Michael Trei

Spin Doctor #23: The Loricraft PRC6i record cleaning machine and the WallySkater v2.1 Pro

Michael Trei | Apr 02, 2025

In my March Spin Doctor column, I gave an overview of my experiences cleaning records over the last 50-plus years and the advances in record cleaning technology over that time. My review of the HumminGuru NOVA ultrasonic record cleaner focused on that increasingly popular approach to record cleaning, using ultrasonic cavitation instead of scrubbing the record with a brush. But if there's one thing I've learned in that half-century of playing around with audio gear, it's that it can be a mistake to embrace a new technology just because of its newness, dismissing what came before as obsolete. The vinyl record itself is a good example of a technology discarded as obsolete, then embraced again by new (and old) generations. You can add vacuum-tube amplifiers, analog tape, and much else in our hobby to that list.

Spin Doctor #22: Cleaning LPs and the HumminGuru NOVA HG05

Phono Accessory Reviews Spin Doctor

Michael Trei | Mar 04, 2025

The first album I ever bought with my own money—cash earned mowing neighbors' lawns—was a British plum-label pressing of Led Zeppelin II. It was 1971. I rode my prized Raleigh Chopper bike from our home on the coast of Denmark down the road a couple of miles to the local record store in a small town called Hørsholm.

After entering the store and browsing for a few minutes, I mustered up sufficient courage to head to the counter with the second Zeppelin LP and ask to listen to it. All was musical bliss for a few minutes. Then just as I was really getting into it, about halfway through "What Is and What Should Never Be," the clerk decided I'd heard enough and rudely interrupted my listening session with a "get lost kid" look on his face. I surprised him by pulling out my lawn-mowing cash and buying the album. I pedaled home furiously, as fast as I could, and slapped my first LP onto the family Garrard Autoslim, which I wrote about in Spin Doctor #11.

Spin Doctor #21: the Kuzma Safir 9 tonearm

Spin Doctor Tonearm Reviews

Michael Trei | Jan 29, 2025

The British audio scene from the late 1970s through the mid-1980s was pretty strange. Audio as a hobby was a big deal, with widespread appeal to a much younger crowd than today. Audiophiles were guided by a flurry of what my friends called "hi-fi pornos," audio magazines that filled the racks at the newsagents.

Far more than you see today, there was a strong nationalist bent, with some writers displaying an open bias against anything that wasn't British. Magazines' editorial departments presented readers with a clear, specific doctrine of how a system should be built and what components readers should acquire.

As a schoolboy with no system of my own, I lapped up these suggestions, and when I returned to the US in 1980 to attend university, I was finally able to start building a system that conformed to the system-building rules that had been drilled into me.

Spin Doctor #20: The Rega Naia Turntable & Humminguru S-DUO Pro Ultrasonic Stylus Cleaner

Phono Accessory Reviews Spin Doctor Turntable Reviews

Michael Trei | Jan 08, 2025

To watch as Rega very slowly expands its turntable offerings upmarket requires the patience of a Thomas Pynchon addict waiting for each new tome from the notoriously slow-working and reclusive author. Starting out 51 years ago with just one turntable model, Rega now offers turntables at seven different price levels, plus a few minor variations in between. During the "lost years" of waning turntable and vinyl sales in the 1990s and early 2000s, Rega boss Roy Gandy candidly admits that the company put little effort into advancing its turntable designs, as sales at the time didn't really justify the investment. Rega had shifted its focus to digital source components, amplifiers, and loudspeakers, and even introduced a tube CD player.

That momentum finally started to reverse about 15 years ago, as the vinyl revival started to kick in and turntable sales began to pick up again. By this point, Rega was a much larger company and was able to leverage its growing reputation to engage with cutting-edge high-tech manufacturing subcontractors. Through these new relationships, they created a test bed turntable called the Naiad that would extend their design philosophies as far as was feasibly possible...

The Naiad's high price was the result of some of the design choices that had already been made, when scaling up for production wasn't even under consideration. Rega knew it wouldn't be too difficult to create a more production-ready version, into which they could distill most of what they had learned from building the Naiad. The result is the Naia, where with just a few simple changes, they have managed to undercut the Naiad's price by more than 70%, down to $12,995.

Spin Doctor #19: An exotic Audio-Technica cartridge and a Vivid flagship speaker

Phono Accessory Reviews Phono Cartridge Reviews Spin Doctor

Michael Trei | Dec 04, 2024 | First Published: Dec 03, 2024

I think of Audio-Technica as the maker of some of the best high-value cartridges out there. From the ubiquitous AT3600L, which can be had for a little more than a Big Mac meal at McDonald's, to the popular OC9 moving coil series, A-T's cartridges have long been easy-to-recommend options that deliver great sound mounted on just about any turntable.

But occasionally, Audio-Technica likes to show off its technological chops by launching a cartridge that breaks new ground. Last year, they celebrated their 60th anniversary by stunning everyone with the AT-MC2022, which uses an outrageous integrated stylus and cantilever fashioned from a single piece of lab-grown diamond. In 2016, they flexed their capabilities with the AT-ART1000, which completely reconfigured how the elements of a moving coil cartridge are arranged, with spectacular results.

Now, eight years after the AT-ART1000 was launched, A-T has introduced the AT-ART1000x, which incorporates several small but important improvements.

Spin Doctor #18: Moonriver 505 Phono Stage, DS Audio E3 Optical Phono Cartridge System

Phono Cartridge Reviews Phono Preamp Reviews Spin Doctor

Michael Trei | Nov 07, 2024

I spent the second three-and-a-half years of my life living with my family in Sweden. Our home was on an island just outside of Stockholm called Lidingö, which locals tell me today is like the Beverly Hills of Stockholm, a fancy place where the rich and famous live. Fifty-nine years ago, it wasn't quite so fancy; it just seemed like a cool place for a little kid from New York City to grow up.

I can't honestly say I remember many details about my life between the ages of three and a half and seven, yet apparently some of that Swedish way of thinking ended up influencing my life view, specifically, how Swedes approach consumer goods and purchasing decisions.

Spin Doctor #17: Paging Dr. Löfgren, ViV Laboratory's Rigid Float 9ha tonearm

Spin Doctor Tonearm Reviews

Michael Trei | Sep 26, 2024

It started one evening when I was killing time watching YouTube videos and stumbled across a 2017 talk given by Jonathan Carr, Lyra's brilliant cartridge designer (footnote 1). After discussing his design and Lyra's manufacturing processes for about 18 minutes, Carr opens the floor to questions. Someone asks which of the many cartridge setup parameters he feels is the most important. I was floored when the first thing Carr said was that "horizontal tracking error is not very important at all." What? I couldn't believe I was hearing this from the guy who writes owner's manuals with super-specific specifications, like tracking force measured to a 100th of a gram and loading recommendations with wide but oddly specific ranges like 97.6 to 806 ohms. Did he really believe that the tonearm geometry calculations of Löfgren, Stevenson, et al, weren't such a big deal?

For decades I have painstakingly used the best tools available to perfect these settings with every cartridge I install; now a guy whose opinion I respect deeply is saying it's not very important.

Spin Doctor #16: Sutherland Dos Locos Phono Preamp, Dynavector XX-2A Phono Cartridge

Phono Cartridge Reviews Phono Preamp Reviews Spin Doctor

Michael Trei | Aug 28, 2024

Ron Sutherland makes a strong case for being crowned the king of all phono preamps, though I expect he would blush at any such suggestion. In 1979, with degrees in physics and electronic engineering (where his final project involved designing and building a digital logic–controlled preamp), he teamed up with Gayle Sanders to found electrostatic speaker company MartinLogan. ("Martin" and "Logan" are Sanders' and Sutherland's middle names, respectively.) But after a few years, he found the increasingly corporate mindset at M-L a bit stifling, so he decided to go his own way. Ron wanted to build gear he thought was cool and fun while not being directed solely by its commercial potential. He joined up with his brother to start Sutherland Engineering, creating hi-fi equipment that piqued his own interest and hopefully that of a bunch of customers.

At first, Sutherland made a wide range of components, including preamps, power amps, and DACs, but gradually he focused more and more on phono preamps. Today that's the only thing he makes...

Spin Doctor #15: Austin AudioWorks Black Swan phono preamplifier

Phono Preamp Reviews Spin Doctor

Michael Trei | Jul 30, 2024

Forty years ago, as I was starting out on my audio journey, I railed against the flashy mainstream audio gear of the day. To me less was more, and I tried to convince my friends that my small, austere British-made audio rig, including what my friends jokingly called my Lynn Swanndek turntable (after the Steelers wide receiver), really did sound much better than their big silvery Japanese stacks loaded up with shiny knobs, switches, and meters. Audio was all about the sound after all, and I wasn't interested in some dazzling visual display that had nothing to do with what I was hearing. I gravitated toward gear that wasn't flashy or fancy looking, feeling that meant that the effort and expense to create it went where it counted most, to the parts that made it sound great.

The Spin Doctor at High End Munich 2024

Munich 2024 Spin Doctor

Michael Trei | Jul 12, 2024

Last month, I talked a bit about some of the new gear being exhibited at AXPONA, America's big hi-fi show, held near Chicago. Well, every year, as soon as that show is over, it's time to get ready for the Big Kahuna of audio shows, High End Munich.

Admittedly, I have never attended the big shows in Shanghai, Hong Kong, or Warsaw, but it would be hard to imagine either one outdoing Munich. The Warsaw show calls itself the second biggest show in Europe, deferring, presumably, to the Munich show. Munich is so big that it even has a sideshow, HiFi Deluxe, just down the road. HiFi Deluxe caters to exhibitors who got shut out of the big show, which despite its hugeness is oversubscribed. It can all become a bit overwhelming.

The main Stereophile crew covering the Munich show—Ken Micallef and Jason Victor Serinus—did all the heavy-duty legwork, posting highlights here. I toured the halls to see what was new, collecting the best, most Spin Doctor–ish things for this report. Here's a smattering.

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Michael Trei

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