Integrated Amp Reviews

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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.

John Atkinson  |  Dec 13, 2024  | 
While there haven't been any follow-up reviews in recent issues of Stereophile, the January 2025 issue features further coverage of two one-box solutions that were reviewed in 2024—the Hegel 400 streaming integrated amplifier and the T+A R 2500 R multi-source receiver. All the user needs to do to create a complete audio system is to couple one of these products with a pair of passive loudspeakers.
Alex Halberstadt  |  Dec 05, 2024  | 
I have a day job at a museum. One of my favorite things about working there is taking the elevator from my office down to one of the floors open to the public; I walk into the galleries through a discreet panel in the wall. This makes me feel like I'm in one of those horror-movie manors with a tunnel concealed behind a bookshelf. Sometimes I startle people, which I kind of enjoy.

Mostly I like spending time looking at art, especially in the early mornings when the galleries are empty. Lately, I've been watching art handlers hanging a roughly 100'-long tapestry depicting some manner of planetary jetsam—or maybe they are aquatic plants—by Nigerian artist Otobong Nkanga. And I make regular trips to a small theater to watch mesmerizing footage of Orchard Street in working-class lower Manhattan, shot in 1955 by veteran filmmaker Ken Jacobs. Captured on warm, saturated 16mm film, the long-gone people on the screen appear as vividly alive as the museumgoers around me.

My favorite-ever thing at the museum, though, is a life-sized kitchen. Austrian architect Grete Lihotzky designed it for a Frankfurt housing complex in 1927.

Tom Fine  |  Oct 10, 2024  | 
The Internet of Things has arrived at the stereo rack. Many hi-fi systems are now connected to the wider world, controlled by phones and tablets. Complex front panels with many switches and buttons have practically vanished; those still around are retro pieces or style statements. Little front-panel touchscreens with complex menu trees have been rendered vestigial or at least redundant. Designers of receivers, integrated amplifiers, and DACs must now at least consider incorporating a streaming module and a device-control app. In certain component categories and certain price brackets, a built-in app-controlled streamer is now a key part of the value proposition, much as a tuner was back in the days of terrestrial radio.

The Hegel H400 combines the functions of an integrated amplifier, DAC, and streamer.

Herb Reichert  |  Sep 27, 2024  | 
In 1989, I bought my second pair of Rogers LS3/5a's from a guy on Staten Island who had them hooked up to a Musical Fidelity A1 integrated amplifier. After playing the speakers for me, he began removing his zip-cord speaker cables and paused to show me how, at the amplifier end, his red-plastic Pomona Electronics banana plugs had partially melted from the A1's heat. We both laughed.

After it first appeared in 1985, the A1 quickly became famous for its hot top plate. The top plate got as hot as it did because it was used as a heatsink for the output transistors, which were biased highly into class-A. The A1's hot top made tabloid headlines, but for me it was its bold, sinewy, un-transistory sound and timeless, sharply drawn styling that distinguished it from cooler running Brit-fi competitors such as Audiolab's 8000A, Creek's 4040, A&R Cambridge's A60, and NAD's 3020.

Now it's back, priced at $1779, looking and feeling cooler than before.

Ken Micallef  |  Aug 01, 2024  | 
"Hybrid" technology—specifically, mixing tubed and solid state in the same amplification device—stirs a deep desire for many enthusiasts. It has the potential to embody a perfect blend: the tonal liquidity, presence, and spaciousness of tubes coupled with the power and dependability of solid state. It's potentially an end-game technology.

Still, I have long remained skeptical. I am, I confess, a certain kind of audiophile, a blend of purist and traditionalist. I favor older technologies and simpler circuits. Amplifiers—including integrated amplifiers—should be tubed, input to output. Rectification? Tubes of course. I've even entertained OTL designs—the idea of them at least, though my experiences have been mixed.

Tom Fine  |  Jul 19, 2024  | 
The hi-fi receiver has been many different things. Early examples, like the Harman Kardon "Stereo Festival" TA-230 from 1958 (said by modern-day Harman/Samsung to be the first stereo receiver), featured separate FM and AM monophonic tuners that could assign a speaker to each if you wanted to listen to what was then a fad: stereo broadcasts over two stations (left channel over FM, right over AM, for instance). Standardized FM stereo broadcasting began in 1961, and by then, receivers had evolved into large, complex, nearly complete stereo systems; an example of that was the Fisher 800.

It might be nice if the receiver can connect to a modern TV, which will have either TosLink or HDMI-ARC output, or both. For those of us who still own a bunch of CDs, we might as well include a robust DAC—and maybe even a built-in CD transport. Throw in FM analog and digital tuners, and voilà, you have the R 2500 R, the "21st Century Receiver" from T+A Elektroakustik of Herford, Germany, southwest of Hanover.

Ken Micallef  |  Jun 27, 2024  | 
For 16 years, I bled jazz. Countless hours alone in my practice shed, honing technique, recording myself for brutal self-analysis, dissecting and transcribing master drummers' solos note for note. My dream was to transcend technique, to exist in a state of pure reaction among musicians in perfect communion, where improvisation flows as effortlessly as thought.

The years melted away—George Lawrence Stone's sticking variations, Benjamin Podemski's concert drum solos, dog-eared "Real Book" charts, college big band concerts, smoky jam sessions, a basement practice routine that nearly deafened Mom. Once I was in NYC, there were classes at Drummer's Collective.

With intense application, playing became rote. But in rare moments of surrender, it wasn't me playing the music anymore. The music played me—ideas transmitted effortlessly, without thought, guided by some unseen force: maybe the woman in the third row, maybe the ghost of Tony Williams. In such moments, when fatigue stilled the mind, instrument and music intertwined, a single entity responding not to conscious thought but to some unknown, unknowable force. What ensued was beyond my mental reach.

Tom Fine  |  Jun 21, 2024  | 
Life is not for Goldilocks. "Just right" is elusive. Every day, we face countless situations where our choices are either too many to navigate or too few to find satisfaction. Behavioral scientists call those dissatisfying alternatives "choice overload" and "choice deprivation," respectively.

I think choice overload may scare some audiophiles away from the glorious world of streaming, where the bulk and finite scope of a physical music-media collection can be traded for (or augmented by) many more listening choices. If you're willing to explore and choose, you can hear as deep and wide as most musical rabbit holes are likely to go, and then return to your favorite songs with a couple of finger-pecks on your phone.

For some people, all that choice is intimidating, paralyzing, overwhelming, highly stressful. That's no way to enjoy music! I sympathize. I'm not ready to leave physical media behind. But I am very happy in the streaming present. In fact, I urge the hesitant: Cast aside your fears and trepidations, sign up for a free month of Qobuz, Spotify, Tidal, Apple Music, you decide—then take it slow. At first, avoid browsing—just search for the music you want to hear. Try something new each day. Over time, you'll adjust to the overwhelming abundance. By the end of the month, especially with a full-resolution service like Qobuz, Tidal, or Apple Music+HD, you may not want to give it up. The future-present beckons loudly.

Herb Reichert  |  Jun 07, 2024  | 
I know from experience that the manner in which a sound system occupies its environment affects every listening session, its feel and its quality. Which is what first attracted my attention to Fern & Roby products: This is serious, quality audio gear that looks elegant and unpretentious. The component I'm about to describe, Fern & Roby's new, $8500 Amp No. 2 integrated amplifier, is bureau friendly. It looks more stylish than tech-savvy, and it is not big or heavy, but its sound quality would put the sound of many amp farms to shame. A system consisting of an Amp No. 2, a pair of Raven speakers, and a Montrose turntable exemplifies owner-founder Christopher Hildebrand's materials-based, simple-is-better, form-follows-function design ethic.
Jason Victor Serinus  |  Jun 06, 2024  | 
Six years after Hans-Ole Vitus, the founder of Danish company Vitus Audio, visited the United States to premier his first three products at CES 2004, Michael Fremer went gaga over the company's top-line MP-P201 Masterpiece Series phono preamplifier. Thirteen years later, at AXPONA 2023, it was my turn to be blown away, this time by the sound of a $385,000 Vitus Audio top-of-the-line Masterpiece series front-end and amplifiers that sang through price-commensurate Estelon Extreme Mk II loudspeakers.

In between—and not for want of trying—Vitus's presence in these pages has been limited to show reports. It's time to change that.

Robert Schryer  |  May 03, 2024  | 
It may be strange to read what I'm about to say in the pages of Stereophile, but it's the cold hard truth so here goes: Audio reviews are inadequate. They don't tell the whole story. They come up short and can even misdirect.

It's not their fault, or at least sometimes it isn't. Even the good ones can't tell you how something will sound to you—let alone make you feel, the ultimate point—in your own room. As helpful as they may be, they can't address the elephant in the listening room: synergy.

In reviewing the Octave Audio V 70 Class A integrated amplifier ($12,000 and up; $15,900 as reviewed), I was reminded of the importance of synergy in our hobby.

Herb Reichert  |  Apr 09, 2024  | 
I've been to a few bowling parties and passed a bottle around a few fire pits, but I've never watched an audiophile unboxing video. Lately though, I have been paying closer attention to my first impressions of each new audio product as it enters my realm.

I'm finding it interesting to notice how a device previously unseen and unheard declares itself one small step at a time as I open its box, feel its heft, observe its form, study its manual, and, finally, wire it into my system. Those start-up experiences, plus my gut feelings during my first moments of music listening, establish a tone of innocent discovery I wish would last the whole month. It never does.

I mention this because my first impressions for my first-ever review of an ARCAM product, the Radia A25 integrated amplifier, were in that "innocent and receptive" mode from the instant I saw the box sitting outside my door.

Alex Halberstadt  |  Feb 21, 2024  | 
In 1976, a Soviet fighter pilot named Viktor Belenko made an emergency landing in Hokkaido, Japan. He was flying a MiG-25 supersonic interceptor jet and, upon touching down, requested political asylum. This proved to be a stroke of brilliant luck for the Americans. The MiG-25 remains one of the fastest and highest-flying aircraft ever produced, and Belenko's defection allowed them to have a tantalizing look at the technology inside.

Among the top-secret loot found inside the Soviet jet was a large, heavy triode vacuum tube used as a regulator in the power supply of the MiG's radio. It was known as the 6C33C. (The enormous electromagnetic pulse caused by a nuclear explosion would fry a transistor. Tubes were used in military equipment with such an eventuality in mind.)

Ken Micallef  |  Feb 08, 2024  | 
When I reviewed Luxman's L-509X flagship integrated amplifier, in May 2018, that sleek machine shook me to my vitals. I wrote, "Record after record, the L-509X illuminated every important aspect and area of the recording. It lived and breathed in the air around the notes, consistently creating big, solid, spatially natural images that presented me with a) the roundness and complexity of each instrument, b) a holistic sense of the musicians' intent, c) excellent touch and texture and impact, and d) a unified whole, regardless of musical style or dynamic level." I concluded, "the Luxman L-509X integrated amplifier takes a different path to musical involvement. The L-509X is one of the most intimate-sounding, dynamic, texturally nuanced, truthful purveyors of music of my experience."

Luxman's new flagship integrated, the L-509Z, has the same thick aluminum top plate and steel casework as its forebear and weighs a similarly knee-crushing 64lb. The older L-509X cost $9495; its newer, younger sibling rachets that up to $12,495. The front-panel controls are nearly identical, including those big, eye-catching dual VU meters; except for a new 4.4mm Pentaconn five-conductor mini headphone jack and a mute button, the Z matches the cosmetics of the X to a T. But as in all things, appearances can be deceiving.

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