Tube Power Amp Reviews

There are things that make me feel so unpleasantly lightheaded that some days I worry my cranium might float away like a helium balloon. Like baby animals generated by AI that I can no longer distinguish from real ones. Skin care for tweens. Headlines about American politics that read like headlines about Turkmenistan. The music of Charli XCX.

And being middle aged. Even the term is a con. At 54, I'm not in the middle of anything, and given the way my back feels in the mornings, the thought of living to 108 fills me with terror. There are things about this stage of life that arrive imperceptibly, and not just the physical frailties. Chief among them is the way one's time on earth begins to feel unsettling and sometimes poignant in its suddenly tangible brevity. Now, when I speak to people in their early 20s, I find myself amazed by their belief that life is brimming with endless possibility and lasts nearly forever. I suppose I might envy them, but I remember being their age and wouldn't relish being that person again.

Fortunately, there's more to middle age than bewilderment at cottagecore and one's worsening nocturia.

Closing his review of the AirTight ATM-1S amplifier in the November 2014 Stereophile, Art Dudley wrote, "The AirTight ATM-1S is right up there with the best I've heard: the artisanal, the small, the artistically sensitive, the colorful and characterful, the smart. The AirTight is as serious an EL34 amplifier as I've heard, offering texture, color, poise, musical drive, and rightness, all in good proportion to one another. It also looks nice and represents at least decent if not outrageously good value for the money."

Art's ATM-1S was a step in a long succession of tube amplifiers produced by AirTight since its 1986 founding. First came the original ATM-1; AirTight has also produced the ATM-2 (which used KT88 tubes), the ATM-4 (6L6GCs), the 1S that Art reviewed (EL34s; the S stood for "special"), the ATM-2 Plus, and now the ATM-1 2024 Edition ($14,975).

No one I know enjoys dating. Some friends detest it so much they won't go near it. Maybe they believe the love of their life is waiting to be discovered at a Zumba class or in line at the King Kullen. Or maybe they've quietly given up. Admit it: Dating offers a low probability of success, and if you think too much about just how low, the whole thing begins to seem ridiculous. Yet how do you meet a potential partner without, well, meeting them?

Writing a regular column can be a funny thing; the repetition it requires brings up questions that grow increasingly urgent. Chief among them: What are we doing here, and what is this for? For all the handwringing about story-telling and prose style, what we're up to in the equipment-review section of this magazine is writing about metal boxes filled with wire, capacitors, circuit boards, and other bits of hardware. Life is difficult and goes by in a flash, love and satisfaction are fleeting at best—so why should we care? Well, because some of these boxes manage to connect us to beauty and meaning in a way that can enhance and gradually change our lives. (And yes, both have to be in the mix: Beauty without meaning is anodyne and lacks whupass.)

Like many other industries, audio has its power couples: behind-the-scenes movers-and-shakers who shape the trajectory of the industry and who also happen to be, well, together. Angela Cardas and Josh Meredith of Cardas Audio come to mind, as do Dave and Carol Clark of Positive Feedback, Eli and Ofra Gershman of Gershman Acoustics, Luke Manley and Bea Lam of VTL, Carl and Marilyn Marchisotto of Nola Speakers, Edwin and Gabi van der Kley-Rynveld of Siltech and Crystal Cable. George and Carolyn Counnas of Zesto Audio are a hi-fi power couple I'm especially fond of; I'm always happy to see them at shows, catch up with them on the phone, or exchange emails with them. Their sweet demeanor and good vibrations always lift my spirits.

George designs Zesto's preamplifiers, power amplifiers, phono stages, and step-up transformers, while Carolyn, a talented fine-art painter, gives Zesto's products their unique organic curves...

When I was a young man, blind dates were always laced with anxiety. (Proms were even worse. Once, when I arrived in a rented tux and my father's prized dress gloves, my date's father ordered me to take out the trash.)

From my writing chair, I can see about a dozen moderately priced tube and solid state audio amplifiers.

The five stacked next to my desk are First Watt or Pass Labs models designed by Nelson Pass. Across the room is a hybrid tube/class-D Rogue Sphinx V3 integrated. That black Sphinx is standing on its side behind one of the DeVore Fidelity Orangutan O/93 speakers. Next to the Orangutan is a Schiit Aegir. The most conspicuous amp in the room is my BFF, the Line Magnetic LM-518 IA (footnote 1), which breaks the night's darkness with its tall, bright-emitter 845 triodes. Next to that is Ampsandsound's Bigger Ben KT88/6L6 single-ended speaker and headphone amp.