The three phase power supply is pure Ayre. There are three amplifiers, one for each phase. "Essentially, they are mini-MXRs," said Silberman. They are 120 degrees out of phase with one another, and we need to tune each one with a stethoscope to achieve absolute pitch stability. The result?
We were stunned to see Roger Skoff in the Ultralink/XLO room—we thought he'd retired years ago. "I did," he explained, "but I was asked to design some new stuff incorporating new technologies and more advanced versions of our existing designs."
It exists; we saw it for ourselves! Wadia's $349 iTransport can take the digital signal out of an iPod before the DAC, outputting 16-bit/44.1khz resolution for uncompressed files—it doesn't upconvert lower-rez files like MP3s, but it does reformat them to 16/44.1, according to Wadia's John Schaffer.
We ran into SinglePower Inc.'s Mikhail Rotenberg as he was sprinting down the hall to the Synergistic Research room. "Check these out," he said. "These are a 1932 Tung Argon 4327 and a 1943 722A (323), labeled Centennial, but manufactured by Western Electric."
"Recent advances in solid-state output devices and other components have opened up design possibilities never previously available," Audio Research's Terry Dorn explained. "And that led to our developing the Hybrid Drive HD220 stereo power amplifier ($8995)."