In the late 1980s, when I began reviewing high-end subwoofers, they were big and heavy, difficult to move or find space for in a room. Their controls were always on an inconveniently positioned rear panel, and there were no built-in automatic room-optimization options or parametric equalizers. Velodyne's 105-lb, downfiring ULD-18 ($2570), ca 1989, was typical: Two people were needed to unpack and move it; it was powered by an outboard 400W amplifier, connected inconveniently with a speaker cable and an RCA-terminated interconnect for its servo control; and its controls were on the bottom of the cabinet. Changing its crossover frequency involved soldering new resistors onto a printed circuit board inside the amp.

Every time I fly to California, my brain gets stuck on the lyrics of that Arlo Guthrie song: "Coming into Los Angeles / bringing in a couple of keys . . ." Even landing in San Francisco, I'm always smiling, because I've never been busted in California.

Which means that I'm a lucky guy. In this life I have acquired nothing of material value, but I did see Howlin' Wolf and Little Walter in Chicago in 1962, at Theresa's. I spent the whole Summer of Love (1967) in San Francisco listening to music. And because I lived only a few blocks away, I witnessed the Ramones' first gig at CBGB, in 1974.

There are many ways to talk about the remarkable Symphonies Nos.1 & 4 • Jeux vénitiens of Polish composer Witold Lutoslawski (1913–1994). You could, for example, approach them as does Kimmo Korhonen, whose extremely detailed and well-thought-out liner notes for the recent Ondine SACD of these works from Hannu Lintu and the Finnish Radio Symphony Orchestra examine the evolution of Lutoslawski's tonal language and explain that they basically represent the beginning (Symphony No.1, 1947), middle (Venetian Games, 1960–1961) and end (Symphony No.4, 1992) of his arc as a mature composer. Or you could simply close your eyes and discover how many fantastic places they take you to.

To audio designers in Japan and elsewhere, the single-ended, 300B-tubed amplifier is like a haiku: an art form defined by both its prescribed limitations and the potential such restraint offers for artistic expression. Here, the only hard-and-fast rule is a simple one: output devices are limited to one 300B directly heated triode tube per channel. From there, it's a blank slate: Do you want AC or DC on the output-tube heaters? Tube or solid-state rectification? Low or high gain? Fixed or cathode bias? New parts, vintage parts, or a mix of both? Triode or pentode tubes as drivers? Capacitors or transformers—or nothing at all—between the plates of the driver tubes and the grids of the output tubes?