Fred Kaplan

On the heels of its revelatory release of long-lost sessions by Larry Young in Paris during the mid-1960s, Resonance Records pulls another treasure from the archives—Sarah Vaughan's appearance at Rosy's, a now-defunct New Orleans jazz club, in May 1978.

Steve Cardenas/Ben Allison/Ted Nash: Healing Power: The Music of Carla Bley, Matthew Shipp Trio: World Construct and Tyshawn Sorey Trio: Mesmerism.

In my review of Krell's FBI integrated amplifier in the July 2007 issue, I noted that $16,500 (it now costs $18,000) seemed an astonishing chunk of change to spend on a product category generally associated with "budget" gear. Now, the 2011 edition of the Stereophile Buyer's Guide lists no fewer than 19 companies selling integrated amps for five figures—one goes for $100,000!—which perhaps suggests that economic slumps prod even the well-heeled to alter their habits. There are, after all, advantages to cramming a preamplifier and a power amplifier into a single box: you need one less pair of interconnects, one less power socket, one less cabinet shelf. And if the integrated contains state-of-the-art parts, elegant circuitry, and a hefty power supply, what's the problem?

And so we have Simaudio Ltd., the veteran Canadian high-end electronics firm, leaping into this realm after 30 years of business with the Moon 700i, priced at $12,000—only two-thirds the price of the Krell, but aimed at the same downsizing but still toney demographic.

In the May 2015 issue, I fairly raved about Simaudio's Moon Evolution 740P line-stage preamplifier, and now here I am confronting its Moon Evolution 860A power amp. The two are companion models of sorts, with prices of $9500 for the 740P, $15,000 for the 860A—and for much of the time I spent listening to the 740P it was hooked up to the 860A, so some of the descriptions of sound in this review will seem familiar. The two components are both products of the same design shop—Simaudio, Ltd., of Quebec, which has been a prominent brand in high-end audio for 35 years—and are often marketed as a pair, so it should be no surprise if they have a common sound.