Tonearm Reviews

If you're going to spend a year-plus in COVID lockdown, it doesn't hurt to have a million dollars' worth of turntables keeping you company, right? That's been my good fortune. Sounds like a roomful, but it's only three: the SAT XD1, the TechDAS Air Force Zero, and the OMA K3 ($360,000, footnote 1).

You'll find this issue's cover girl either strikingly beautiful or homely. Visitor reactions fall strongly into one of those two camps, with nothing in between. I love the looks. Whatever your opinion, the K3's visual distinctiveness cannot be denied. The innards are equally unique.

German engineering acumen and machining excellence—acknowledged and admired worldwide—are nowhere to be seen on AMG's flagship Viella Forte turntable and new 12JT tonearm. That's because, while what's on the surface is cosmetically and mechanically well-turned, the design features and precision engineering that set AMG's turntables and tonearms apart are inside and hidden from view.

At the 2017 Hong Kong High End Audio/Video Show, I found myself sitting next to a turntable manufacturer who shall remain anonymous. A Reed Muse 3C turntable ($20,000) with 3P tonearm sat on a display table across from us.

Lately it seems that the more Rega charges for one of its turntables, the less you get—and from Rega's performance perspective that's a good thing.

While some turntable designs pile on the mass, hoping to tame resonances and better isolate the record from the outside world, Rega has long advocated ultralow-mass designs. What's up with that?

In 2013, when I first wrote about it (footnote 1), the TechDAS Air Force One ($105,000) was that company's best and most expensive turntable; it joined the handful of products that have earned an A+ in our semiannual Recommended Components feature—a rating that remained in place for six years. But too much time has passed since the Air Force One was auditioned by a Stereophile writer, so it has now fallen from that list.

Money, that unreliable buyer of happiness, has at times proven effective at delivering good sound. It can buy other things, as well: Audiophiles can swap cash for products that function as objets d'art, as status symbols, or even as canny investments.

But—do you think money can buy peace of mind for the audio enthusiast who frets over binding voice-coils, leaking capacitors, drifting resistor values, oxidizing connectors, aging or incorrectly biased tubes, and that most pernicious worry of all, distortion and premature record wear from incorrectly aligned phono cartridges? Sadly, most of those neuroses, some quite reasonable, remain unaddressed by cash almighty.

For a phono cartridge to generate current and voltage, something must move: a coil of wire (as in a moving-coil cartridge), or a magnet (as in a moving-magnet type), or a tiny piece of iron (a moving-iron type). In those rare cartridges that depart from the electricity-generating principle of the ones described above, it can be a displacement-measuring device in which a moving shutter modulates a light source to vary a supplied voltage (as in an optical cartridge), or one in which voltage is modulated when a tiny chip of silicon crystal is squeezed by a moving element, which varies the chip's electrical resistance (as in a strain-gauge cartridge). But regardless of what it is that moves in a cartridge, something has to.