I may not own any PS Audio electronics at the moment but having heard the PerfectWave first gen a few years back, with the PW Transport and the Digital Lens network card, I honestly don't think Paul McGowan is a "marketing" guy per se. I read his blog periodically and find he talks a lot of sense. His PW DAC IMHO broke some new ground, especially with the digital lens add on.
His new DAC IMHO follows on from what designers like Ed Meitner and Andreas Koch have also adopted in the past and the premise of using a higher clock rate (to push the noise level to a higher band) is IMHO sound engineering principles.
In addition to EMM and Playback, which also use FPGAs, I have also heard the Chord QBD72 (the older non DSD model) which is another FPGA based design. It is also an incredible performer and was my dream DAC for a long time.
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