Michael Trei

Michael Trei  |  Apr 30, 2024  |  3 comments
"I think both moving coil and moving magnet cartridges are terrible." That's what legendary Canadian audio designer Ed Meitner told me when I asked about the pioneering transimpedance current drive phono stage he created for his Meitner PA6 preamp some 40 years ago.

Meitner has been designing innovative hi-fi gear for the pro and consumer audio markets for more than 50 years, but for most of the last 30, he has been best known for his work with high-resolution digital audio and DSD recording. Despite this focus on digital—and despite that comment about the two leading phono cartridge technologies—deep in his heart, Ed still loves analog and has fond memories of the Kenwood optical cartridges from the 1970s, which I discussed in last month's Spin Doctor column. So when Ed read that a company in Japan called DS Audio was bringing back an improved version of the optical cartridge using modern materials, he contacted designer Tetsuaki Aoyagi to learn more.

Michael Trei  |  Mar 19, 2024  |  1 comments
Over the last 50 years, I must have installed well over 1000 phono cartridges, but I still remember the very first one: a Goldring G850 I put into the family Garrard Autoslim turntable when I was 11 years old. In 1973, the G850 was the least expensive moving magnet cartridge Goldring made. The change from the flipover-stylus ceramic cartridge that came with the Garrard wasn't an attempt to satisfy a youthful audiophile itch but, rather, a result of my first encounter with a system compatibility problem.

A few months earlier, I had convinced my nonaudiophile dad to upgrade the family stereo. We went from our ancient Monacor SMX-50 tube receiver to a pretty weird but less ancient Sony all-in-one cassette system called the TC-133CS. I failed to understand that the new Sony's magnetic phono input was incompatible with our old ceramic cartridge. Once I figured that out, I tried to convince my dad that what we really needed was a Shure M75ED. After all, that cartridge came from the same company that made the legendary V-15 Type III, widely regarded as the best cartridge in the world at the time. My dad, however, had different plans. Guided by his home-product purchasing bible, Consumer Reports, he decided we should go instead with the less-costly Goldring.

Michael Trei  |  Feb 28, 2024  |  0 comments
Twice in the last month I have been at someone's house, servicing their turntable, when they asked whether they should be considering a new phono preamp that offers additional playback equalization curves besides the standard RIAA. My usual reaction is to thumb through their record collection, where, more often than not, I find that they don't own a single record that was cut using a curve other than RIAA.

Phono playback EQ is one of those audiophile topics that stokes some people's passions, with plenty of disagreements about how important it is. I have seen grown men get into heated discussions about the history of record EQ curves, but in truth, the subject is only likely to matter if you listen to a lot of 78s or original mono LPs pressed between the late 1940s and the mid-1950s.

Michael Trei  |  Jan 24, 2024  |  2 comments
In 1985, I visited what was then known as Soviet Estonia with my family. My paternal grandparents, Mimi and Pop, had emigrated to the US from this small Baltic country in 1929. Fifty-six years later, after more than a decade of rejection, the family was granted permission by the Soviet authorities to visit our ancestral homeland, and the whole family, including Mimi, made the trek. (Pop died in 1962.)

Once we were there, we were more or less free to move around in the capital city Tallinn, but leaving the city was strictly forbidden, except as part of a planned group excursion with our KGB minders—er, "Intourist guides."

Michael Trei  |  Jan 04, 2024  |  4 comments
Photo by Himanshu Ratnaka

In prior screeds, I have discussed the category of turntable designers I like to call deep thinkers, who twist their brains to come up with fresh thinking about how to approach the task of playing a vinyl record. If there is a poster boy for deep thinkers, it's got to be Simon Brown.

Brown is based on the South Island of New Zealand. I'm thinking that being in such a far-flung part of the world must have given his head plenty of space to get creative. First, in 2011 he created The Wand tonearm, a striking unipivot design that features a fat carbon-fiber armtube nearly 1" in diameter (below). Art Dudley wrote about The Wand in 2019, and I highly recommend that you read his thoughts, especially about his struggles to set up The Wand.

Michael Trei  |  Dec 06, 2023  |  1 comments
About four years ago, the stand-alone tonearm market went through a bit of a crisis. First, in December 2019, SME announced that it would stop selling tonearms separately, effective immediately. From that point on, SME tonearms would be available only in combination with SME turntables. . .

Five months later, in May 2020, we received the second blow in this double whammy of bad tonearm news. That's when the Ichikawa Jewel Company of Japan, maker of Jelco tonearms, announced without warning that they were shutting down operations, closing their doors for good. They blamed a combination of an aging workforce, worn-out tooling that needed to be replaced, and the coronavirus pandemic. . .

We lost two key players all at once, but it's not as if we suddenly had nowhere to turn for tonearms. Turntable manufacturers like Acoustic Signature, Clearaudio, Origin Live, Pro-Ject, Rega, and VPI all sell their tonearms separately . . . A number of smaller tonearm specialists have popped up in recent decades: Acoustical Systems, Graham, GrooveMaster, Kuzma, Reed, Schick, Schröder, and at the ultrahigh end, Swedish Analog Technologies. Now we can add Korf Audio to the list.

Michael Trei  |  Oct 27, 2023  |  6 comments
When I think about landmark years in the history of British hi-fi, 1973 sticks out. Three companies got their start in the first half of that year that went on to become cornerstones of the British audio scene: Linn Products, Naim Audio, and Rega Research. That means they're all celebrating their 50th anniversaries in 2023.
Michael Trei  |  Sep 21, 2023  |  7 comments
I have found that turntable designers typically fall into one of two camps. First are what I call the obsessive machinists. These are the people with impressive manufacturing chops and a sharp eye for fine detail and precision. For them, making a better turntable usually involves taking what we already know and simply doing it better.

Whether it's a thicker chassis, more powerful motor, more precise bearing, more effective isolation system, or something else, the emphasis is always on stepping things up a notch or two, rather than reinventing the wheel. This obsession can result in some impressive 'tables—some of the most impressive in the world, with awesome attention to detail. But are they the best sounding?

The other camp is what I call the deep thinkers. They approach the task of playing a record from a theoretical perspective and leverage their knowledge of physics to come up with fresh and innovative designs. The results may look unconventional, or even odd at first glance, but when such lateral thinking clicks, it can really push the boundaries of what's possible.

Michael Trei  |  Aug 29, 2023  |  5 comments
The next time you're preparing to play a record, try doing a little experiment. Once you have the record mounted and spinning but before you lower the stylus into the groove, lower your gaze to just below record level and look for a gap between the platter and the record. It helps if there's a light source or a brightly colored wall behind the platter. You may discover a gap—that very little of the record's playing area is making true contact with the platter mat or (if there is no mat) the platter. Another way to test this is to take a record you don't care much about, put it on the platter, then tap with your finger in the groove area listening for a click as your finger pushes the record down and it contacts the platter surface.

Warps obviously lead to such problems, but even records that appear flat make scant contact with the supporting surface. Turntable and aftermarket accessory designers have recognized this problem for decades.

Michael Trei  |  Jul 27, 2023  |  3 comments
10. Acoustic Signature's listening room with its massive PBN loudspeaker system.

May has long been one of my favorite months of the year, mostly because it means it's time for the Munich show, the annual gathering of the high-end audio tribe in the Bavarian capital. High End Munich 2023 marked my return to the biggest audio show in the Western world following three years of lockdowns and travel restrictions, so I was eager to get back to the land of Wiener schnitzel and bratwurst.

This year, as an added bonus, I was invited to visit the production facilities of turntable and tonearm manufacturer Acoustic Signature, which is based about 110 miles west of Munich, near Stuttgart.

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