We're well past the day when the sound of top-tier tube amplifiers can be described as "syrupy" or "too warm" or producing "soft bass." Equally true, solid-state designs have reached a level of maturity at which "sweetness," "fluidity," and "flow" are similarly applicable descriptors, thus smashing the cliché of "cold transistor sound."

The Final Tour, Volume 6 of Columbia Legacy's Miles Davis Bootleg Series—documenting Miles' quintet, featuring John Coltrane, live in Europe in March 1960—is one of the most revelatory new-old jazz albums in recent years. Of the five concerts on the 4-CD boxed set, one of them—the March 24 date in Copenhagen—is now out on 180-gram LP, and not only is the music thrilling, the sound quality is extraordinary: as vibrant as just about any live album in the Miles catalog.

A selection of gear from Gryphon Audio Designs, the Danish firm founded some 33 years ago by Flemming Rasmussen, will be introduced to listeners at a special event on Thursday, May 3, at The Sound Environment, 11021 Elm Street, Omaha, NE.

When I reviewed the Mark Levinson No.536 monoblock, I said that its sound quality was second to none. However, its stratospheric price of $30,000/pair unnerved me—only seven of the 35 top-rated solid-state power amplifiers listed in the April 2017 edition of Stereophile's "Recommended Components" cost more, and a similar number (not the same models) deliver more power into 8 ohms. "But don't despair," I wrote—"Mark Levinson has just released a less expensive version of the No.536: the dual-mono, 350Wpc No.534 stereo amp ($20,000)." I requested a review sample of the No.534, to see if it matched the No.536's outstanding qualities of build and sound.

For some years now, I've tried to free myself from playing physical media and get all my music organized on a server. It's not that I don't enjoy handling and playing discs, but it's almost impossible to keep track of them. When my collection was only a thousand or two LPs, I felt I could remember each one individually. But now I have several times that many silver discs, and I know I can't.

Cellist Antonio Lysy, whose Yarlung Records recording Antonio Lysy at the Broad won a Latin Grammy for its inclusion of Lalo Schifrin's song "Pampas," has returned with a unique recording of South American-connected compositions and arrangements. Aptly titled South America (YAR80167DSD), the nine compositions honor Astor Piazzolla, Heitor Villa-Lobos, Carlos Gardel, Antonio's violinist father Alberto Lysy, and Argentine bandoneon master Coco Trivisonno. There's even some Brazilian-tinged J.S. Bach and a work by Spanish cellist Pablo Casals.