Tube Preamp Reviews

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Canor Hyperion P1 preamplifier

Just when I thought my equipment reviewing schedule was locked in for many months, an unavoidable last-minute cancellation sent me scrambling for an alternative.


Jim Austin to the rescue. To his query, "How would you like to review a tube preamp from Canor, of Slovakia?" I answered with an enthusiastic "yes!"


In addition to the exciting prospect of reviewing the first tubed preamplifier to come my way in a long time, hearing the Canor Hyperion P1 preamplifier ($12,500) in my system would enable me to get a handle on the sound of gear I'd only encountered once, at High End Munich 2024. As is often the case at shows, I left without a clear sense of the preamp's contribution to the system's sound, let alone its ultimate potential.

McIntosh C12000 preamplifier

As I was talking with an audio-retailer friend recently, he reached for a Rolls-Royce metaphor to describe the McIntosh brand. Expensive? Sure, but not as expensive as some boutique high-end products. Fast? Sure, but there are faster things—also bigger things, smaller things, wackier things, and cheaper things.


But when you look at a Rolls or a Bentley, you immediately recognize it for what it is, and you want to sit down in it. And so it is with McIntosh, except you don't want to sit down in it; you want to sit down in front of it, between the speakers of the hi-fi system it occupies.


The C12000 is McIntosh's current flagship preamplifier. It's part of McIntosh's Hybrid Drive series of products that combine tubes and transistors in interesting ways.

Audio-GD Vacuum HE1 XLR line preamplifier

In red letters on the first page of Chinese audio manufacturer Audio-GD's website are these words: Wisdom in mind, enthusiasm at heart.


I like this goodwill greeting because it sets a mindful tone. I presume that sentiment was issued by one Mr. He Qinghua, because farther down the page, it states, "All Audio-GD's products are designed and developed under the leadership of Mr. He Qinghua." When I began my auditions, I took this salutation as an advisement, making it my plan to study Audio-GD's Vacuum HE1 XLR line-level preamp with as much wisdom as I could muster and the enthusiasm of high expectations.

Miyajima Lab Wo-1 preamplifier

A phenomenon formerly unique to Japan, which in recent years has been emulated in cities around the world, is the jazz café (known as jazz kissa in Japan), where salarymen can find respite from their hectic lives, loosen their ties, and enjoy hi-fi jazz over coffee or a drink. Jazz kissaten are typically charming, smaller shops, traditionally furnished and paneled in beautiful wood, which serve superb artisan coffee in artful ceramic cups.


Such respect for artistry, craftsmanship, and attention to detail—the Japanese word is shokunin—is reflected in many aspects of Japanese life. This is where you find double handrails to accommodate people of different heights, intricate, ornately designed manhole covers, and bento lunch boxes with hand-carved vegetable figurines. While upholding strict conformity to societal norms, the Japanese highly value creative individualism. This shokunin mindset underlies their reverence for artisanal expression—and their love for jazz.


Japanese audio, much like jazz kissaten, reflects the shokunin mindset: craftsmanship pursued with both pride and humility.

Engström Monica Mk3 line preamplifier

Have you ever walked through fresh snow in the woods with all your senses heightened? When I did, shortly before the New Year, it was as if I was seeing nature for the first time, through a fresh lens. Never had white-coated surfaces appeared so white. Nor had shapes seemed so magical. It felt as if I had happened upon a pristine landscape unexplored by human or beast.

Schiit Freya + line preamplifier

What am I doing with a vacuum tube preamplifier? I haven't owned a tubed preamp since I bought a Sonic Frontiers Line 3 preamplifier at the turn of the century. I set that aside within a few years as I moved into multichannel because multichannel tube-based electronics were, and still are, rare. My last home experience with a vacuum tube was with a PS Audio Stellar M1200 monoblock power amp, which is a hybrid with a 12AX7-based input stage.

Zesto Leto Ultra II line preamplifier

What sort of audiophile are you?


I think of myself as a critical listener, perhaps a purist, definitely an enthusiast, of music and audio, who enjoys both the journey and the nuts and bolts. I like my hi-fi direct, simple, and personal. Also, I guess I'm a little bit old-school: tube-driven amplifiers with point-to-point wiring; vinyl, preferably early pressings; spun with belt-drive or idler-drive turntables. I listen to digital audio, too—and when I do, I prefer nonoversampling DACs. I like high-efficiency, high-sensitivity floorstanding loudspeakers and prefer them horn-loaded.

Audio Research Reference 6SE line preamplifier


"As long as you're happy."


That's the line long uttered by the most dreaded members of my family, and their friends, whenever they tried to pry into my personal affairs. Often the last word, "happy," was uttered with a downward cadence and accompanied by a shrug.


Then came the kicker. "You are happy, aren't you?" said with eyes boring into my soul. "Well, as long as you're happy."

PrimaLuna EVO 400 preamplifier

I am an artist-painter and an audiophile. When I listen to recorded music, I sit in the sweet spot and stare at the empty space between the speakers. And while I listen, I survey and critique the soundfield, as if it were an unfinished landscape painting in my studio.


As I observe the soundstage and the apparitions of musicians within, I notice the dimensions of the recording venue (and/or microphone placement), as well as the physical energy of the entire vibrating illusion.

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