Vivid Audio Introduces Giya Cu Loudspeakers

KEF Debuts New Finishes for Blade One Meta and Blade Two Meta

Sennheiser Drops HDB 630 Wireless Headphones

Sponsored: Radiant Acoustics Clarity 6.2 | Technology Introduction

PSB BP7 Subwoofer Unveiled

Apple AirPods Pro 3: First Impressions

LATEST ADDITIONS

Floor Loudspeaker Reviews

KEF Reference Series 103/4 loudspeaker

Thomas J. Norton Jun 18, 2015

By now most readers will be familiar with the relatively new tuned-cavity method of low-frequency loading. Such designs have popped up all over the place of late, especially in those little satellite/woofer systems, but KEF can rightly lay claim to generating the design's theoretical basis, as JA described in his review of the KEF R107/2 loudspeaker in Vol.14 No.5 (May 1991). Essentially, the technique consists of loading the rear of a woofer in a conventional fashionusually a sealed boxbut also loading the front of the driver into another enclosure, ducted to the outside. Basically, the design acts as a bandpass filter with its response centered on the port-tuning frequency. The rolloff is smooth and rapid on either side of this frequency, providing a natural low-pass characteristic but thereby virtually mandating a three-way system. If properly designed, this configuration offers a number of theoretical advantages. The radiating element is actually the air in the port, which is low in mass. Low distortion is possible, as is relatively high sensitivity.

Phono Accessory Reviews

LAST Record-Preservation Treatment

Larry Archibald Jun 18, 2015

LAST (Liquid Archival Sound Treatment) is a record treatment developed by one Dr. Catalano, which promises to retard dramatically the wear of vinyl discs. I don't feel that the advent of true digital discs will diminish the importance of LAST; on the contrary, as this century comes to a close many stereo records will be in their 30s and 40s and in need of as much preservation as possible, if the sounds and performances we treasure are to be preserved.

Katz's Corner InnerFidelity

Katz's Corner: The Great Headphone Shootout. Part 5: The Revisions

Tyll Hertsens Jun 17, 2015

This story originally appeared at InnerFidelity.com

I've seen some reports that the Stax 007 MkII (the "Omegas") sound a bit bassy and dull, but I don't have that reaction with the KGSS amp and a superior DAC. My precious Stax is clearly missing something in the bass department and I wanted to see if I could transfuse the slam of the Audeze into the Stax and have the best of both worlds.

As We See It J. Gordon Holt

A Plague Upon Our House

J. Gordon Holt Jun 16, 2015

The summer of 1975 will be remembered by us, with no fondness whatsoever, as The Time the Roof Fell In. Or the Murphy Months, or the Period of the Plague Upon Our House.

Ye Editor can recall from the days of WWII hearing and reading about the depredations of some mischievous sprites called Gremlins, who would cause aircraft hatchcovers to jam and control cables to get hung up at the worst possible moment, but I don't think I ever really did believe in Gremlins. I think I sensed somehow that the mishaps attributed to their malevolent machinations were too capricious to be the work of thinking, calculating little spirits. But I was not clever enough to put my finger on what was going on. That had to wait for a gentleman named something-or-other Murphy, who was (to my knowledge) the first person to put a tag on it, and to formulate a basic law about it. The tag was "the perversity of inanimate objects," and the law was "If anything can possibly go wrong, it will."

Recording of the Month

Recording of June 1982: Encores à la Française

Margaret Graham Jun 16, 2015

Michael Murray: Encores à la Française Works by Couperin, Dupré, Gigout, Franck, Widor, J.S. Bach, Vierne, Lemmens
Organ at Symphony Hall, Boston
Telarc Digital DG10069 (LP), 80104 (CD, released in 1990). Robert Woods, prod., Elaine Martone, assistant prod., Jack Renner, eng. TT: 65:46 (CD).

This is another winner. Michael Murray's superior performances are or should be well known to all by this time. This recording of Encores in the French style covers a wide gamut of registration and mood, ranging from the large and full-blown sonorities of Franck's Pièce Héroique, the Toccata from Widor's Organ Symphony 5, and Vierne's Final from the Symphony 1 in d to the light and nimble Scherzo of Eugene Gigout and the technically demanding Musette by Marcel Dupré.

News

The July 2015 Issue is on Newsstands Now

Stereophile Staff Jun 15, 2015

Bel Canto's extraordinary Black amplification system is featured on the cover. Combining state-of-the-art class-D monoblocks with an all-digital preamplifier, the Black sounds and measures as good as it can get. At a price, of coursebut at the other end of the price spectrum, we review Creek's Evolution 100A integrated amplifier, as complete in its way as the Black is in its. These are not your father's amplifiers.

Robert Baird

Blood and Freedom

Robert Baird Jun 12, 2015

Fred Kaplan

Ornette Coleman (1930–2015)

Fred Kaplan Jun 12, 2015

Ornette Coleman, the great alto saxophonist and composer, died yesterday at the age of 85. His great jazz quartet of the late 1950s and early '60swith Don Cherry on pocket trumpet, Charlie Haden on bass, and Billy Higgins (sometimes alternating with Ed Blackwell) on drumsrevolutionized jazz, shifting it away from chord changes to structures built more around melody, rhythm, and harmonic suggestions not confined by set chord changes. And while some of his followers may have descended into noisy chaos, Ornette himself rarely went that route and, in fact, in the '90s, stepped up to a new level of lyricism, culminating with his 2006 album Sound Grammar, which won that year's Pulitzer Prize for music.

Digital Processor Reviews Headphone Reviews

Aurender Flow D/A headphone amplifier

John Atkinson Jun 11, 2015

Aurender was a name new to me when I encountered the company at the 2015 Consumer Electronics Show, where they displayed a range of music servers designed in California and manufactured in South Korea. But what caught my attention in Aurender's suite was their Flow portable D/A headphone amplifier ($1295). This handsome, battery-powered device, housed in a machined aluminum case about twice the size of a pack of playing cards, offers optical S/PDIF and USB 2.0/3.0 input ports and a single ¼" stereo headphone jack. Two features distinguish the Flow from the pack: Its USB input can be used with iOS (iPhone/iPad) and Android smartphone sources, and it can accept an mSATA drive (not included in price) of up to 1TB capacity for internal storage of audio files. Visually, the Flow's distinguishing feature is its round LCD display, which stands proud of the faceplate; the bezel encircling the display acts as a velocity-sensitive volume control operating in 0.5dB steps.

J. Gordon Holt Solid State Preamp Reviews

Quad 34 preamplifier

J. Gordon Holt Jun 11, 2015

The Model 34 preamplifier is the component from English manufacturer Quad that will disenchant perfectionists, partly because of its obvious pandering to connoisseurs of old and sometimes lousy-sounding records, and partly because of its sound.

This solid-state design is supplied with a built-in moving-magnet cartridge preamplifier, and a moving-coil preamp is included with it for (easy) installation by the user if desired. (Remove two screws, pull out the old module, plug in the new one and replace the screws. The job takes about 3 minutes.) The MC preamp supplied is for 20 microvolt-output cartridgescontrary to the instruction booklet's statement that the supplied one is the 100µV version. Modules having a rated input level of 100 or 400µV are available as extra-cost options.