1. estreeter

    Class D - heaven or hell ?

    Hi All,         I suspect that many of you favour tube designs over SS, but some of the claim and counter-claim around Class D blows my mind. I've read Martin Collums' thoughts from 2007 and another pasting from an engineer in 2004, but none of it seems to accept that the technology MAY...
  2. NAD C 390DD

    NAD C 390DD

    The NAD C 390DD is not only a new concept in amplification, but also in audio system architecture. First introduced in the now famous NAD M2 Direct Digital Amplifier, Direct Digital technology has been praised for its transparent, dynamic and detailed sound quality. Like the M2, the C 390DD has...