For the past few years, one of Stereophile's go-to recommendations for affordable high-performance D/A processors has been the M1DAC from British company Musical Fidelity. The M1DAC was enthusiastically reviewed by Sam Tellig in March 2011, and I wrote about the most recent version in January 2013. "Purity of tone was exceptional," decided Mr. T., which I found to be accompanied by superb measured performance, all at a very reasonable price: $749.

"My life would be worthless without music," says one young member of the Landfill Harmonic, a music program for the children of Cateura, Paraguay.

In the September 2005 issue (Vol.28 No.9), I reviewed Simaudio's first reference-quality power amplifier: the 1000W, 220-lb Moon Rock monoblock ($37,000/pair). At the time, the Rock was a dramatic departure for Simaudio, then primarily known as a maker of midpriced gear that was good for the money. I found a lot to like about the Rock, concluding that while it wasn't quite up to the standard of the best superamps of the time, it was very good—and, for Simaudio, an admirable first shot at the state of the art.