Audacious Audio

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Jason Victor Serinus  |  Jan 30, 2025  | 
Almost 14 years have passed since a review of a Soulution product appeared in the pages of Stereophile. Given the Swiss company's steady ascent in the high-end pantheon, it is high time that we again reached into the German-speaking region of Switzerland north of the Swiss Alps to evaluate another of the reference products from a company equally renowned for its sonic achievements and refined and elegant design aesthetic.

Enter the full-function Soulution 727 preamplifier ($74,975), whose optional MC/MM phono section ($11,975) will be evaluated in a future issue. Because Soulution claims that the 727 "sets benchmarks in terms of noise, phase errors, common mode rejection and distortion," one would hope that there's far more than 62lb of classy casework and an easy-to-handle lightweight remote to account for its price.

Martin Colloms  |  Jan 24, 2025  | 
Since the original WATT/Puppy concept kicked off in the late 1980s, there has been a 40-year evolution leading to the latest version reviewed here. The loudspeaker's price in 2025 is around $40,000/pair compared to the original's $8000. While inflation alone would have lifted the price to $25,000/pair, the current price takes into account the many technological and design improvements. While remaining physically separable, the upper "WATT" (Wilson Audio Tiny Tot) component, namely the head unit of the latest design, can no longer be run as a small full-range loudspeaker in its own right. This is because the mid/treble crossover, which was originally in the WATT, is now relocated to the lower "Puppy" section. Certainly, that original two-box "full range," strongly sculpted WATT/Puppy stack radically broke the mold in deviating from those rather plain, coffin-shaped tower loudspeakers that were popular in this category.

The late David Wilson originally created the WATT as a shelf-mount studio monitor to help produce his recordings. At the time, this compact two-way promised near–state-of-the-art sound quality, especially transparency, indicative of very low self-noise. This quality also helped to maximize dynamic range and contrast. Later, David used the WATT as the foundation for a three-way floorstanding design by matching it to a low-frequency system (the Puppy), which also stood in as a physical platform for the WATT. This idea became reality in the successful W/P line of bass augmented systems.

Rogier van Bakel  |  Jan 23, 2025  | 
The dogma of separates has long reigned supreme among audiophiles: If you're serious about sound quality, you're supposed to need a dedicated preamp and power amp. The logic goes that separates reduce interference and offer maximum control over your sound. But there's an argument to be made that integrated amplifiers are more practical ... and potentially better-sounding.

The beauty of an integrated amp lies in its synergy. Audio engineers know exactly how the pre and power sections will interact; the two are literally designed to work together. On paper at least, that means optimized impedance matching, and signal integrity that can rival and perhaps surpass separates. How do you know whether a standalone preamp is a great match for a power amp? For most of us, it's through trial and error. It isn't unusual for restless stereo aficionados to own multiple combos over the years, in search of the ideal one. That gets costly.

Then there's the fact that an integrated amp helps declutter a room, appealing to minimalists and people whose living spaces are less than cavernous. Another plus: no need to shell out for audiophile-grade interconnects.

Jason Victor Serinus  |  Jan 03, 2025  | 
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.

Sasha Matson  |  Dec 27, 2024  | 
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.

Rogier van Bakel  |  Dec 18, 2024  | 
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.

Jason Victor Serinus  |  Dec 04, 2024  |  First Published: Nov 30, 2024  | 
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.

Jim Austin  |  Oct 26, 2024  | 
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.

Brian Damkroger  |  Oct 18, 2024  | 
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.

Jason Victor Serinus  |  Oct 17, 2024  | 
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.

Jason Victor Serinus  |  Oct 04, 2024  | 
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?
John Atkinson  |  Sep 20, 2024  | 
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."

Michael Fremer  |  Sep 02, 2024  |  First Published: Aug 01, 2015  | 
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.

Rogier van Bakel  |  Aug 30, 2024  | 
It's funny how we discover some music in unexpected, twisting ways. A friend recently sent me the real estate listing for a beautiful home in Deer Isle, Maine, about an hour from where I live. I gawked at the pictures and calculated I'd need to work for Stereophile for another 127 years before I'd have enough dough to buy it. Then I noticed something unusual on one of the walls of the place: lots of gold records. Google helped me figure out that the house had belonged to the late singer-songwriter Dan Fogelberg. I knew the name but was unfamiliar with his music. Minutes later, I was playing the studio version of "Nether Lands," seemingly named after my country of birth. A beautifully orchestrated piece with restrained woodwinds and soaring strings, it reminded me of the best of Van Dyke Parks and of some post–Pet Sounds Brian Wilson songs. I played it straight through three times.

Part of the reason I was so smitten with the recording lay in the engaging, naturalistic presentation it received from the handmade-in-Switzerland Piega Gen2 811 floorstanders ($30,000/pair) that had just made their way to my listening room.

Jim Austin  |  Aug 22, 2024  | 
One of the pleasures of reviewing—and also using—products from Pass Laboratories is an encounter with Nelson Pass's writing, which can usually be found in the owner's manual and is always competent, insightful, and sometimes funny. How often do you get real pleasure and insight from reading an owner's manual?

Pass Labs has a lot of owner's manuals online. Reading through one, I encountered the following passage; you'll find the same or similar language in other manuals and on the Pass Labs website. I present it not only because I admire it and agree with the philosophy it expresses but also because it captures the spirit of the product under review—the XP-27 phono preamplifier ($12,075 in silver)—at least as I've experienced it during an extended review period. Here it is, quoted at length with some slight adjustments to make it consistent with Stereophile's editorial style...

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