Jon Iverson

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Jon Iverson  |  Mar 08, 2012  |  1 comments
The taxonomy of audio products used to be easy. An amp, a preamp, speakers, a disc player or two—done. Now that hard drives, streaming clouds, and computers have entered the scene, unless your world revolves around only an iPod or a disc player, you have choices—lots of choices.
Jon Iverson  |  Jan 14, 2011  |  0 comments
Hiding in the back room of their palatial suite in the Mirage, Musical Fidelity was running a demo of their M1CL:C Universal Music Controller which is now being finalized. MF says they are shooting for somewhere under $2,000 for the product which operates as a DAC and preamp and includes USB, SPDIF and analog inputs. I noted a USB input on the front and a beautiful color display as well.
Jon Iverson  |  Jan 16, 2013  |  3 comments
Musical Fidelity had a large multi-room suite atop the Mirage, with multiple systems set up and optimized. One system was set up around the new M1SDAC which retails for $1,499 and should be here by April.

Inputs include all the usual digital suspects including USB that can handle 24/192. Since the M1SDAC also functions as a preamp, it has analog inputs which are sampled at 24/96. Outputs included unbalanced analog and digital.

But what caught my ear was the Bluetooth capability that allows you to wirelessly connect your Bluetooth device if it has audio files on it. Once received wirelessly, the Bluetooth stream is upsampled to 24/192 by the M1SDAC. Tempo Marketing's John Quick asked me to pull out my iPhone to see if there was some music I'd like to hear. Sure enough I had an uncompressed CD rip of Roxy Music's first album and within seconds it was playing over the system, tracks being controlled from my seat. Maybe not CD quality, but it sounded pretty good with a bit of crunch on the top end.

Jon Iverson  |  Jan 13, 2010  |  2 comments
Also in the Musical Fidelity suite were the new M6 Series components which include the M6i integrated amp and the matching M6 CD-DAC. Priced at $2500, the M6 CD-DAC includes SPDIF, Toslink and USB inputs on the back for external digital sources which feed into the 24 bit/192kHz upsampling DAC.
Jon Iverson  |  Jan 16, 2013  |  0 comments
In the main system, the M6 DAC was holding court. Also Bluetooth capable, the M6 DAC runs USB, SPDIF and AES/EBU up to 24/192. All inputs are re-clocked and upsampled to 24/192 for processing and filtering. The filter has two user selectable settings and there are both balanced and unbalanced outputs. Retail price is $3,000 and the M6 DAC is available now.

This time John Quick decided we'd listen to an HD sample and cued up War's "The World is a Ghetto" from HDTracks.com to stunning effect.

Jon Iverson  |  Jan 14, 2011  |  2 comments
Musical Fidelity also displayed their V-Link which can take USB from your computer and convert it to S/PDIF for use with your non-USB DAC. Priced at $169, John Atkinson mentioned to me that "it measures really good" and found it did indeed operate in the better-sounding asynchronous mode.
Jon Iverson  |  Jan 09, 2013  |  0 comments
Mike Yee (shown here holding his DAC) has been working for the past several years on a unique approach to DAC design. He has invented a technique (for which he has applied for a patent) he calls MODR or Musically Optimized Digital Reconstruction.

Yee uses an FPGA (field programmable gate array) to intercept the digital signal as it comes into the DAC. The FPGA provides a proprietary "pre-emphasis" conditioning of the signal before the DAC chip to "remove the DAC's effect on quantization error." After the DAC chip, an analog stage provides de-emphasis prior to output.

There are SPDIF and Toslink 24/192 inputs as well as a 16/48 USB port. On the front are LEDs to indicate the sample rate. Introductory price is $1,000

Jon Iverson  |  Jan 02, 2017  |  3 comments
Stereophile tried something a little different for our CES coverage last year: we brought Graham Nash to the show. This year several new artist names were tossed about, and when Jake Shimabukuro came up we jumped at the chance to bring him to Las Vegas. Jake is a stellar musician, and has turned the ukulele into a respected instrument with his interpretations of classical and modern works, collaborating with a wide range of artists from Yo-Yo Ma to Alan Parsons. He is stunning to watch: If you've never seen or heard him play, check out the videos at the bottom of this story.
Jon Iverson  |  Oct 11, 2019  |  14 comments
Under the category of "abundance of musical riches," there are two fantastic series about music airing on PBS right now. You probably already know about one of them, but another, which many readers will like even better, is getting far less press.
Jon Iverson  |  Jan 15, 2014  |  0 comments
Jason mentions the new NAD Master Series below, but it's worth fleshing out the M12 DAC/Pre. Inside is basically the same DAC as the M51 which has been updated it a bit. The M12 also features NAD's MDC or Modular Design Construction chassis, meaning there are several card slots on the back for a variety of inputs including their new BluOS on a card to tie it in with the new Bluesound products from parent company Lenbrook Industries

The M12 (which NAD calls a Host component) will be available in May for $3,499.

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