Phono Preamp Reviews

Some of the most innovative thinking on hybrid circuit design these days seems to come from Russian designers. As a group, they are technically very well educated, pragmatic, and unfettered by American high-end didacticism.

My oldest aural memory is my mother singing nursery rhymes to send me off to sleep. After that, it's vinyl records. Being the third child, I benefited from a constant stream of audio-related hand-me-downs, starting with a 1960s kiddie phonograph and a pile of well-worn records from my older brothers.

It's not every Consumer Electronics Show that someone introduces a $29,000 solid-state phono preamplifier—and I miss it. The 2002 CES was one. My show report in the April issue made it seem as if I'd found out about it there, but the fact is, someone clued me in after I'd returned home. I needed to come clean on that.

Years ago, at a San Francisco Audiophile Society gathering, I was lucky enough to spend time with the late, brilliant electrical engineer Roger Modjeski, whose Music Reference RM-200 Mk.II hybrid stereo tube amp is among my most prized hi-fi treasures. I asked him what he knew about transimpedance phono preamplifiers. He grabbed a piece of paper and a pencil and drew a detailed transimpedance phono preamp circuit, quipping, "These have been around forever, but until recently no one has paid much attention to them."

Ever since I stopped using my Audio Research SP10 preamplifier in the early 1990s—its eight phono-stage tubes used to get too noisy too quickly—I tried a variety of standalone phono preamplifiers. Seeing the most service through the 1990s and 2000s were, first, a Mod Squad Phono Drive EPS, then a Linn Linto, both of which I purchased. But when I measured Channel D's Seta Model L, which Michael Fremer reviewed in the August 2010 issue, the Linto was pushed to one side. The battery-powered Seta L (footnote 1) had the lowest noise and distortion I had encountered in a phono preamplifier, and I eventually bought the sample I had been sent for a follow-up review in 2013.

When we last heard from Englishman Tim">http://www.stereophile.com/interviews/990paravicini">Tim de Paravicini, whose EAR">http://www.stereophile.com/amplificationreviews/404ear">EAR 890 amp I reviewed in Stereophile's April 2004 issue, the veteran audio designer suggested that he could make a transistor amplifier equal in performance to any of his successful tube designs. Whatever else it may be, the new EAR 324 is my first chance to test that claim: a stereo phono preamplifier without a single tube in sight. It isn't TdP's first all-solid-state product: That would be the line-plus-phono EAR 312 preamplifier, introduced to no small fanfare a little over three years ago. For all intents and purposes, the 324 is a standalone version of the phono section of that $18,000 flagship: The designs are virtually identical—excepting, of course, their casework and power supplies.

No, folks, vinyl is not dead. And even though my colleague Mikey Fremer is beginning to sound like a broken record, the little guy is right: when it comes to the sound on offer, CD still doesn't come close. There are more turntables, phono cartridges, and tonearms on the market today than ever before. Moreover, with companies like Classic Records, Analogue Productions, and Mosaic offering a steady stream of ultra-high-quality reissues, there seems to be an increasing supply of quality vinyl at reasonable prices.