I've said it before and I'll say it again: High-end audio is the tail of the dog that is the consumer audio business. We have little leverage in determining where the technology is going, even though we undoubtedly know more about it than the average buyer. On the other hand, after the mainstream has determined where it's going (or thinks it's going), the high-end business must accept that, and try to optimize it for those of us who care deeply about getting the best sound. The ubiquitous iPod and its fellow MP3 players kicked off the playing of music files and allowed listeners to carry around their music wherever they went.

Big tube amplifiers were once scary monsters reserved for those who didn't mind heavy maintenance, careful tweaking, and the occasional explosion. Blown tubes required replacing, preferably with pricey matched pairs, then biasing with a voltmeter. Optimal sonic performance required regular bias monitoring and adjusting, and because of current surges on startup, you had to choose between leaving the heat-producing monoliths on, or turning them on and off for each listening session, thus shortening the life of the tubes.

Saturday, May 3, 1–5pm, Fidelis, located at 460 Amherst Street, Nashua, NH will host a seminar and open house with Peter McGrath of Wilson Audio (above) to celebrate and present Wilson Audio's new Sasha 2 loudspeaker. Brian Zolner of Bricasti Design will be on hand to talk about digital solutions and his highly regarded Bricasti M1 DAC, and Stereophile Senior Editor John Marks will be on hand to share his industry insights. Refreshments will be served. RSVP is appreciated: email store@fidelisav.com or call (603) 880-4434.

From whatever vantage point you choose, AXPONA (Audio Expo North America) 2014 in Chicago's Westin O'Hare was a major success. Attendance on opening day, Friday, April 25, was quite robust, and the feeling in the hallway and in rooms was extremely positive. Saturday was mobbed, with standees in many rooms during peak hours, and hallways buzzing.