Audacious Audio

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Audacious AudioSolid State Power Amp Reviews
darTZeel NHB-468 monoblock power amplifier
Michael Fremer  |  Oct 17, 2019  | 
What's the point of reviewing a pair of monoblock amplifiers that costs more than most people spend on two or even several cars— and far more than most audiophiles spend on an entire music system? That's a good question. Another is: Why should I write this review when, just seven years ago, I reviewed a pair of darTZeel monoblocks that look exactly like this new pair?

I realize that products such as the darTZeel NHB-468 ($170,000/pair) are for the very few, but the very few include far more people throughout the world than you may realize— people who can afford such costly audio products and who do buy them. I know, because in my travels I've met a lot of them, and they deserve to read reviews of products they're considering buying—things most of us can only dream of owning.

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Audacious AudioFloor Loudspeaker Reviews
Listening to the Wilson WAMM Master Chronosonic
Brian Damkroger  |  Jul 04, 2019  | 
Earlier this year, I had the opportunity to spend a couple of afternoons listening to a system built around the late David Wilson's magnum opus, the Wilson Audio WAMM Master Chronosonic loudspeaker ($685,000/pair), which Jason Victor Serinus reported on in December 2016. In addition to the joy of simply listening to music on such exotic speakers, the experience provided insight into just how well the Master Chronosonics would work in a relatively normal-sized listening room—in this case, one measuring 21.5 feet long by a little over 18 feet wide, with a ceiling height of a little over 9.5 feet: not small in an absolute sense, but a lot smaller than the sort of space usually associated with speakers this large.
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Audacious AudioSolid State Power Amp Reviews
CH Precision M1.1 power amplifier
Michael Fremer  |  Jun 25, 2019  | 
CH Precision's massive, versatile, technologically sophisticated, 165 lb M1.1 power amplifier ($54,000 configured for stereo) can easily crush your foot if you're not careful when installing it. But the more important consideration is this: Can this cool gray techno-square sing and dance without stepping on its own feet?
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Audacious AudioSolid State Power Amp Reviews
Verity Audio Monsalvat Amp-60 power amplifier
Jason Victor Serinus  |  Apr 25, 2019  | 
I first encountered Verity Audio's Monsalvat Amp-60 stereo power amplifier ($58,000) in October 2017, in one of the largest single-system rooms at the Rocky Mountain Audio Fest. After hearing the Amp-60 and Verity's Monsalvat Pre-2 preamplifier drive Verity's Lohengrin IIS loudspeakers ($133,000/pair), I enthused about the "most impressive range of colors and supreme sense of spaciousness" that contributed to the system's "absolutely beguiling" sound.
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Audacious AudioTube Power Amp Reviews
Cary Audio CAD-805RS monoblock power amplifier
Art Dudley  |  Dec 20, 2018  | 
There's no place for fashion in epidemiology, aeronautical engineering, or the mining and storage of uranium. Fortunately, domestic audio is less serious, its goals more scattered and ambiguous, than those and a thousand other pursuits.

And so, throughout the 20th century, any number of trends in domestic audio popped up their heads, some remembered as fads, others as legitimate approaches to playback. Among the latter are amplifiers whose output sections operate in single-ended mode, in which the entire signal waveform is amplified by a single device.

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Audacious AudioFloor Loudspeaker Reviews
Tidal Audio Akira loudspeaker
John Atkinson  |  Oct 18, 2018  | 
Doug White, of Philadelphia-area retailer The Voice That Is, has been a fixture at US audio shows the past few years, where he always gets great sound using loudspeakers from Tidal Audio. (There is no connection between the German audio manufacturer and the music-streaming service owned by Jay Z and Sprint.) In early 2017, Herb Reichert, Jana Dagdagan, and I visited White and spent a delightful afternoon listening to Tidal's then-new Akira loudspeakers. I promised myself to review the Akira, which costs a wallet-straining $215,000/pair, when my schedule opened up. As things turned out, it was more than a year before that opportunity presented itself.
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Audacious AudioSolid State Power Amp Reviews
Constellation Performance Centaur II 500 power amplifier
John Atkinson  |  Sep 25, 2018  | 
I am finding hard to grasp that it is almost 50 years since I first went to a hi-fi show. That show, held at London's Olympia exhibition center, was notable both for Yamaha's launch of a loudspeaker with a speaker diaphragm shaped like a human ear, and for being the first time I saw the drop-dead gorgeous Transcriptors Hydraulic Reference turntable, which was later featured in the film A Clockwork Orange. The most recent show I attended was AXPONA, held last April in the Chicago suburb of Schaumburg. There I saw no ear-shaped drive-units, but the final room I visited featured sound that the 1969 me could have only fantasized about.
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Audacious AudioFloor Loudspeaker Reviews
Sonus Faber Aida loudspeaker
Michael Fremer  |  Sep 18, 2018  | 
In 1959, in their musical revue At the Drop of a Hat, the British musical-comedy team of Flanders and Swann sang their "Song of Reproduction." It's not about sex. The song mocks audiophiles (you thought this was something recent?) for how we spend "all of that money to get the exact effect of an orchestra actually playing in their sitting room." Before launching into the song, Flanders quips, "Personally, I can't think of anything I should hate more than having an orchestra playing in my sitting room!"
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Audacious AudioCD Player/Transport Reviews
Kalista DreamPlay One CD player
Art Dudley  |  Aug 16, 2018  | 
Some of my reviewer colleagues would have you believe that negative reviews are the most difficult of all to write, and that positive reviews fairly write themselves. What nonsense!

As I write this, my copy deadline is three days away, yet I've succeeded at crafting little more than my heading (easy enough: it's just the product's name, followed by my name) and my Associated Equipment sidebar (also easy), leaving a great expanse of nothing in between. That's mostly because the Kalista DreamPlay One, a two-box CD player whose $43,000 price might once have kept me from even considering it as a real-world product, has stunned me into a sort of paralysis: I feel that anything I write will be inadequate to the task.

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Audacious AudioSolid State Power Amp Reviews
Moon by Simaudio 888 monoblock power amplifier
Michael Fremer  |  Jul 26, 2018  | 
Not everyone needs a power amplifier that can deliver 888W RMS into 8 ohms or 1776W into 4 ohms. You could say that no one needs one of these—or two, if you want to listen in stereo. Most household AC systems can't even provide enough current to deliver all that power. But Simaudio does build Moon 888 monoblocks, and people do buy them, whether or not they need an amp that weighs about 250 lb each and costs $118,888/pair.
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Audacious AudioSolid State Power Amp Reviews
Pass Laboratories XA200.8 monoblock power amplifier
Jason Victor Serinus  |  Jul 24, 2018  | 
It was almost seven years ago that Nelson Pass, whose talks and exhibits I'd covered at many a Bay Area Burning Amp DIY event and audio show, surprised me with a loan of two Pass Laboratories' XA 160.5 class-A monoblock amplifiers. Ten months later, after I'd commented that my system had challenged the XA 160.5s in the bass department, he sent me a pair of XA200.5 monos. I connected those bigger babies to Wilson Audio Sophia 3 loudspeakers and some now-discontinued digital components with Nordost Odin 1 interconnects and speaker cables. Then came my way, toward the end of 2016, the XA200.8 monoblocks ($42,000/pair).

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Audacious AudioTube Power Amp Reviews
Ypsilon Electronics Hyperion monoblock power amplifier
Michael Fremer  |  Mar 22, 2018  | 
Designers of hybrid amplifiers can use solid-state devices in an amp's input stage and tubes in its driver and output stages, as Music Reference's Roger Modjeski did in his RM-200 Mk.II—or they can use tubes in the input and transistors in the output, as Ypsilon Electronics' Demetris Baklavas prefers.

The advantage of solid-state at the input stage can be lower noise. In the RM-200 Mk.II's fully balanced design, carefully matched input devices result in high common-mode rejection and low-noise operation close to the levels achieved with the best input transformers. The RM-200 Mk.II's signal/noise ratio measured a healthy 95.4dB.

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Audacious AudioTube Power Amp Reviews
Jadis JA200 Mk.II monoblock power amplifier
Jason Victor Serinus  |  Feb 01, 2018  | 
"How natural the sound," wrote Jonathan Scull in March 1994, in his Follow-Up on the original Jadis JA 200 monoblock amplifier, which then cost $18,990/pair. "How easy it was to follow the musical line and fall into the music. How deep, controlled, tight, and satisfying the bass. How magnifique the midrange—the traditional strength of the Jadis presentation. How full and satisfying the lower midrange. How open, airy, how right the highs—not at all hard, but very extended and natural. How involving their presentation. How full, how harmonically correct, how wonderfully compelling. How magical."
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Audacious AudioFloor Loudspeaker Reviews
Vivid Audio Giya G1 Spirit loudspeaker
Jon Iverson  |  Dec 19, 2017  | 
It's been more than seven years since the late Wes Phillips reviewed Vivid Audio's top-of-the-line loudspeaker, the Giya G1, for Stereophile, and since then the speaker has been seriously revised. At first glance you still notice the sui generis form; closer inspection reveals fundamental changes that make it, in most respects, an entirely new speaker.
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Audacious AudioGramophone DreamsHeadphone Reviews
Gramophone Dreams #19: HiFi Man Susvara headphones
Herb Reichert  |  Nov 28, 2017  | 
I spend my days comparing cartridges and speaker stands, arguing about imaging and microphone placement, speculating about DAC filters, and lately, sometimes, very secretly listening to headphones connected not to commercially available headphone amplifiers but directly to the outputs of basic tubed and solid-state power amplifiers. No person in his right mind would or should try this—it's too easy to destroy a pair of delicate, expensive headphones. But for me, it's been worth the risk.
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