavorgna  |  Sep 03, 2013
HD = DXD/DSD
Way back when I reviewed the Resonessence Labs Concero (see review), I wondered/wished, "I wonder if they could easily add DSD capabilities to the Concero?" Depending on your definition of "easy", the answer is a resounding yes. It did take a new DAC chip but ESS came to the rescue and the little Concero now has two siblings; the HD with its DXD/DSD capabilities and the HP which adds a headphone amp to the HD. Like the original Concero, the HD in addition to functioning as a Coax S/PDIF and USB DXD/DSD DAC, it can also operate as a USB to S/PDIF converter handling up to 64x DSD since 128x DSD is beyond the S/PDIF specifications according to Resonessence Labs.
Michael Lavorgna  |  Aug 07, 2013
NAD Digital Classic Series
NAD's new Digital Classic series of components includes the D 3020 Digital DAC/Amplifier ($499), the D 7050 Direct Digital Network Receiver ($999), and the D 1050 DAC that's here for closer scrutiny. The Digital Classics share the same form factor, which was designed by David Farrage, are about the size of a good book, and can sit horizontally or vertically to suit environment and taste. I like the simple and sleek black matte sides with the shiny strip running down the center as well as the touch-sensitive controls coupled with that big, chunky volume knob. Overall a classy look and feel, imo, for such a modestly priced piece of kit.
Michael Lavorgna  |  Jul 24, 2013
Arcam's "SuperDAC"
The Arcam D33 DAC is part of Arcam's FMJ Series (Faithful Musical Joy) of components which includes disk players, a tuner, an integrated amp, a multi-channel amp, and a home theater receiver. The D33, dubbed the "SuperDAC" on the Arcam website, which tickles my fancy, is a fairly straight forward 24/192-capable DAC and its understated and stealth-like appearance, "to seamlessly blend with any style of décor", does not really hint at its SuperDAC-ness which we can assume refers to what goes on inside and eventually comes out.
Steven Plaskin  |  Jul 16, 2013
The Analog Power Base is a $2,995 upgrade power supply for the MSB Technology Analog DAC. My recent review of The Analog DAC (see review) was going to include the Analog Power Base, but MSB Technologies’ recent move to a new factory delayed this evaluation. The Analog DAC comes with an outboard Desktop Power Supply that is housed in an aluminum case with two transformers. This power supply is linear with separate supplies for digital processing and the analog circuits of The Analog DAC.
Michael Lavorgna  |  Jul 10, 2013
"It’s the undigital digital."
That's a quote from Ed Meitner from an interview in Positive Feedback Magazine (see interview) regarding DSD. And I enjoy that, the undigital digital. For those of you who don't know Ed Meitner, he is an electrical engineer by education and has been involved in audio design for more than 30 years. Ed got his start with Olive Electrodynamics Company where he was involved in designing and building the first VCA controlled recording console in 1972. Next was a stint with Amber the test equipment manufacturer followed by his position as head designer at Museatex (which became A/D/S) [I owned the Museatex STR-55 stereo amp back in the day]. During this time he also wrote about and built the LIM detector, basically the first jitter detector. After ADS, Ed was one of the engineers behind the development of DSD/SACD for Sony. He is currently the head designer for EMM Labs and Meitner Audio which can be viewed as the more affordable arm of EMM Labs. Meitner Audio has two products—the MA-1 DAC and the MA-2 Integrated Playback System that we'll be looking at and listening to here.
Michael Lavorgna  |  Jun 17, 2013
Analog
Since Steve Plaskin has already done a wonderful job with all of the heavy lifting in his review of the MSB Technology Analog DAC (see review), I will point you to it as essential reading. This follow up consists completely of my listening impressions, subjective as they are, of the Analog DAC within the confines of my system and listening room (for the most part).
Michael Lavorgna  |  Jun 13, 2013
rSeries
UK-based Arcam's rSeries is comprised of "computer and streaming music products". There's the rPac DAC/Headphone amp under review, the drDock iPad/iPod/iPhone dock, the rDAC, rLink S/PDIF DAC, SonLink for the Sonos system, the rCube portable iPod speaker system, and two wireless dongles that work with the rCube and rDAC. The rDAC can be viewed as a portable DAC/Headphone amp but it also works wonders as a desktop device, which is how I used it, feeding your active desktop speakers while serving double time as a headphone amp. The nice thing about the design of the rPac is it includes a volume control for the headphone amp above the associated headphone jack which is on the opposite side of its black aluminum cigarette pack-sized body from the USB input and RCA outputs making it ergonomically friendly for servicing both functions.
Michael Lavorgna  |  Jun 04, 2013
Luxe
Luxman is an old and storied Japanese hi-fi brand having been founded in 1925. I'll admit to lusting after a number of Luxman products over the years, mainly their tube-based amplifiers, but regardless of the component, Luxman knows how to impart beautiful build quality. There's obvious and tactilely apparent care taken with each objects industrial design. And while I appreciate that aspect of the Luxman line, without matching sonic performance you may as well buy a music box. Luckily for us, the DA-06 delivers on all counts.
Michael Lavorgna  |  May 27, 2013
High Definition 1.0
The High Resolution Technologies (HRT) Music Streamer HD is a straight forward device that takes your computer's USB output and converts it into an analog signal that your Hi-Fi can understand. The "HD" part of the name refers to the Music Streamer's ability to handle up to high definition 24-bit/192kHz data—with Apple computers. Windows users can play back up to 24/96 via USB 1.0. According to Scot Markwell of Elite AV Distribution, my contact for this review, "HRT has a very strong philosophy that their products should be 100% Plug-and-Play, without the need for 3rd-party drivers that are not as of yet robust and reliable enough to warrant having our customer base attempt to work with them." I'd say that pretty much makes the Music Streamer HD a Mac-only device.
Steven Plaskin  |  Apr 25, 2013
General Description of The Analog DAC
The Analog DAC is MSB Technology’s newest DAC model that was designed to offer audiophiles a DAC that is analog-like in sound quality, but without the limitations of dynamics and distortion. As it just so happens, The Analog DAC is the least expensive of the DACs offered by MSB Technology, but offers a number of features found in their more expensive models.
Michael Lavorgna  |  Apr 02, 2013
Wow Factor
I first saw and heard the AURALiC Vega Digital Audio Processor at the 2013 CES and I remember thinking—I need to hear this one at home. I can't tell you exactly why this was the case especially seeing as listening to music is a difficult thing to focus on at hi-fi shows and determining the performance of a given component within an unfamiliar system is like judging a blind date by an online profile. So let's call my interest in the AURALiC Vega a hunch. And let me just say man oh man did that hunch pay off.
Michael Lavorgna  |  Mar 26, 2013
NOS
The Hex DAC is, according to Metrum Acoustics, a non-oversampling (NOS) filterless DAC in the strictest sense. This means that inside, including inside its mysterious* DAC chips, the PCM signal remains a PCM signal and it passes through the D/A process un-oversampled and un-filtered, as it were. Many of today's DACs, even some calling themselves NOS DACs, employ delta-sigma DAC chips that, among other things, oversample, interpolate, convert the PCM signal to a PDM signal (pulse-density modulation), and filter our precious musical data. Filterless NOS DACs skip these steps and some feel that the resulting analog signal sounds more analog-like as a result.
Michael Lavorgna  |  Mar 19, 2013
Z Ultra-Compact Component
The Zdac hails from Parasound's Z-line of "ultra-compact components" that includes the Zamp V.3, Zphono, Zphono-USB, Zcd, Ztuner, Zpre2, Zbreeze cooling fan, and the Zselect five-pair speaker selector. The Z-line comes in silver or rack-mountable black and all of the Z components share the same chassis so one could have a complete matching Z-system (sans speakers). For some, matching components are a plus while for others, mainly for certain kinds of audiophiles, matching components take all of the fun out system mixing and matching. Thankfully you can have the Zdac either a la carte or prix fixe.
Michael Lavorgna  |  Mar 09, 2013
Value
One look at the Emotiva XDA-2 DAC/Digital Preamp/Headphone Amp and you may ask yourself—I wonder how much that costs? And when you learn that the answer is a dollar shy of $400, you may think "Wow" or you may think, "Wait, what does it do?". Price perception is similar to depth perception in that's its all about ones' point of view. While anyone that's been shopping for a DAC lately will more than likely be impressed by the XDA-2s package, what it does is play music and how well it does this one job will tell you most everything you need to know about its value.

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