Integrated Amp Reviews

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Gramophone Dreams #74: Elekit TU-8900 kit amplifier

It was a cold March-in-Brooklyn morning. Clouds had been shedding wintery mix since daybreak. By 9am, birds were flash-mobbing my window, demanding suet. But I was frozen—unable to pull my mind loose from the grave flowings of American composer Ned Rorem's Book of Hours, as performed by Les Connivences Sonores on the album Musikalische Perlen (24/48 FLAC, Ars Produktion/Qobuz). The sounds in my room were sensuous and mesmerizing, and I needed to float in their mysterious energy as long as I could.

I was listening through the most compelling sound system I had assembled since I started writing for Stereophile. The dCS Bartók DAC/streamer was funneling the harmonic purity and hypnomagik of Odile Renault on flute and Elodie Reibaud on harp into HoloAudio's appropriately named Serene preamp, which was feeding Elekit's TU-8900 300B/2A3 kit amplifier, which was sending a few of its triode-tube watts to the TAD's $32,500/pair Compact Evolution One monitors, more compactly known as the TAD CE1TX.

Gramophone Dreams #77: Laissez-faire Listening & the Thöress EHT MKII integrated amplifier

With a system like this, Thoreau would never have gone into the woods to begin with.

Last weekend, I visited an old friend who lives near Walden Pond of Henry Thoreau fame. I hadn't visited him since before the pandemic. He had just finished adding a wing to his house that included a dedicated hi-fi listening room the size and shape of a small church. Below a cathedral ceiling, the sweet spot featured seating for no fewer than 30 guests. Besides serving as his main listening room—he has another one that's smaller—it serves as a large residential parlor with a baby grand piano for use in chamber music performances, which feature prominently in his and his wife's social calendar.

It was a high-SPL thrill to experience his towering, field-coiled RCA theater horns powered by RCA 845 amplifiers.

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.

Harman Kardon HK 990 integrated amplifier

The very first amplifier I bought was a Harman Kardon PC-200, aka The Prelude. It was a 10Wpc integrated, but I chose it over the competition for some of the same reasons that the HK 990 has appealed to me. Almost all amps back in the1960s had a plain cake-pan chassis with tubes, capacitors, and transformers studding the top. Integrated amps had the standard four knobs on the front for input selection, volume, bass, and treble. The HK PC-200 had an enclosed black chassis cage that formed a graceful cowl over the brushed-copper front panel and the six matte-black knobs: for Input selection (with three phono turnover settings), Volume, Bass, Treble, Loudness contour, and Treble rolloff. In addition, it had a Rumble Filter switch. The PC-200 was not only more beautiful than the rest of the push-pull competition powered by EL84 tubes, it also had more useful features. (Take that, you fans of the Grommes Little Jewel!). Over the decades, H/K products have always been stylish and innovative, but in today's fractured marketing world, most such creative energies are applied to audio/video receivers and lifestyle products.

Heed Audio Elixir integrated amplifier

I recently watched Terra, an exceptional film by French directors Yann Arthus-Bertrand and Michael Pitiot. It's not a nature documentary per se, rather a history of life on Earth from lichens to lions, amoebas to humans. Terra boasts stunning cinematography of the natural world, revealing a beauty that nearly softens the film's cautionary message.

"How have our relations with other living beings changed so much?" asks Arthus-Bertrand on his website. "What do we still see, or notice, of the living world around us? . . . We no longer see the wild, we dream of it. It's an age-old fascination, visible in the paintings of the Chauvet Cave. But this dream is today disappearing, vanishing in factory smoke and industrial smog. . . .

Hegel H400 streaming integrated amplifier

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.

Hegel Music Systems H160 integrated amplifier

For decades, I read all the British and American audio magazines, and I pretty much believed everything written therein—with one exception. The equipment reviews published in Stereo Review had an off-puttingly disingenuous quality. I learned a lot from the magazine's reviews of recordings and loudspeakers, but every time senior editor Julian Hirsch wrote that any amp with sufficiently high power, low measured distortion, and high damping factor would sound the same as any other with similar qualifications, I felt estranged from my favorite hobby. Stereo Review's arrogance came off as duplicitous and self-serving. The magazine seemed committed to stamping out all forms of individualized audio connoisseurship.
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