Phono Preamp Reviews

The two biggest sonic jolts I've experienced involving phono preamps were from two very different ones: the Petr Mares's Connoisseur 2.0 and Boulder's 2008, which was reviewed in the July 2002 Stereophile. The first was hand-built, single-ended, housed in a wooden case, limited to 100 units, and, when I got to hear it in the mid-1990s, cost around $6000, or about $10,000 in today's dollars. The other was a feature-laden, double-chassis monument to flexibility and surface-mount high technology. It featured beautifully finished, flush-mounted mirrored buttons your fingers just wanted to press.

Almost exactly a year ago to the day that I'm writing this—March 11, 2020—the WHO officially declared COVID-19 to be a pandemic. If you weren't paying attention, maybe you didn't see it coming (incredibly, some still deny the pandemic's existence), but I had already canceled a March 14, 2020, flight to Atlanta to speak to the local audiophile society. I'd made the plans for that visit at the Florida Audio Expo a few weeks earlier. Remember hi-fi shows?

I don't like being pigeonholed as a reviewer of exclusively expensive audio components—because I'm not, as anyone who regularly peruses Analog Planet knows. So, to ease the pain of reviewing the half-million-dollar Air Force Zero turntable—you'll find that review elsehere in this issue—I figured I'd cover some more reasonably priced analog gear here in Analog Corner.

One privilege of being a Stereophile columnist is the opportunity to cover products from smaller, less well-known manufacturers, including those that don't have wide enough distribution to qualify for a full review. One such company is Victorville, California–based Paradox. I'd never heard of them until I received an email from Terence Robinson, the company's owner. The email included a description of a phono preamplifier that so intrigued me that I asked for a review sample.

The German company AQVOX Audio Devices has produced an innovative moving-coil/moving-magnet solid-state phono preamplifier, the Phono 2Ci, that's as intriguing for its technology and performance as it is for its relatively low price: $1400. The zero-feedback, op-amp–free circuit uses a compact switch-mode power supply that's built into the chassis and features conventional voltage gain for moving-magnet cartridges via its RCA jacks, and current gain for moving-coil cartridges through the balanced XLR inputs. Rear-panel switches select between RCA or XLR inputs and offer a convenient ground lift. Either the single-ended or the balanced outputs can be used with either input. Unfortunately, the tight spacing of the RCA input and output jacks, which are mounted on the circuit board, will somewhat limit your choice of cables: Pairs of thick-barreled plugs will have difficulty fitting.

"Everybody's gotta get into the act!" Jimmy Durante used to say. That's what's happening with phono preamplifiers—they just keep being built, and I keep getting them for review. Up for evaluation in next month's column are new models from Perreaux, Musical Fidelity, Graham Slee, and a Chinese one, Ming Da. You can bet there'll be more.

Audio Research's long-promised "final statement" phono preamplifier has finally arrived, and its price is $3500 less than the originally rumored $10,000. That's a pleasant deviation from the audiophile norm, but at $6495, the Reference phono still boasts a steep ticket. That's more than twice the price of the $2495 PH3 SE, AR's previous best—a class sonic act itself.