Kalman Rubinson

Merging Technologies' original NADAC Multichannel-8 ($11,500) is an impressive device. (NADAC is an acronym for network-attached digital-to-analog converter.) It has eight channels of high-resolution D/A conversion, and two more for its front-panel headphone jack; a cutting-edge Ravenna Ethernet input (based on the AES67 Audio over Internet Protocol, or AoIP); and, to my delight, a real volume-control knob on the front.

Today at the CES in Las Vegas, it was announced that Sound United (Denon, Marantz, Polk Audio, Definitive Technology, Polk BOOM, HEOS, and Boston Acoustics) had acquired Classé Audio and that operations would be resumed under the leadership of Dave Nauber.

For some months now, I've lived mostly without music. To survive the dust and grit of the renovation of our Manhattan apartment, all electronics had to be covered with heavy plastic, the speakers encapsulated in large green lawn bags, and the listening room partitioned off with a temporary wall. We could listen to music with our little 3.1-channel TV system in the den (eh) or through headphones (not!), or we could decamp to our house in Connecticut, which we did as much as possible. I felt deprived. Now that it's all over, I'm grateful to have it back—and grateful for the improvements in the main system, some of them direct byproducts of the renovation.

At the risk of offending nearly every designer and manufacturer of loudspeakers, I think we have not seen anything really new in a long time. Casting a gimlet eye at Stereophile's "Recommended Components" reveals some electrostatic and planar-magnetic models, a few horns, and lots and lots of cones and domes in boxes. Those cones and domes have voice-coils inductively driven by permanent magnets, and overwhelmingly use passive crossovers. Innovation in speakers mostly takes the form of advancements in materials science and, to a much lesser degree, cabinet shape. All helpful, but not revolutionary.