It has been 20 years since I first became aware of the British company Data Conversion Systems, which manufactures audio products under the dCS brand. Rather than use off-the-shelf conversion chips, the groundbreaking dCS Elgar D/A converter, which I reviewed in our July 1997 issue, featured a then-unique D/A design that they called a Ring DAC. This featured a five-bit, unitary-weighted, discrete DAC running at 64 times the incoming data's sample rate2.822MHz for 44.1kHz-based data, 3.07MHz for 48kHz-sampled data and its multipleswith upsampling and digital filtering and processing implemented in Field Programmable Gate Arrays (FPGAs). Oversampling to a very high sample rate allows the word length to be reduced without losing resolution, and use of a low-bit multi-bit DAC makes for very high accuracy in the analog voltage levels that describe the signal. (If this seems like voodoo, for a given signal bandwidth, bit depth and sample rate are related. To oversimplify, double the rate, and you can reduce the bit depth by one bit while preserving the overall resolution.)
I'm a progressive who enjoys the company of his conservative friends, a Catholic who's thankful for his atheist friends, and a carnivore who cherishes his vegetarian friends. I'm also a vintage-audio enthusiast who loves his audiophile friends who aren't so inclinedso I was doubly happy to see, in the September 2016 edition of Michael Fremer's "Analog Corner," a hearty endorsement of Ortofon's latest SPU: a 58-year-old phono-cartridge design that, like the coelacanth, continues to thrive despite expectations.
Mikey is a longtime friend who harbors no love for vintage phonographyyet after playing his first record with the new SPU #1E ($659), he wrote: "I immediately, and much to my surprise, got what the SPU cult is all about."
First Apple W1 Wireless Chip Headphone: The Beats Solo3
Nov 16, 2016
This story originally appeared at InnerFidelity.com
The Solo3 is the first headphones to have the Apple W1 wireless chip. (Followed shortly thereafter by the Beats Powerbeats3 and the soon to come BeatsX and Apple AirPods.) In this review I'll take a close look at the features and functions of this W1 based wireless headphone, and how it differs from typical contemporary Bluetooth headphones.
Take Two Grateful Deads and Call Me in the Morning
Nov 15, 2016
My friend was in dire straits. What had been rare occurrences of panic attacksone every year or sohad turned into a full-blown panic disorder that made it impossible for him to enjoy peace of mind..
If you've never suffered a panic attack, the idea of oneof being, in the absence of any real threat, suddenly overwhelmed by fearcan seem inconceivably strange. Try to imagine fear flooding your mind with such fierce momentum that you struggle to catch your breath, so convincing is the sensation that everything is spinning horribly out of control. Once that happens and the fear has taken over, it doesn't matter if the threat is real or not.
John McEuen: Made in Brooklyn
Chesky JD388 (CD). 2016. John McEuen, David Chesky, prods.; Norman Chesky, exec. prod.; Nicholas Prout, Mor Mezrich, Max Steen, engs. DDD? TT: 65:03
Performance ****
Sonics ****½
The invite from David Chesky was simple enough: "Hey Robert, John McEuen, David Bromberg and a lot of other people are going to make a record in this abandoned church that a friend of mine owns in Brooklyn, you wanna come by?" Knowing the resourcefulness, not to mention good ears, of David and Norman Chesky, owners of Chesky Records, I soon arrived in Greenpoint, Brooklyn, to find Stereophile contributing editor Herb Reichert munching on cookies and listening through headphones to what was going into the computer. Ahh, that freelancer lifestyle.