In 1988, Bob Carver set out to design the best amplifier he possibly could, without regard for cost. It was more of an ego exercise than an attempt to build a product with wide commercial appeal. The result was the four-chassis, $17,500 Silver Seven.

Interestingly, Bob Carver chose vacuum tubes to realize his dream of building the ultimate power amplifier. The Silver Seven uses fourteen KT88 output tubes per channel, and puts out 375W into 8 ohms. Bob built three pairs of Silver Sevens, not expecting to sell many at the $17,500 asking price. When those sold quickly, another 10 pairs were manufactured. Now, demand is so great that Silver Sevens are built in groups of 30 pairs.

One evening late last summer I took the most expensive workout of my life. In my hurry to meet a friend at the gym, I left the house, leaving my computer and hi-fi on despite the ominous look of the sky. In the South, experience teaches you to dash about disconnecting everything at the first sign of a thunderstorm. Usually I do, but this time my mind was elsewhere.

Philip Glass (b. 1937) may not quite be a household name in America, but he's surely as well-known as any living classical composer, and the repetitive minimalism that is the hallmark of his music has influenced everything from rock music to TV commercials. Still, after 5 decades of composing, it took a commission from Chicago-based Third Coast Percussion for Glass to write his first concerto for percussion ensemble, Perpetulum—"What took them so long to ask me?" Glass has said about the commission. TCP has just released the premiere recording of the 21:23 minute concerto on their new 2-CD set, Perpetulum (OM 0132), from Glass's own label, Orange Mountain Music. The recording, which was engineered in 24/96, is also available as a download with those specifications.