Audacious Audio

I wrote several issues back that my first high-end headphones were Koss Pro4AAs, which I bought in 1972 following a positive review in the British magazine Hi-Fi News. Although that review didn't mention that the Pro4AAs were relatively fragile (footnote 1), I nonetheless loved their sound. They were the best headphones I'd heard—until, a couple years later, I was playing bass on some sessions for record producer Tony Cox. Tony had a pair of signal-energized electrostatic headphones, Koss ESP-6es, which were heavy and clunky—but they opened my ears to the sound quality that could be obtained from "cans." I didn't hear better until after I'd moved to Santa Fe, in 1986, and J. Gordon Holt loaned me his review samples of the Stax SR-Lambda Pros.

Among the biggest buzzes at the January 2013 Consumer Electronics Show, and at Munich's High End Show the following May, was the sound in the room of Siltech BV, a Dutch company best known for its high-end cables. Siltech was demonstrating an innovative new power amplifier, and using it to drive the company's glass-cabineted Arabesque loudspeakers ($90,000/pair). The sound was unmistakably lush yet also remarkably linear, notably dynamic, and seemingly free of electronic artifacts. It sounded like the sound of "nothing"—which was really something!—and so much of a something that it caught the attention of many reviewers. But while there's often controversy and disagreement about a given product's sound quality, this time the enthusiasm seemed unanimous.

Can a power-supply upgrade produce audible sonic benefits? If you've upgraded the power supply of a phono preamplifier, you probably don't need to be convinced that it does, and those usually cost only a small percentage of the price of the model they power. But to add Simaudio's Moon Evolution 820S power supply ($8000) to the Moon Evolution 650D DAC–CD transport ($9000), which I reviewed in the November 2011 issue, almost doubles the latter's cost—though the 820S can be used to simultaneously power two Moon Evolution components, like the 750D DAC ($14,000), 740P preamplifier ($9500), and 610LP ($7500) and 810LP phono preamplifier ($13,000).

In the September 2005 issue (Vol.28 No.9), I reviewed Simaudio's first reference-quality power amplifier: the 1000W, 220-lb Moon Rock monoblock ($37,000/pair). At the time, the Rock was a dramatic departure for Simaudio, then primarily known as a maker of midpriced gear that was good for the money. I found a lot to like about the Rock, concluding that while it wasn't quite up to the standard of the best superamps of the time, it was very good—and, for Simaudio, an admirable first shot at the state of the art.

Creating a new flagship model is never an easy task for an audio company. A good designer will have already incorporated all his or her best ideas into the prior flagship. For a follow-up, you typically get a scaled-up version of what came before, incorporating the kind of improvements a bigger budget will allow.

SME's history is well-documented. The company started out, in 1946, as an engineering company for hire. In 1959, after a few years supplying parts for the scale modeling and various other high-tech industries, company founder Alastair Robertson-Aikman wanted a better tonearm for his personal use. He leveraged the capabilities of his small engineering company to create what eventually became the legendary 3009 and 3012 tonearms. The reputation of the new arms spread quickly, and from the mid-1960s through the 1970s, SME dominated the high-end tonearm market. SME's corporate slogan was The Best Pick-Up Arm in the World, and few people at the time would have challenged that claim.

The Type A has served as Snell Acoustics' flagship loudspeaker since 1974. The Type A Reference System reviewed here is the sixth update of the late Peter">http://www.stereophile.com/floorloudspeakers/378snell/index4.html">Peter Snell's original three-way floorstanding design, and is the most radical departure from Snell's">http://www.stereophile.com/floorloudspeakers/378snell">Snell's original. Gone is the pair of "upright bricks of polished wood and stretched cloth" (footnote 1) that delighted decorators because they functioned best against a wall. Today's Type A Reference $18,999 price tag (footnote 2) purchases two tall midrange-tweeter towers, two huge subwoofers, two short but heavy enclosures housing the outboard passive crossover networks, and a small electronic crossover.

"How do you make an object common as a box iconic?" asked Bob Graffy, Snell's vice president/brand manager. He and Joseph D'Appolito, Snell's chief design engineer, were sitting in my listening room, discussing cabinet designs. Graffy noted that KEF had sought the same in their distinctive, silvery, cylindrical Muon loudspeaker ($150,000/pair). For the flagship model in their Illusion series, Snell commissioned Gerd Schmieta, former designer for Ideo, to integrate D'Appolito's wish list for an ideal enclosure: a narrow, rounded upper baffle for the midrange and tweeter, wider at the base for the woofers, holding a constant cross-sectional area while maximizing cabinet volume, and compliance with a 15° tip test.