Jewelers Philippe and Mathieu Tournaire add 18-karat bands of gold at each end of the Utopia's headband, and each is set with three 1-karat diamonds in square, triangular, and round shapes, representing the three stages of life: the past, the present, and the future.
At CES 2017, Japanese manufacturer A&M Ltd. announced the expansion of their Air Tight amplifier line with the ATM-3211 all-triode, 120W monoblock ($72,000/pair).
In the YG Acoustics-Audionet suite, the sound on playback of Jake Shimabukuro's ukulele wizardry came closer to matching his live performance than in most rooms, perhaps as a result of the excellent match between the Audionet Max monoblock amplifiers and YG Acoustics Sonja XV loudspeakers.
In the D'Agostino exhibit, pure AC power was fed to the Progressive monoblocks by a Stromtank independent power source ($30,000): a 276-lb enclosure in which a 16-cell Lithium phosphate battery pack stores up to 4000W, ultimately to be converted to pure-sinewave AC.
During visits to the suite, I also heard Jake Shimabukuro's ukulele playing, which was outstanding, and then a recording of his performance played back over the Nagra HD monoblocks
Mark Levinson's engineers partnered with VPI's Mat Weisfeld (seen above) to develop the Mark Levinson No.515 turntable. The platter is belt-driven and the speed-control electronics are housed in a metal case under the 'table
Rated at 500W into 8 ohms, the Progressions function as a voltage source, doubling the power with each decrease in load impedance, resulting in 1000W RMS into 4 ohms and 2000W RMS into 2 ohms
In the February 2010 issue of Stereophile, I reviewed Bryston's first standalone digital-to-analog converter, the BDA-1 ($1995). Five years later, Bryston released the BDA-2, which replaced the BDA-1's 24-bit/192kHz Crystal CS-4398 DAC with a pair of AKM DAC chips in balanced mode. In a February 2016 Follow-Up (footnote 1) I reported that the BDA-2 deepened and widened the BDA-1's soundstage, among other performance gains.