Audacious Audio

Sort By:  Post Date TitlePublish Date

Moon 891 streaming preamplifier

No fewer than eight boxes, powered by six after-market power cables, comprise my current reference front-end. As much as separate boxes can afford superior isolation and provide far more room for visionary engineers to work their magic, the advantages of a single box, which requires a single power cable and far fewer after-market interconnects, are obvious.

Enter Simaudio's Moon 891 network player/preamplifier ($25,000; footnote 2). Also called a "streaming preamplifier,"it includes a DAC that converts PCM and MQA files up to 32/384 (with 24-bit files upconverted to 32-bit) and DSD files up to 256. It also includes what Simaudio company co-owner Costa Koulisakis describes as "a fully configurable" MC/MM phono stage. Both theoretically and practically, it's an ideal solution for someone with space and/or budget constraints.

Gryphon Audio Designs Diablo 333 integrated amplifier

What's in a name? Denmark-based Gryphon Audio Designs laid down a marker when company founder Flemming Rasmussen chose that name in 1985. Browsing through the current Stereophile Recommended Components list, I only found one other manufacturer that utilizes an animal moniker. The imagery summoned by the use of the mythical treasure-guarding Gryphon seems appropriate; a hybrid creature combining features of the eagle and the lion, creatures of strength and speed—this choice underlines some of the aesthetics and performance Gryphon Audio has become known for. The handsome hardcover user's manual for the Diablo 333 simply states in gold "The Gryphon," along with a side-on profile of that winged lion-tailed creature, as a logo.

The Gryphon Diablo 333, a solid state, stereo integrated amplifier ($24,900 without optional DAC and phono stage modules), replaces the Gryphon Diablo 300, which was in production since 2016.

Estelon X Diamond Mk II loudspeaker

Taste is a funny thing. Love cilantro? Millions swear it tastes like soap. Similarly, design cognoscenti will gush over a minimalist Scandinavian sofa that others dismiss as just a pricey plank with delusions of grandeur.

There's no accounting for taste, or so the truism goes. But arguing over preferences is exactly what many audiophiles do. Similarly, Stereophile reviewers are all about parsing and evaluating sound, and how a product looks isn't usually a big part of the equation. But I'll buck that convention and say that the radically shaped Estelon X Diamond Mk IIs aren't just the most visually sublime speakers I've laid eyes on; they ought to be part of the Cooper Hewitt Museum's permanent collection. Or MOMA's.

Moon 861 stereo/mono power amplifier

It is unusual to begin a review with a detailed discussion of setup. But setup protocol for the Moon 861 power amplifier ($22,000 each), the top-level amplifier in the North Collection from Moon, which I reviewed bridged in mono, proved crucial to its sound.

The setup saga began when Moon co-owner Costa Koulisakis traveled to Port Townsend from Quebec to help remove two 861 amplifiers from their sturdy flight cases and set them up.

CH Precision L1 line preamplifier

As editor, I love it when Stereophile reviews new equipment. "New" attracts readers. But there are good reasons to review stuff that's not totally new (though usually it is still shiny). The best reason is experience, first-hand: You hear a component at a show or in your own system. You're impressed and decide it deserves a closer look.

That's why I'm reviewing the CH Precision L1 line preamplifier ($34,500 in silver), which has been on the market for several years.

Avantgarde Duo SD iTRON G3 active loudspeaker

Active speakers make sense. The amplifiers, crossovers, and drivers are designed as a unit, so the design isn't compromised by the need to interface with components with unknown electrical or acoustical characteristics (except for the room, and that can't be helped). Concurrent design and testing of the various pieces can result in an integrated, through-designed system. Plus, the elegant simplicity that active speakers bring to a system just appeals to me.

Like many audiophiles, I've found myself intrigued by the variety of approaches that are taken to achieve the same goals: point source, line source, panels, horns. Whenever I've heard horns paired with a flea-powered amp, the dynamics have always impressed. I've consistently heard a jump factor that makes music feel remarkably alive. The combination of these two traits, though—horns plus active—is quite rare.

Ideon Absolute Stream Meta 2024 server/streamer

Is audio reviewing a futile pursuit? As much as we reviewers may strive, through subjective observation and objective measurement, to accurately describe how a component looks, sounds, and performs, we frequently find words and numbers inadequate to communicate the mysteries that abound in the transcendent realm of music. How can we fully share what we feel when a component allows us to experience, sometimes afresh, often in a new way, sounds that elicit joy, sorrow, terror, or more subtle emotions? How do we encapsulate in words and measurements the sonic equivalent of the wide-eyed wonder that shines through a baby's eyes as she discovers something new?

Such emotions—hence such questions—can arise when we move from one music server to another, or even between different software running on the same server. They are particularly intense in the case of this review of the Ideon Absolute Stream meta edition (2024) ($24,000) and its optional add-on, the Ideon Alpha Wave LAN Optimizer ($6900), considering that the review lacks measurements.

Burmester 218 power amplifier

As much as I tinkered with a little crystal radio as a child and started reading stereo magazines in high school, it wasn't until my early 30s that I half-stumbled into the higher end of the hi-fi sphere. As I progressed from used Advents to used Spicas and began to experiment with speaker cables, more and more names of high-end brands entered my consciousness. Burmester (founded in 1977), and some of the other higher-priced components from overseas whose looks seemed commensurate with their prices, held an outsized fascination for me. What about them, other than their visual appearance, accounted for their vaunted reputations and cost?

Bowers & Wilkins 805 D4 Signature loudspeaker

The "Bowers" in the name of British manufacturer Bowers & Wilkins (B&W) refers to founder John Bowers, whom I got to know fairly well before he passed in 1987. In recent years, I've reviewed two Bowers & Wilkins loudspeakers: the 705 Signature two-way standmount in the December 2020 issue and the Diamond Series 804 D4 three-way floorstander in the January 2022 issue. More recently, Tom Fine reviewed the three-way, floor-standing Signature Series 801 D4 in March 2024.

Currently there are two models in the Signature Series, which was launched in 2023 to pay tribute to the company's groundbreaking John Bowers Silver Signature from the early 1990s: the 801 D4 and the subject of this review, the two-way 805 D4 standmount, which B&W describes as its "highest performance standmount ever."

Analog Corner #240: Sperling-Audio L-1 turntable and TA-1 tonearm

Photo: Echopark

With its swept-wing shape and platter-forward design, Sperling-Audio's L-1 turntable ($35,950, without tonearm) stands out in a crowd. This high-mass design from Germany is the result of a collaboration between Ansgar Sperling and Michael Bönninghoff, two fiftysomething engineers who began working together in recording studio construction.

Both also bring to the L-1's design and construction years of experience in signal processing. For years, Bönninghoff was the chief developer at Brauner microphones, and today is the technical director of the German pro-audio company S.E.A. Sperling worked in radio and signal processing, and has a strong interest in tubed electronics.

Advertisement
Advertisement
Advertisement