In front of the room sponsored by GoldenEar Technology and PrimaLuna USA, I saw tube maven Kevin Deal (above)—the latter company's Primary Dude—displaying the insides of a PrimaLuna amplifier. PR man extraordinaire Anthony Chiarella was sitting next to him saying, "Its built like a Fabergé egg." Which indeed it was.

Celebrating 21 years of affordable Music Hall turntables, the irascible Roy Hall (right) was in fine form on AXPONA's opening day, offering show specials.

I'm a little old to be a fan (but I am), and some say singer-songwriter Billie Eilish is a little young (just turned 17) to be as famous and successful as she is. But hey, what's-his-name from the Jackson Five was only five years old when he was that famous . . .

On my way to AXPONA's Master Class Theater to catch Rob Robinson's seminar on current-mode phono preamplifiers, I was buttonholed by David Janszen. The Janszen name is synonymous with electrostatic drive-units—the midrange unit in the legendary Wilson WAMM was based on Janszen technology—and at AXPONA David was demonstrating prototype electrostatic headphones, the Lotus.

Check this out, Herb Reichert. Oklahoma City-based Great Plains Audio grew from what was left of the Altec Lansing corporation in 1998. It focuses on manufacturing the classic high-sensitivity drive-units and speaker systems from the legendary company. Located next to the AXPONA Master Class Theater, the Great Plains booth featured their version of the classic coaxial drive-unit that was introduced in 1944 and powered recording studio monitors in the 1950s and '60s.

I turned up at Mike Jbara's Master Class presentation Friday afternoon, "Achieving Authentic Studio Quality Sound," expecting fireworks. Jbara is the chief executive of MQA and many internet denizens had declared that they would be attending his presentation to oppose what he would be saying. But all was quiet during Jbara's 45-minute talk on what he regards as the benefits of the controversial codec to both the music industry and to audiophiles. Another MQA-related Master Class takes place at AXPONA Saturday April 13 at 12 noon. Moderated by Besflores Nievara Jr., Brand Ambassador for Music Direct, Mike Jbara will join MQA partner NAD's CTO, Greg Stidsen, and other panelists to discuss "The Future of High Resolution Audio." Perhaps the fireworks will be in evidence tomorrow!

Spying the Scaena (pronounced Sane-a) room, I was happy to hear their fabulous sounding speakers once again. This time it was the Scaena Model 3 ($90,000 pair including the two big subwoofers), driven by a High Fidelity Cables MA-1 amplifier ($30,000), fed by a four-stack dCS Vivaldi system ($114,996 total) and connected by High Fidelity cables.

Despite the challenging acoustics of air-walled conference rooms, retailer Audio Video Interiors produced extremely satisfying sound. True to McIntosh Laboratory's sonic signature, the company's C-1100 preamp ($14,000), relatively new 600Wpc MC-611 monoblocks ($15,000/pair), and MPC-1500 line filter ($5500) produced a beautiful, strong midrange and mellow top.

Disorder was the order of the day as everyone and their father ogled and chatted about the VAC Statement 450i iQ integrated amplifier ($150,000). During my relatively brief visit to this free-for-all space, in which demonstrations alternated between two systems, there were up to six people standing in front of the one I tried to hear. At one point, someone blocked the speaker on one side while a company rep chatted it up with someone on the other.

AXPONA's Master Class lectures offer a series of seminars on sometimes controversial subjects. To wrap up Friday afternoon's talks, Channel D's Rob Robinson explained why for phono preamplifiers, current-mode amplification, with its zero-ohm input impedance, gets the best signal/noise ratio from moving-coil cartridges, compared with conventional voltage-mode circuits, and even improves tracking performance.